change price index to multiple indexes in product/info/prices

add enum types where possible

.gitignore

@@ -1 +1,2 @@
 *.out
+mistakes.md

ENDPOINTS.md

@@ -1,30 +1,30 @@
 # Supported Endpoints
 
 ## Ozon attributes and characteristics
-- [ ] Product category tree
-- [ ] Category characteristics list
-- [ ] Characteristics value directory
+- [x] Product category tree
+- [x] Category characteristics list
+- [x] Characteristics value directory
 
 ## Uploading and updating products
 - [x] Create or update a product
-- [ ] Get the product import status
-- [ ] Create a product by Ozon ID
-- [ ] Upload and update product images
-- [ ] Check products images uploading status
+- [x] Get the product import status
+- [x] Create a product by Ozon ID
+- [x] Upload and update product images
+- [x] Check products images uploading status
 - [x] List of products
 - [x] Product details
 - [x] Get products' content rating by SKU
-- [ ] Get a list of products by identifiers
-- [ ] Get a description of the product characteristics
-- [ ] Get product description
-- [ ] Product range limit, limits on product creation and update
-- [ ] Change product identifiers from the seller's system
-- [ ] Archive a product
-- [ ] Unarchive a product
-- [ ] Remove a product without an SKU from the archive
-- [ ] Get a list of geo-restrictions for services
-- [ ] Upload activation codes for services and digital products
-- [ ] Status of uploading activation codes
+- [x] Get a list of products by identifiers
+- [x] Get a description of the product characteristics
+- [x] Get product description
+- [x] Product range limit, limits on product creation and update
+- [x] Change product identifiers from the seller's system
+- [x] Archive a product
+- [x] Unarchive a product
+- [x] Remove a product without an SKU from the archive
+- [x] Get a list of geo-restrictions for services
+- [x] Upload activation codes for services and digital products
+- [x] Status of uploading activation codes
 
 ## Prices and Stocks
 - [x] Update stocks
@@ -32,124 +32,123 @@
 - [x] Information about product quantity
 - [x] Stocks in seller's warehouses (FBS и rFBS)
 - [x] Update prices
-- [ ] Get product price information
-- [ ] Get information about the markdown and the main product by the markdown product SKU
-- [ ] Set a discount on a markdown product
+- [x] Get product price information
+- [x] Get information about the markdown and the main product by the markdown product SKU
+- [x] Set a discount on a markdown product
 
 ## Promotions
 - [x] Available promotions
-- [ ] Products that can participate in a promotion
-- [ ] Products in a promotion
+- [x] Products that can participate in a promotion
+- [x] Products in a promotion
 - [x] Add products to promotion
-- [ ] Remove products from promotion
-- [ ] List of available Hot Sale promotions
-- [ ] List of products participating in the Hot Sale promotion
-- [ ] Add products to the Hot Sale promotion
-- [ ] Remove product from the Hot Sale promotion
-- [ ] List of discount requests
-- [ ] Approve a discount request
-- [ ] Decline a discount request
+- [x] Remove products from promotion
+- [x] List of available Hot Sale promotions
+- [x] List of products participating in the Hot Sale promotion
+- [x] Add products to the Hot Sale promotion
+- [x] Remove product from the Hot Sale promotion
+- [x] List of discount requests
+- [x] Approve a discount request
+- [x] Decline a discount request
 
 ## Brand certificates
-- [ ] List of certified brands
+- [x] List of certified brands
 
 ## Quality certificates
-- [ ] List of accordance types (version 1)
-- [ ] List of accordance types (version 2)
-- [ ] Directory of document types
-- [ ] List of certified categories
-- [ ] Adding certificates for products
-- [ ] Link the certificate to the product
-- [ ] Delete certificate
-- [ ] Certificate information
-- [ ] Certificates list
-- [ ] Product statuses list
-- [ ] List of products associated with the certificate
-- [ ] Unbind products from a certificate
-- [ ] Possible certificate rejection reasons
-- [ ] Possible certificate statuses
+- [x] List of accordance types (version 2)
+- [x] Directory of document types
+- [x] List of certified categories
+- [x] Adding certificates for products
+- [x] Link the certificate to the product
+- [x] Delete certificate
+- [x] Certificate information
+- [x] Certificates list
+- [x] Product statuses list
+- [x] List of products associated with the certificate
+- [x] Unbind products from a certificate
+- [x] Possible certificate rejection reasons
+- [x] Possible certificate statuses
 
 ## Warehouses
 - [x] List of warehouses
 - [x] List of delivery methods for a warehouse
 
 ## Polygons
-- [ ] Create delivery polygon
-- [ ] Link delivery method to a delivery polygon
-- [ ] Delete polygon
+- [x] Create delivery polygon
+- [x] Link delivery method to a delivery polygon
+- [x] Delete polygon
 
 ## FBO
 - [x] Shipments list
-- [ ] Shipment details
+- [x] Shipment details
 
 ## FBS and rFBS products labeling
-- [ ] Validate labeling codes
-- [ ] Check and save product items data
-- [ ] Get product items check statuses
+- [x] Validate labeling codes
+- [x] Check and save product items data
+- [x] Get product items check statuses
 - [x] Pack the order (version 4)
 
 ## FBS and rFBS
 - [x] List of unprocessed shipments (version 3)
 - [x] Shipments list (version 3)
-- [ ] Get shipment details by identifier (version 3)
-- [ ] Get shipment data by barcode
-- [ ] List of manufacturing countries
-- [ ] Set the manufacturing country
-- [ ] Specify number of boxes for multi-box shipments
-- [ ] Get drop-off point restrictions
-- [ ] Partial pack the order
-- [ ] Create an acceptance and transfer certificate and a waybill
-- [ ] Status of acceptance and transfer certificate and waybill
-- [ ] Available freights list
-- [ ] Get acceptance and transfer certificate and waybill
-- [ ] Generating status of digital acceptance and transfer certificate and waybill
-- [ ] Get digital shipment certificate
-- [ ] Print the labeling
-- [ ] Create a task to generate labeling
-- [ ] Get a labeling file
-- [ ] Package unit labels
-- [ ] Open a dispute over a shipment
-- [ ] Pass the shipment to shipping
-- [ ] Shipment cancellation reasons
-- [ ] Shipments cancellation reasons
-- [ ] Cancel the shipment
-- [ ] Add weight for bulk products in a shipment
-- [ ] Cancel sending some products in the shipment
-- [ ] List of shipment certificates
-- [ ] Sign shipment certificates
-- [ ] List of shipments in the certificate
-- [ ] Change the status to "Delivering"
-- [ ] Add tracking numbers
-- [ ] Change the status to "Last Mile"
-- [ ] Change the status to "Delivered"
-- [ ] Change status to "Sent by seller"
-- [ ] Dates available for delivery reschedule
-- [ ] Reschedule shipment delivery date
-- [ ] ETGB customs declarations
+- [x] Get shipment details by identifier (version 3)
+- [x] Get shipment data by barcode
+- [x] List of manufacturing countries
+- [x] Set the manufacturing country
+- [x] Specify number of boxes for multi-box shipments
+- [x] Get drop-off point restrictions
+- [x] Partial pack the order
+- [x] Create an acceptance and transfer certificate and a waybill
+- [x] Status of acceptance and transfer certificate and waybill
+- [x] Available freights list
+- [x] Get acceptance and transfer certificate and waybill
+- [x] Generating status of digital acceptance and transfer certificate and waybill
+- [x] Get digital shipment certificate
+- [x] Print the labeling
+- [x] Create a task to generate labeling
+- [x] Get a labeling file
+- [x] Package unit labels
+- [x] Open a dispute over a shipment
+- [x] Pass the shipment to shipping
+- [x] Shipment cancellation reasons
+- [x] Shipments cancellation reasons
+- [x] Cancel the shipment
+- [x] Add weight for bulk products in a shipment
+- [x] Cancel sending some products in the shipment
+- [x] List of shipment certificates
+- [x] Sign shipment certificates
+- [x] List of shipments in the certificate
+- [x] Change the status to "Delivering"
+- [x] Add tracking numbers
+- [x] Change the status to "Last Mile"
+- [x] Change the status to "Delivered"
+- [x] Change status to "Sent by seller"
+- [x] Dates available for delivery reschedule
+- [x] Reschedule shipment delivery date
+- [x] ETGB customs declarations
 
 ## Returns
 - [x] Get information about FBO returns (version 3)
 - [x] Get information about FBS returns
 
 ## Cancellations
-- [ ] Get information about a rFBS cancellation request
-- [ ] Get a list of rFBS cancellation requests
-- [ ] Approve a rFBS cancellation request
-- [ ] Reject a rFBS cancellation request
+- [x] Get information about a rFBS cancellation request
+- [x] Get a list of rFBS cancellation requests
+- [x] Approve a rFBS cancellation request
+- [x] Reject a rFBS cancellation request
 
 ## Chats with customers
-- [ ] Chats list
-- [ ] Send message
-- [ ] Send file
-- [ ] Chat history
-- [ ] Update chat
-- [ ] Create a new chat
-- [ ] Mark messages as read
+- [x] Chats list
+- [x] Send message
+- [x] Send file
+- [x] Chat history
+- [x] Update chat
+- [x] Create a new chat
+- [x] Mark messages as read
 
 ## Invoices
-- [ ] Create or edit proforma invoice link
-- [ ] Get a proforma invoice link
-- [ ] Delete the proforma invoice link
+- [x] Create or edit proforma invoice link
+- [x] Get a proforma invoice link
+- [x] Delete the proforma invoice link
 
 ## Reports
 - [x] Report details
@@ -160,9 +159,9 @@
 - [x] Returns report
 - [x] Shipment report
 - [x] Financial report
-- [ ] Issue a report on discounted products
-- [ ] Report on discounted products
-- [ ] List of reports on discounted products
+- [x] Issue a report on discounted products
+- [x] Report on discounted products
+- [x] List of reports on discounted products
 
 ## Analytics
 - [x] Analytics data
@@ -170,7 +169,7 @@
 
 ## Finance
 - [x] Report on sold products
-- [ ] Transactions list (version 3)
+- [x] Transactions list (version 3)
 - [x] Total transactions sum
 
 ## Seller rating

README.md

@@ -11,6 +11,8 @@ Read full [documentation](https://docs.ozon.ru/api/seller/en/#tag/Introduction)
 You can check [list of supported endpoints](ENDPOINTS.md)
 
 ## How to start
+Get Client-Id and Api-Key in your seller profile [here](https://seller.ozon.ru/app/settings/api-keys?locale=en)
+
 Just add dependency to your project and you're ready to go.
 ```bash
 go get github.com/diphantxm/ozon-api-client
@@ -33,7 +35,7 @@ func main() {
 	client := ozon.NewClient("my-client-id", "my-api-key")
 
 	// Send request with parameters
-	resp, err := client.GetProductDetails(&ozon.GetProductDetailsParams{
+	resp, err := client.Products().GetProductDetails(&ozon.GetProductDetailsParams{
 		ProductId: 123456789,
 	})
 	if err != nil || resp.StatusCode != http.StatusOK {

client.go

@@ -56,7 +56,7 @@ func (c Client) newRequest(method string, url string, body interface{}) (*http.R
 	return req, nil
 }
 
-func (c Client) Request(method string, path string, req, resp interface{}) (*Response, error) {
+func (c Client) Request(method string, path string, req, resp interface{}, options map[string]string) (*Response, error) {
 	httpReq, err := c.newRequest(method, path, req)
 	if err != nil {
 		return nil, err

client_test.go

@@ -55,7 +55,7 @@ func TestRequest(t *testing.T) {
 		c := NewMockClient(NewMockHttpHandler(test.statusCode, test.response, test.headers))
 
 		respStruct := &TestRequestResponse{}
-		resp, err := c.Request(http.MethodPost, "/", test.params, respStruct)
+		resp, err := c.Request(http.MethodPost, "/", test.params, respStruct, nil)
 
 		if err != nil {
 			t.Error(err)

ozon/analytics.go

@@ -19,7 +19,7 @@ type GetAnalyticsDataParams struct {
 	DateTo time.Time `json:"date_to"`
 
 	// Items Enum: "unknownDimension" "sku" "spu" "day" "week" "month" "year" "category1" "category2" "category3" "category4" "brand" "modelID"
-	Dimension []string `json:"dimension"`
+	Dimension []GetAnalyticsDataDimension `json:"dimension"`
 
 	// Filters
 	Filters []struct {
@@ -27,9 +27,7 @@ type GetAnalyticsDataParams struct {
 		Key string `json:"key"`
 
 		// Comparison operation
-		//
-		// Enum: "EQ" "GT" "GTE" "LT" "LTE"
-		Operation string `json:"operation"`
+		Operation GetAnalyticsDataFilterOperation `json:"operation"`
 
 		// Value for comparison
 		Value string `json:"value"`
@@ -41,11 +39,7 @@ type GetAnalyticsDataParams struct {
 	Limit int64 `json:"limit"`
 
 	// Specify up to 14 metrics. If there are more, you will get an error with the InvalidArgument code
-	//
-	// Items Enum: "unknown_metric" "hits_view_search" "hits_view_pdp" "hits_view" "hits_tocart_search" "hits_tocart_pdp" "hits_tocart" "session_view_search"
-	// "session_view_pdp" "session_view" "conv_tocart_search" "conv_tocart_pdp" "conv_tocart" "revenue" "returns" "cancellations" "ordered_units" "delivered_units"
-	// "adv_view_pdp" "adv_view_search_category" "adv_view_all" "adv_sum_all" "position_category" "postings" "postings_premium"
-	Metrics []string `json:"metrics"`
+	Metrics []GetAnalyticsDataFilterMetric `json:"metrics"`
 
 	// Number of elements that will be skipped in the response. For example, if `offset=10`, the response will start with the 11th element found
 	Offset int64 `json:"offset"`
@@ -57,12 +51,10 @@ type GetAnalyticsDataParams struct {
 // Report sorting settings
 type GetAnalyticsDataSort struct {
 	// Metric by which the method result will be sorted
-	Key string `json:"key"`
+	Key GetAnalyticsDataFilterMetric `json:"key"`
 
 	// Sorting type
-	//   - ASC — in ascending order,
-	//   - DESC — in descending order.
-	Order string `json:"order"`
+	Order Order `json:"order"`
 }
 
 type GetAnalyticsDataResponse struct {
@@ -99,7 +91,7 @@ func (c Analytics) GetAnalyticsData(params *GetAnalyticsDataParams) (*GetAnalyti
 
 	resp := &GetAnalyticsDataResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -112,16 +104,13 @@ type GetStocksOnWarehousesParams struct {
 	// Number of values per page.
 	//
 	// Default is 100
-	Limit int64 `json:"limit"`
+	Limit int64 `json:"limit" default:"100"`
 
 	// Number of elements that will be skipped in the response. For example, if `offset=10`, the response will start with the 11th element found
 	Offset int64 `json:"offset"`
 
 	// Warehouse type filter:
-	//   - EXPRESS_DARK_STORE — Ozon warehouses with Fresh delivery.
-	//   - NOT_EXPRESS_DARK_STORE — Ozon warehouses without Fresh delivery.
-	//   - ALL — all Ozon warehouses.
-	WarehouseType string `json:"warehouse_type"`
+	WarehouseType WarehouseType `json:"warehouse_type"`
 }
 
 type GetStocksOnWarehousesResponse struct {
@@ -161,7 +150,7 @@ func (c Analytics) GetStocksOnWarehouses(params *GetStocksOnWarehousesParams) (*
 
 	resp := &GetStocksOnWarehousesResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}

ozon/analytics_test.go

@@ -23,12 +23,12 @@ func TestGetAnalyticsData(t *testing.T) {
 			&GetAnalyticsDataParams{
 				DateFrom:  core.TimeFromString(t, "2006-01-02", "2020-09-01"),
 				DateTo:    core.TimeFromString(t, "2006-01-02", "2021-10-15"),
-				Dimension: []string{"sku", "day"},
-				Metrics:   []string{"hits_view_search"},
+				Dimension: []GetAnalyticsDataDimension{SKUDimension, DayDimension},
+				Metrics:   []GetAnalyticsDataFilterMetric{AdvViewAll},
 				Sort: []GetAnalyticsDataSort{
 					{
-						Key:   "hits_view_search",
-						Order: "DESC",
+						Key:   HistViewPDP,
+						Order: Descending,
 					},
 				},
 				Limit:  1000,
@@ -127,5 +127,11 @@ func TestGetStocksOnWarehouses(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result.Rows) > int(test.params.Limit) {
+				t.Errorf("Length of rows is bigger than limit")
+			}
+		}
 	}
 }

ozon/brands.go

@@ -0,0 +1,55 @@
+package ozon
+
+import (
+	"net/http"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+type Brands struct {
+	client *core.Client
+}
+
+type ListCertifiedBrandsParams struct {
+	// Number of the page returned in the request
+	Page int32 `json:"page"`
+
+	// Number of elements on the page
+	PageSize int32 `json:"page_size"`
+}
+
+type ListCertifiedBrandsResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// Certified brands details
+		BrandCertification []struct {
+			// Brand name
+			BrandName string `json:"brand_name"`
+
+			// Indication that the certificate is required:
+			//   - true if the certificate is required;
+			//   - false if not
+			HasCertificate bool `json:"has_certificate"`
+		} `json:"brand_certification"`
+
+		// Total number of brands
+		Total int64 `json:"total"`
+	} `json:"result"`
+}
+
+// List of certified brands
+func (c Brands) List(params *ListCertifiedBrandsParams) (*ListCertifiedBrandsResponse, error) {
+	url := "/v1/brand/company-certification/list"
+
+	resp := &ListCertifiedBrandsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}

ozon/brands_test.go

@@ -0,0 +1,70 @@
+package ozon
+
+import (
+	"net/http"
+	"testing"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+func TestListCertifiedBrands(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ListCertifiedBrandsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListCertifiedBrandsParams{
+				Page:     0,
+				PageSize: 0,
+			},
+			`{
+				"result": {
+				  "brand_certification": [
+					{
+					  "brand_id": 135476863,
+					  "brand_name": "Sea of Spa",
+					  "has_certificate": false
+					}
+				  ],
+				  "total": 1
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListCertifiedBrandsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Brands().List(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if int64(len(resp.Result.BrandCertification)) != resp.Result.Total {
+				t.Errorf("Length of brands in response is not equal to total field in response")
+			}
+		}
+	}
+}

ozon/cancellations.go

@@ -0,0 +1,207 @@
+package ozon
+
+import (
+	"net/http"
+	"time"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+type Cancellations struct {
+	client *core.Client
+}
+
+type GetCancellationInfoParams struct {
+	// Cancellation request identifier
+	CancellationId int64 `json:"cancellation_id"`
+}
+
+type GetCancellationInfoResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result CancellationInfo `json:"result"`
+}
+
+type CancellationInfo struct {
+	// Cancellation request identifier
+	CancellationId int64 `json:"cancellation_id"`
+
+	// Shipment number
+	PostingNumber string `json:"posting_number"`
+
+	// Cancellation reason
+	CancellationReason struct {
+		// Cancellation reason identifier
+		Id int64 `json:"id"`
+
+		// Cancellation reason name
+		Name string `json:"name"`
+	} `json:"cancellation_reason"`
+
+	// Cancellation request creation date
+	CancelledAt time.Time `json:"cancelled_at"`
+
+	// Comment to cancellation submitted by cancellation initiator
+	CancellationReasonMessage string `json:"cancellation_reason_message"`
+
+	// Delivery service integration type
+	TPLIntegrationType string `json:"tpl_integration_type"`
+
+	// Cancellation request status
+	State struct {
+		// Status identifier
+		Id int64 `json:"id"`
+
+		// Status name
+		Name string `json:"name"`
+
+		// Request status
+		State string `json:"state"`
+	} `json:"state"`
+
+	// Cancellation initiator
+	CancellationInitiator string `json:"cancellation_initiator"`
+
+	// Order creation date
+	OrderDate time.Time `json:"order_date"`
+
+	// Comment submitted on the cancellation request approval or rejection
+	ApproveComment string `json:"approve_comment"`
+
+	// Cancellation request approval or rejection date
+	ApproveDate time.Time `json:"approve_date"`
+
+	// Date after which the request will be automatically approved
+	AutoApproveDate time.Time `json:"auto_approve_date"`
+}
+
+// Method for getting information about a rFBS cancellation request
+func (c Cancellations) GetInfo(params *GetCancellationInfoParams) (*GetCancellationInfoResponse, error) {
+	url := "/v1/delivery-method/list"
+
+	resp := &GetCancellationInfoResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ListCancellationsParams struct {
+	// Filters
+	Filter ListCancellationsFilter `json:"filter"`
+
+	// Number of cancellation requests in the response
+	Limit int32 `json:"limit"`
+
+	// Number of elements that will be skipped in the response.
+	// For example, if offset=10, the response will start with the 11th element found
+	Offset int32 `json:"offset"`
+
+	// Additional information
+	With ListCancellationWith `json:"with"`
+}
+
+type ListCancellationsFilter struct {
+	// Filter by cancellation initiator
+	CancellationInitiator []string `json:"cancellation_initiator"`
+
+	// Filter by shipment number.
+	//
+	// Optional parameter. You can pass several values here
+	PostingNumber string `json:"posting_number"`
+
+	// Filter by cancellation request status
+	State string `json:"state"`
+}
+
+type ListCancellationWith struct {
+	// Indication that the counter of requests in different statuses should be displayed in the response
+	Counters bool `json:"counters"`
+}
+
+type ListCancellationsResponse struct {
+	core.CommonResponse
+
+	// Cancellation requests list
+	Result []CancellationInfo `json:"result"`
+
+	// The total number of requests by the specified filters
+	Total int32 `json:"total"`
+
+	// Counter of requests in different statuses
+	Counters struct {
+		// Number of requests for approval
+		OnApproval int64 `json:"on_approval"`
+
+		// Number of approved requests
+		Approved int64 `json:"approved"`
+
+		// Number of rejected requests
+		Rejected int64 `json:"rejected"`
+	} `json:"counters"`
+}
+
+// Method for getting a list of rFBS cancellation requests
+func (c Cancellations) List(params *ListCancellationsParams) (*ListCancellationsResponse, error) {
+	url := "/v1/conditional-cancellation/list"
+
+	resp := &ListCancellationsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ApproveRejectCancellationsParams struct {
+	// Cancellation request identifier
+	CancellationId int64 `json:"cancellation_id"`
+
+	// Comment
+	Comment string `json:"comment"`
+}
+
+type ApproveRejectCancellationsResponse struct {
+	core.CommonResponse
+}
+
+// The method allows to approve an rFBS cancellation request in the ON_APPROVAL status.
+// The order will be canceled and the money will be returned to the customer
+func (c Cancellations) Approve(params *ApproveRejectCancellationsParams) (*ApproveRejectCancellationsResponse, error) {
+	url := "/v1/conditional-cancellation/approve"
+
+	resp := &ApproveRejectCancellationsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+// The method allows to reject an rFBS cancellation request in the ON_APPROVAL status. Explain your decision in the comment parameter.
+// 
+// The order will remain in the same status and must be delivered to the customer
+func (c Cancellations) Reject(params *ApproveRejectCancellationsParams) (*ApproveRejectCancellationsResponse, error) {
+	url := "/v1/conditional-cancellation/reject"
+
+	resp := &ApproveRejectCancellationsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}

ozon/cancellations_test.go

@@ -0,0 +1,271 @@
+package ozon
+
+import (
+	"net/http"
+	"testing"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+func TestGetCancellationInfo(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *GetCancellationInfoParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&GetCancellationInfoParams{
+				CancellationId: 90066344,
+			},
+			`{
+				"result": {
+				  "cancellation_id": 90066344,
+				  "posting_number": "47134289-0029-1",
+				  "cancellation_reason": {
+					"id": 508,
+					"name": "Покупатель отменил заказ"
+				  },
+				  "cancelled_at": "2022-04-07T06:37:26.871105Z",
+				  "cancellation_reason_message": "Изменение пункта выдачи заказа.",
+				  "tpl_integration_type": "ThirdPartyTracking",
+				  "state": {
+					"id": 2,
+					"name": "Подтверждена",
+					"state": "APPROVED"
+				  },
+				  "cancellation_initiator": "CLIENT",
+				  "order_date": "2022-04-06T17:17:24.517Z",
+				  "approve_comment": "",
+				  "approve_date": "2022-04-07T07:52:45.971824Z",
+				  "auto_approve_date": "2022-04-09T06:37:26.871105Z"
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&GetCancellationInfoParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Cancellations().GetInfo(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.CancellationId != test.params.CancellationId {
+				t.Errorf("Cancellation ids in request and response are not equal")
+			}
+		}
+	}
+}
+
+func TestListCancellations(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ListCancellationsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListCancellationsParams{
+				Filter: ListCancellationsFilter{
+					CancellationInitiator: []string{"CLIENT"},
+					State:                 "ALL",
+				},
+				Limit:  2,
+				Offset: 0,
+				With: ListCancellationWith{
+					Counters: true,
+				},
+			},
+			`{
+				"result": [
+				  {
+					"cancellation_id": 50186754,
+					"posting_number": "41267064-0032-1",
+					"cancellation_reason": {
+					  "id": 508,
+					  "name": "Покупатель отменил заказ"
+					},
+					"cancelled_at": "2021-09-03T07:17:12.116114Z",
+					"cancellation_reason_message": "",
+					"tpl_integration_type": "ThirdPartyTracking",
+					"state": {
+					  "id": 2,
+					  "name": "Подтверждена",
+					  "state": "APPROVED"
+					},
+					"cancellation_initiator": "CLIENT",
+					"order_date": "2021-09-03T07:04:53.220Z",
+					"approve_comment": "",
+					"approve_date": "2021-09-03T09:13:12.614200Z",
+					"auto_approve_date": "2021-09-06T07:17:12.116114Z"
+				  },
+				  {
+					"cancellation_id": 51956491,
+					"posting_number": "14094410-0018-1",
+					"cancellation_reason": {
+					  "id": 507,
+					  "name": "Покупатель передумал"
+					},
+					"cancelled_at": "2021-09-13T15:03:25.155827Z",
+					"cancellation_reason_message": "",
+					"tpl_integration_type": "ThirdPartyTracking",
+					"state": {
+					  "id": 5,
+					  "name": "Автоматически отменена",
+					  "state": "REJECTED"
+					},
+					"cancellation_initiator": "CLIENT",
+					"order_date": "2021-09-13T07:48:50.143Z",
+					"approve_comment": "",
+					"approve_date": null,
+					"auto_approve_date": "2021-09-16T15:03:25.155827Z"
+				  }
+				],
+				"total": 19,
+				"counters": {
+				  "on_approval": 0,
+				  "approved": 14,
+				  "rejected": 5
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListCancellationsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Cancellations().List(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestApproveCancellations(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ApproveRejectCancellationsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ApproveRejectCancellationsParams{
+				CancellationId: 74393917,
+			},
+			`{}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ApproveRejectCancellationsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Cancellations().Approve(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestRejectCancellations(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ApproveRejectCancellationsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ApproveRejectCancellationsParams{
+				CancellationId: 74393917,
+			},
+			`{}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ApproveRejectCancellationsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Cancellations().Reject(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}

ozon/categories.go

@@ -0,0 +1,194 @@
+package ozon
+
+import (
+	"net/http"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+type Categories struct {
+	client *core.Client
+}
+
+type GetProductTreeParams struct {
+	// Category identifier
+	CategoryId int64 `json:"category_id"`
+
+	// Response language
+	Language Language `json:"language" default:"DEFAULT"`
+}
+
+type GetProductTreeResponse struct {
+	core.CommonResponse
+
+	// Category list
+	Result []struct {
+		// Category identifier
+		CategoryId int64 `json:"category_id"`
+
+		// Subcategory tree
+		Children []GetProductTreeResponse `json:"children"`
+
+		// Category name
+		Title string `json:"title"`
+	} `json:"result"`
+}
+
+// Returns product categories in the tree view.
+// New products can be created in the last level categories only.
+// This means that you need to match these particular categories with the categories of your site.
+// It is not possible to create categories by user request
+func (c Categories) Tree(params *GetProductTreeParams) (*GetProductTreeResponse, error) {
+	url := "/v2/category/tree"
+
+	resp := &GetProductTreeResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type GetCategoryAttributesParams struct {
+	// Filter by characteristics
+	AttributeType AttributeType `json:"attribute_type" default:"ALL"`
+
+	// Category identifier
+	CategoryId []int64 `json:"category_id"`
+
+	// Response language
+	Language Language `json:"language" default:"DEFAULT"`
+}
+
+type GetCategoryAttributesResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result []struct {
+		// Array of product characteristics
+		Attributes []struct {
+			// Indication that the dictionary attribute values depend on the category:
+			//   - true — the attribute has its own set of values for each category.
+			//   - false — the attribute has the same set of values for all categories
+			CategoryDependent bool `json:"category_dependent"`
+
+			// Characteristic description
+			Description string `json:"description"`
+
+			// Directory identifier
+			DictionaryId int64 `json:"dictionary_id"`
+
+			// Characteristics group identifier
+			GroupId int64 `json:"group_id"`
+
+			// Characteristics group name
+			GroupName string `json:"group_name"`
+
+			// Document generation task number
+			Id int64 `json:"id"`
+
+			// Indicates that the attribute is aspect. An aspect attribute is a characteristic that distinguishes products of the same model.
+			//
+			// For example, clothes and shoes of the same model may have different colors and sizes. That is, color and size are aspect attributes.
+			//
+			// Values description:
+			//   - true — the attribute is aspect and cannot be changed after the products are delivered to the warehouse or sold from the seller's warehouse.
+			//   - false — the attribute is not aspect and can be changed at any time
+			IsAspect bool `json:"is_aspect"`
+
+			// Indicates that the characteristic is a set of values:
+			//   - true — the characteristic is a set of values,
+			//   - false — the characteristic consists of a single value
+			IsCollection bool `json:"is_collection"`
+
+			// Indicates that the characteristic is mandatory:
+			//   - true — a mandatory characteristic,
+			//   - false — you can leave the characteristic out
+			IsRequired bool `json:"is_required"`
+
+			// Name
+			Name string `json:"name"`
+
+			// Characteristic type
+			Type string `json:"type"`
+		} `json:"attributes"`
+
+		// Category identifier
+		CategoryId int64 `json:"category_id"`
+	} `json:"result"`
+}
+
+// Getting characteristics for specified product category.
+//
+// Pass up to 20 category identifiers in the `category_id` list.
+//
+// You can check whether the attribute has a nested directory by the `dictionary_id` parameter.
+// The 0 value means there is no directory. If the value is different, then there are directories.
+// You can get them using the `/v2/category/attribute/values` method
+func (c Categories) Attributes(params *GetCategoryAttributesParams) (*GetCategoryAttributesResponse, error) {
+	url := "/v3/category/attribute"
+
+	resp := &GetCategoryAttributesResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type GetAttributeDictionaryParams struct {
+	// Characteristics identifier
+	AttributeId int64 `json:"attribute_id"`
+
+	// Category identifier
+	CategoryId int64 `json:"category_id"`
+
+	// Response language
+	// The default language is Russian
+	Language Language `json:"language" default:"DEFAULT"`
+
+	LastValueId int64 `json:"last_value_id"`
+
+	// Number of values in the response:
+	//   - maximum — 5000
+	//   - minimum — 1
+	Limit int64 `json:"limit"`
+}
+
+type GetAttributeDictionaryResponse struct {
+	core.CommonResponse
+
+	HasNext bool `json:"has_next"`
+
+	// Method result
+	Result []struct {
+		Id      int64  `json:"id"`
+		Info    string `json:"info"`
+		Picture string `json:"picture"`
+
+		// Product characteristic value
+		Value string `json:"value"`
+	} `json:"result"`
+}
+
+// You can use the `/v3/category/attribute` method to check if an attribute has a nested directory.
+// If there are directories, get them using this method
+func (c Categories) AttributesDictionary(params *GetAttributeDictionaryParams) (*GetAttributeDictionaryResponse, error) {
+	url := "/v2/category/attribute/values"
+
+	resp := &GetAttributeDictionaryResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}

ozon/categories_test.go

@@ -0,0 +1,217 @@
+package ozon
+
+import (
+	"net/http"
+	"testing"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+func TestGetProductTree(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *GetProductTreeParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&GetProductTreeParams{
+				CategoryId: 17034410,
+			},
+			`{
+				"result": [
+				  {
+					"category_id": 17034410,
+					"title": "Развивающие игрушки",
+					"children": []
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&GetProductTreeParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Categories().Tree(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result) > 0 {
+				if resp.Result[0].CategoryId != test.params.CategoryId {
+					t.Errorf("First category ids in request and response are not equal")
+				}
+			}
+		}
+	}
+}
+
+func TestGetCategoryAttributes(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *GetCategoryAttributesParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&GetCategoryAttributesParams{
+				CategoryId: []int64{17034410},
+			},
+			`{
+				"result": [
+				  {
+					"category_id": 17034410,
+					"attributes": [
+					  {
+						"id": 85,
+						"name": "Бренд",
+						"description": "Укажите наименование бренда, под которым произведен товар. Если товар не имеет бренда, используйте значение \"Нет бренда\"",
+						"type": "String",
+						"is_collection": false,
+						"is_required": true,
+						"group_id": 0,
+						"group_name": "",
+						"dictionary_id": 28732849
+					  }
+					]
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&GetCategoryAttributesParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Categories().Attributes(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result) != len(test.params.CategoryId) {
+				t.Errorf("Length of categories in request and response are not equal")
+			}
+			if len(resp.Result) > 0 {
+				if resp.Result[0].CategoryId != test.params.CategoryId[0] {
+					t.Errorf("Category ids in request and response are not equal")
+				}
+			}
+		}
+	}
+}
+
+func TestGetAttributeDictionary(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *GetAttributeDictionaryParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&GetAttributeDictionaryParams{
+				AttributeId: 10096,
+				CategoryId:  17028968,
+				LastValueId: 0,
+				Limit:       3,
+			},
+			`{
+				"result": [
+				  {
+					"id": 61571,
+					"value": "белый",
+					"info": "",
+					"picture": ""
+				  },
+				  {
+					"id": 61572,
+					"value": "прозрачный",
+					"info": "",
+					"picture": ""
+				  },
+				  {
+					"id": 61573,
+					"value": "бежевый",
+					"info": "",
+					"picture": ""
+				  }
+				],
+				"has_next": true
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&GetAttributeDictionaryParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Categories().AttributesDictionary(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result) > int(test.params.Limit) {
+				t.Errorf("Length of response result is bigger than limit")
+			}
+		}
+	}
+}

ozon/certificates.go

@@ -0,0 +1,543 @@
+package ozon
+
+import (
+	"net/http"
+	"time"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+type Certificates struct {
+	client *core.Client
+}
+
+type ListOfAccordanceTypesResponse struct {
+	core.CommonResponse
+
+	// Accordance types
+	Result struct {
+		// Main accordance types
+		Base []struct {
+			// Accordance type code
+			Code string `json:"code"`
+
+			// Accordance type description
+			Title string `json:"title"`
+		} `json:"base"`
+
+		// Main accordance types related to dangerous products
+		Hazard []struct {
+			// Accordance type code
+			Code string `json:"code"`
+
+			// Accordance type description
+			Title string `json:"title"`
+		} `json:"hazard"`
+	} `json:"result"`
+}
+
+// List of accordance types (version 2)
+func (c Certificates) ListOfAccordanceTypes() (*ListOfAccordanceTypesResponse, error) {
+	url := "/v2/product/certificate/accordance-types/list"
+
+	resp := &ListOfAccordanceTypesResponse{}
+
+	response, err := c.client.Request(http.MethodGet, url, nil, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type DirectoryOfDocumentTypesResponse struct {
+	core.CommonResponse
+
+	// List of certificate types and names
+	Result []struct {
+		// Certificate name
+		Name string `json:"name"`
+
+		// Certificate type
+		Value string `json:"value"`
+	} `json:"result"`
+}
+
+// Directory of document types
+func (c Certificates) DirectoryOfDocumentTypes() (*DirectoryOfDocumentTypesResponse, error) {
+	url := "/v1/product/certificate/types"
+
+	resp := &DirectoryOfDocumentTypesResponse{}
+
+	response, err := c.client.Request(http.MethodGet, url, nil, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ListOfCertifiedCategoriesParams struct {
+	// Number of the page returned in the query
+	Page int32 `json:"page"`
+
+	// Number of elements on the page
+	PageSize int32 `json:"page_size"`
+}
+
+type ListOfCertifiedCategoriesResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// Certified categories details
+		Certification []struct {
+			// Category name
+			CategoryName string `json:"category_name"`
+
+			// Indication of a mandatory category
+			IsRequired bool `json:"is_required"`
+		} `json:"certification"`
+
+		// Total number of categories
+		Total int64 `json:"total"`
+	} `json:"reult"`
+}
+
+// List of certified categories
+func (c Certificates) ListOfCertifiedCategories(params *ListOfCertifiedCategoriesParams) (*ListOfCertifiedCategoriesResponse, error) {
+	url := "/v1/product/certificate/types"
+
+	resp := &ListOfCertifiedCategoriesResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type LinkCertificateToProductParams struct {
+	// Certificate identifier that was assigned when it was uploaded
+	CertificateId int64 `json:"certificate_id"`
+
+	// An array of product identifiers that this certificate applies to
+	ProductId []int64 `json:"product_id"`
+}
+
+type LinkCertificateToProductResponse struct {
+	core.CommonResponse
+
+	// The result of processing the request. true if the request was executed without errors
+	Result bool `json:"result"`
+}
+
+// Link the certificate to the product
+func (c Certificates) LinkToProduct(params *LinkCertificateToProductParams) (*LinkCertificateToProductResponse, error) {
+	url := "/v1/product/certificate/bind"
+
+	resp := &LinkCertificateToProductResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type DeleteCertificateParams struct {
+	// Certificate identifier
+	CertificateId int32 `json:"certificate_id"`
+}
+
+type DeleteCertificateResponse struct {
+	core.CommonResponse
+
+	// Result of deleting the certificate
+	Result struct {
+		// Indication that a certificate has been deleted:
+		//   - true — deleted
+		//   - false — not deleted
+		IsDelete bool `json:"is_delete"`
+
+		// Description of errors during certificate deletion
+		ErrorMessage string `json:"error_message"`
+	} `json:"result"`
+}
+
+// Delete certificate
+func (c Certificates) Delete(params *DeleteCertificateParams) (*DeleteCertificateResponse, error) {
+	url := "/v1/product/certificate/delete"
+
+	resp := &DeleteCertificateResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type GetCertificateInfoParams struct {
+	// Certificate identifier
+	CertificateNumber string `json:"certificate_number"`
+}
+
+type GetCertificateInfoResponse struct {
+	core.CommonResponse
+
+	// Certificate information
+	Result struct {
+		// Identifier
+		CertificateId int32 `json:"certificate_id"`
+
+		// Number
+		CertificateNumber string `json:"certificate_number"`
+
+		// Name
+		CertificateName string `json:"certificate_name"`
+
+		// Type
+		TypeCode string `json:"type_code"`
+
+		// Status
+		StatusCode string `json:"status_code"`
+
+		// Accordance type
+		AccordanceTypeCode string `json:"accordance_type_code"`
+
+		// Certificate rejection reason
+		RejectionReasonCode string `json:"rejectio_reason_code"`
+
+		// Moderator's comment
+		VerificationComment string `json:"verification_comment"`
+
+		// Issue date
+		IssueDate time.Time `json:"issue_date"`
+
+		// Expire date
+		ExpireDate time.Time `json:"expire_date"`
+
+		// Number of products associated with a certificate
+		ProductsCount int32 `json:"products_count"`
+	} `json:"result"`
+}
+
+// Certificate information
+func (c Certificates) GetInfo(params *GetCertificateInfoParams) (*GetCertificateInfoResponse, error) {
+	url := "/v1/product/certificate/info"
+
+	resp := &GetCertificateInfoResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ListCertificatesParams struct {
+	// Product identifier associated with the certificate.
+	// Pass the parameter if you need certificates that certain products are associated with
+	OfferId string `json:"offer_id"`
+
+	// Certificate status. Pass the parameter if you need certificates with a certain status
+	Status string `json:"status"`
+
+	// Certificate type. Pass the parameter if you need certificates with a certain type
+	Type string `json:"type"`
+
+	// Page from which the list should be displayed. The minimum value is 1
+	Page int32 `json:"page"`
+
+	// Number of objects on the page. The value is from 1 to 1000
+	PageSize int32 `json:"page_size"`
+}
+
+type ListCertificatesResponse struct {
+	core.CommonResponse
+
+	// Certificates
+	Result struct {
+		// Сertificate information
+		Certificates []struct {
+			// Identifier
+			CertificateId int32 `json:"certificate_id"`
+
+			// Number
+			CertificateNumber string `json:"certificate_number"`
+
+			// Name
+			CertificateName string `json:"certificate_name"`
+
+			// Type
+			TypeCode string `json:"type"`
+
+			// Status
+			StatusCode string `json:"status_code"`
+
+			// Accordance type
+			AccordanceTypecode string `json:"accordance_type_code"`
+
+			// Certificate rejection reason
+			RejectionReasonCode string `json:"rejectio_reason_code"`
+
+			// Moderator's comment
+			VerificationComment string `json:"verification_comment"`
+
+			// Issue date
+			IssueDate time.Time `json:"issue_data"`
+
+			// Expire date
+			ExpireDate time.Time `json:"expire_date"`
+
+			// Number of products associated with a certificate
+			ProductsCount int32 `json:"products_count"`
+		} `json:"certificates"`
+
+		// Number of pages
+		PageCount int32 `json:"page_count"`
+	} `json:"result"`
+}
+
+// Certificates list
+func (c Certificates) List(params *ListCertificatesParams) (*ListCertificatesResponse, error) {
+	url := "/v1/product/certificate/list"
+
+	resp := &ListCertificatesResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ProductStatusesResponse struct {
+	core.CommonResponse
+
+	// Product statuses
+	Result []struct {
+		// Product status code when linking it to the certificate
+		Code string `json:"code"`
+
+		// Status description
+		Name string `json:"name"`
+	} `json:"result"`
+}
+
+func (c Certificates) ProductStatuses() (*ProductStatusesResponse, error) {
+	url := "/v1/product/certificate/list"
+
+	resp := &ProductStatusesResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ListProductsForCertificateParams struct {
+	// Certificate identifier
+	CertificateId int32 `json:"certificate_id"`
+
+	// Status of the product verification when binding to a certificate
+	ProductStatusCode string `json:"product_status_code"`
+
+	// Page from which the list should be displayed. The minimum value is 1
+	Page int32 `json:"page"`
+
+	// Number of objects on the page. The value is from 1 to 1000
+	PageSize int32 `json:"page_size"`
+}
+
+type ListProductsForCertificateResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// List of products
+		Items []struct {
+			// Product identifier
+			ProductId int64 `json:"product_id"`
+
+			// Status of the product processing when binding to a certificate
+			ProductStatusCode string `json:"product_status_code"`
+		} `json:"items"`
+
+		// Number of products found
+		Count int64 `json:"count"`
+	} `json:"result"`
+}
+
+// A method for getting a list of possible statuses of products when binding them to a certificate
+func (c Certificates) ListProductsForCertificate(params *ListProductsForCertificateParams) (*ListProductsForCertificateResponse, error) {
+	url := "/v1/product/certificate/products/list"
+
+	resp := &ListProductsForCertificateResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type UnlinkFromProductParams struct {
+	// Certificate identifier
+	CertificateId int32 `json:"certificate_id"`
+
+	// List of product identifiers that you want to unbind from a certificate
+	ProductId []int64 `json:"product_id"`
+}
+
+type UnlinkFromProductResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result []struct {
+		// Error message when unbinding a product
+		Error string `json:"error"`
+
+		// Product identifier
+		ProductId int64 `json:"product_id"`
+
+		// Indication that the product was unbound from a certificate:
+		//   - true — it was unbound,
+		//   - false — it is still bound
+		Updated bool `json:"updated"`
+	} `json:"result"`
+}
+
+// Unbind products from a certificate
+func (c Certificates) UnlinkFromProduct(params *UnlinkFromProductParams) (*UnlinkFromProductResponse, error) {
+	url := "/v1/product/certificate/unbind"
+
+	resp := &UnlinkFromProductResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type PossibleRejectReasonsResponse struct {
+	core.CommonResponse
+
+	// Certificate rejection reasons
+	Result []struct {
+		// Сode of a certificate rejection reason
+		Code string `json:"code"`
+
+		// Description of a certificate rejection reason
+		Name string `json:"name"`
+	} `json:"result"`
+}
+
+// Possible certificate rejection reasons
+func (c Certificates) PossibleRejectReasons() (*PossibleRejectReasonsResponse, error) {
+	url := "/v1/product/certificate/rejection_reasons/list"
+
+	resp := &PossibleRejectReasonsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type PossibleStatusesResponse struct {
+	core.CommonResponse
+
+	// Possible certificate statuses
+	Result []struct {
+		// Certificate status code
+		Code string `json:"code"`
+
+		// Status description
+		Name string `json:"name"`
+	} `json:"result"`
+}
+
+func (c Certificates) PossibleStatuses() (*PossibleStatusesResponse, error) {
+	url := "/v1/product/certificate/status/list"
+
+	resp := &PossibleStatusesResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type AddCertificatesForProductsParams struct {
+	// Array of certificates for the product. Valid extensions are jpg, jpeg, png, pdf
+	Files []byte `json:"files"`
+
+	// Certificate name. No more than 100 characters
+	Name string `json:"name"`
+
+	// Certificate number. No more than 100 characters
+	Number string `json:"number"`
+
+	// Certificate type. To get the list of types, use the GET `/v1/product/certificate/types` method
+	TypeCode string `json:"type_code"`
+
+	// Accordance type. To get the list of types, use the GET `/v1/product/certificate/accordance-types` method
+	AccordanceTypeCode string `json:"accordance_type_code"`
+
+	// Issue date of the certificate
+	IssueDate time.Time `json:"issue_date"`
+
+	// Expiration date of the certificate. Can be empty for permanent certificates
+	ExpireDate time.Time `json:"expire_date"`
+}
+
+type AddCertificatesForProductsResponse struct {
+	core.CommonResponse
+
+	Id int `json:"id"`
+}
+
+// Adding certificates for products
+func (c Certificates) AddForProducts(params *AddCertificatesForProductsParams) (*AddCertificatesForProductsResponse, error) {
+	url := "/v1/product/certificate/create"
+
+	resp := &AddCertificatesForProductsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, map[string]string{
+		"Content-Type": "multipart/form-data",
+	})
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}

ozon/certificates_test.go

@@ -0,0 +1,707 @@
+package ozon
+
+import (
+	"net/http"
+	"testing"
+	"time"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+func TestListOfAccordanceTypes(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			`{
+				"result": {
+				  "base": [
+					{
+					  "code": "string",
+					  "title": "string"
+					}
+				  ],
+				  "hazard": [
+					{
+					  "code": "string",
+					  "title": "string"
+					}
+				  ]
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().ListOfAccordanceTypes()
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestDirectoryOfDocumentTypes(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			`{
+				"result": [
+				  {
+					"name": "Сертификат соответствия",
+					"value": "certificate_of_conformity"
+				  },
+				  {
+					"name": "Декларация",
+					"value": "declaration"
+				  },
+				  {
+					"name": "Свидетельство о гос регистрации",
+					"value": "certificate_of_registration"
+				  },
+				  {
+					"name": "Регистрационное удостоверение",
+					"value": "registration_certificate"
+				  },
+				  {
+					"name": "Отказное письмо",
+					"value": "refused_letter"
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().DirectoryOfDocumentTypes()
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestListOfCertifiedCategories(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ListOfCertifiedCategoriesParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListOfCertifiedCategoriesParams{
+				Page:     1,
+				PageSize: 100,
+			},
+			`{
+				"result": {
+				  "certification": [
+					{
+					  "is_required": true,
+					  "category_name": "Витаминно-минеральные комплексы для взрослых"
+					}
+				  ],
+				  "total": 1
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListOfCertifiedCategoriesParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().ListOfCertifiedCategories(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestLinkCertificateToProduct(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *LinkCertificateToProductParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&LinkCertificateToProductParams{
+				CertificateId: 50058,
+				ProductId:     []int64{290},
+			},
+			`{
+				"result": true
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&LinkCertificateToProductParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().LinkToProduct(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestDeleteCertificate(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *DeleteCertificateParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&DeleteCertificateParams{
+				CertificateId: 0,
+			},
+			`{
+				"result": {
+				  "is_delete": true,
+				  "error_message": "string"
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&DeleteCertificateParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().Delete(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestGetCertificateInfo(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *GetCertificateInfoParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&GetCertificateInfoParams{
+				CertificateNumber: "certificate number",
+			},
+			`{
+				"result": {
+				  "certificate_id": 0,
+				  "certificate_number": "certificate number",
+				  "certificate_name": "string",
+				  "type_code": "string",
+				  "status_code": "string",
+				  "accordance_type_code": "string",
+				  "rejection_reason_code": "string",
+				  "verification_comment": "string",
+				  "issue_date": "2019-08-24T14:15:22Z",
+				  "expire_date": "2019-08-24T14:15:22Z",
+				  "products_count": 0
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&GetCertificateInfoParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().GetInfo(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.CertificateNumber != test.params.CertificateNumber {
+				t.Errorf("Certificate numbers in request and response are not equal")
+			}
+		}
+	}
+}
+
+func TestListCertificates(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ListCertificatesParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListCertificatesParams{
+				OfferId:  "id",
+				Status:   "some status",
+				Type:     "some type",
+				Page:     1,
+				PageSize: 1,
+			},
+			`{
+				"result": {
+				  "certificates": [
+					{
+					  "certificate_id": 0,
+					  "certificate_number": "string",
+					  "certificate_name": "string",
+					  "type_code": "string",
+					  "status_code": "string",
+					  "accordance_type_code": "string",
+					  "rejection_reason_code": "string",
+					  "verification_comment": "string",
+					  "issue_date": "2019-08-24T14:15:22Z",
+					  "expire_date": "2019-08-24T14:15:22Z",
+					  "products_count": 0
+					}
+				  ],
+				  "page_count": 0
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListCertificatesParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().List(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestProductStatuses(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			`{
+				"result": [
+				  {
+					"code": "string",
+					"name": "string"
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().ProductStatuses()
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestListProductsForCertificate(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ListProductsForCertificateParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListProductsForCertificateParams{
+				CertificateId:     0,
+				ProductStatusCode: "status code",
+				Page:              0,
+				PageSize:          0,
+			},
+			`{
+				"result": {
+				  "items": [
+					{
+					  "product_id": 0,
+					  "product_status_code": "string"
+					}
+				  ],
+				  "count": 0
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListProductsForCertificateParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().ListProductsForCertificate(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestUnlinkFromProduct(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *UnlinkFromProductParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&UnlinkFromProductParams{
+				CertificateId: 0,
+				ProductId:     []int64{0},
+			},
+			`{
+				"result": [
+				  {
+					"error": "string",
+					"product_id": 0,
+					"updated": true
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&UnlinkFromProductParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().UnlinkFromProduct(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestPossibleRejectReasons(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			`{
+				"result": [
+				  {
+					"code": "string",
+					"name": "string"
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().PossibleRejectReasons()
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestPossibleStatuses(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			`{
+				"result": [
+				  {
+					"code": "string",
+					"name": "string"
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().PossibleStatuses()
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestAddCertificatesForProducts(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *AddCertificatesForProductsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&AddCertificatesForProductsParams{
+				Files:              []byte{10, 15, 2, 0},
+				Name:               "Certificate name",
+				Number:             "10a-d5s9-4asdf2",
+				TypeCode:           "declaration",
+				AccordanceTypeCode: "gost",
+				IssueDate:          time.Now(),
+				ExpireDate:         time.Now(),
+			},
+			`{
+				"id": 50058
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&AddCertificatesForProductsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Certificates().AddForProducts(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}

ozon/chats.go

@@ -0,0 +1,390 @@
+package ozon
+
+import (
+	"net/http"
+	"time"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+type Chats struct {
+	client *core.Client
+}
+
+type ListChatsParams struct {
+	// Chats filter
+	Filter ListChatsFilter `json:"filter"`
+
+	// Number of values in the response. Default value is 1
+	Limit int64 `json:"limit" default:"1"`
+
+	// Number of elements that will be skipped in the response.
+	// For example, if offset=10, the response will start with the 11th element found
+	Offset int64 `json:"offset"`
+}
+
+type ListChatsFilter struct {
+	// Filter by chat status:
+	//   - All
+	//   - Opened
+	//   - Closed
+	ChatStatus string `json:"chat_status" default:"ALL"`
+
+	// Filter by chats with unread messages
+	UnreadOnly bool `json:"unread_only"`
+}
+
+type ListChatsResponse struct {
+	core.CommonResponse
+
+	// Chats data
+	Chats []struct {
+		// Chat data
+		Chat struct {
+			// Chat identifier
+			ChatId string `json:"chat_id"`
+
+			// Chat status:
+			//   - All
+			//   - Opened
+			//   - Closed
+			ChatStatus string `json:"chat_status"`
+
+			// Chat type:
+			//   - Seller_Support — support chat
+			//   - Buyer_Seller — chat with a customer
+			ChatType string `json:"chat_type"`
+
+			// Chat creation date
+			CreatedAt time.Time `json:"created_at"`
+		} `json:"chat"`
+
+		// Identifier of the first unread chat message
+		FirstUnreadMessageId string `json:"first_unread_message_id"`
+
+		// Identifier of the last message in the chat
+		LastMessageId string `json:"last_message_id"`
+
+		// Number of unread messages in the chat
+		UnreadCount int64 `json:"unread_count"`
+	} `json:"chats"`
+
+	// Total number of chats
+	TotalChatsCount int64 `json:"total_chats_count"`
+
+	// Total number of unread messages
+	TotalUnreadCount int64 `json:"total_unread_count"`
+}
+
+// Returns information about chats by specified filters
+func (c Chats) List(params *ListChatsParams) (*ListChatsResponse, error) {
+	url := "/v2/chat/list"
+
+	resp := &ListChatsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type SendMessageParams struct {
+	// Chat identifier
+	ChatId string `json:"chat_id"`
+
+	// Message text in the plain text format
+	Text string `json:"text"`
+}
+
+type SendMessageResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result string `json:"result"`
+}
+
+// Sends a message to an existing chat by its identifier
+func (c Chats) SendMessage(params *SendMessageParams) (*SendMessageResponse, error) {
+	url := "/v1/chat/send/message"
+
+	resp := &SendMessageResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type SendFileParams struct {
+	// File as a base64 string
+	Base64Content string `json:"base64_content"`
+
+	// Chat identifier
+	ChatId string `json:"chat_id"`
+
+	// File name with extension
+	Name string `json:"name"`
+}
+
+type SendFileResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result string `json:"result"`
+}
+
+// Sends a file to an existing chat by its identifier
+func (c Chats) SendFile(params *SendFileParams) (*SendFileResponse, error) {
+	url := "/v1/chat/send/file"
+
+	resp := &SendFileResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ChatHistoryParams struct {
+	// Chat idenitifier
+	ChatId string `json:"chat_id"`
+
+	// Messages sorting direction:
+	//   - Forward—from old messages to new ones.
+	//   - Backward—from new messages to old ones.
+	// The default value is `Backward`. You can set the number of messages in the limit parameter
+	Direction string `json:"direction" default:"Backward"`
+
+	// Identifier of the message from which the chat history will be displayed.
+	// Default value is the last visible message
+	FromMessageId string `json:"from_message_id"`
+
+	// Number of messages in the response. The default value is 50
+	Limit int64 `json:"limit" default:"50"`
+}
+
+type ChatHistoryResponse struct {
+	core.CommonResponse
+
+	// Indicates that the response returned only a part of messages
+	HasNext bool `json:"has_next"`
+
+	// An array of messages sorted according to the direction parameter in the request body
+	Messages []struct {
+		// Message creation date
+		CreatedAt time.Time `json:"created_at"`
+
+		// Array with message content in Markdown format
+		Data []string `json:"data"`
+
+		// Indication of the read message
+		IsRead bool `json:"is_read"`
+
+		// Message identifier
+		MessageId string `json:"message_id"`
+
+		// Chat participant identifier
+		User struct {
+			// Chat participant identifier
+			Id string `json:"id"`
+
+			// Chat participant type:
+			//   - customer
+			//   - seller
+			//   - crm—system messages
+			//   - courier
+			//   - support
+			Type string `json:"type"`
+		} `json:"user"`
+	} `json:"messages"`
+}
+
+// Chat history
+func (c Chats) History(params *ChatHistoryParams) (*ChatHistoryResponse, error) {
+	url := "/v2/chat/history"
+
+	resp := &ChatHistoryResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type UpdateChatParams struct {
+	// Chat identifier
+	ChatId string `json:"chat_id"`
+
+	// Message identifier
+	FromMessageId uint64 `json:"from_message_id"`
+
+	// Number of messages in the response
+	Limit int64 `json:"limit"`
+}
+
+type UpdateChatResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result []struct {
+		// An order or a product user wrote about in the chat
+		Context struct {
+			// Product inforamtion
+			Item struct {
+				// Product identifier in the Ozon system, SKU
+				SKU int64 `json:"sku"`
+			} `json:"item"`
+
+			// Order information
+			Order struct {
+				// Order number
+				OrderNumber string `json:"order_number"`
+
+				// Shipment information
+				Postings []struct {
+					// Delivery scheme:
+					//   - FBO
+					//   - FBS
+					//   - RFBS
+					//   - Crossborder
+					DeliverySchema string `json:"delivery_schema"`
+
+					// Shipment number
+					PostingNumber string `json:"posting_number"`
+
+					// List of product identifiers in the shipment
+					SKUList []int64 `json:"sku_list"`
+				} `json:"postings"`
+			} `json:"order"`
+		} `json:"context"`
+
+		// Creation date and time
+		CreatedAt time.Time `json:"created_at"`
+
+		// Information about the file in the chat. Displayed only for `type = file`
+		File struct {
+			// File type
+			Mime string `json:"mime"`
+
+			// File name
+			Name string `json:"name"`
+
+			// File size in bytes
+			Size int64 `json:"size"`
+
+			// File URL
+			URL string `json:"url"`
+		} `json:"file"`
+
+		// File identifier
+		Id uint64 `json:"id"`
+
+		// Message. Displayed only for `type = text`
+		Text string `json:"text"`
+
+		// Message type:
+		//   - text
+		//   - file
+		Type string `json:"type"`
+
+		// Chat participant information
+		User struct {
+			// Chat participant identifier
+			Id string `json:"id"`
+
+			// Chat participant chat:
+			//   - customer
+			//   - seller
+			//   - crm—system messages
+			//   - courier
+			Type string `json:"type"`
+		} `json:"user"`
+	} `json:"result"`
+}
+
+// Update chat
+func (c Chats) Update(params *UpdateChatParams) (*UpdateChatResponse, error) {
+	url := "/v1/chat/updates"
+
+	resp := &UpdateChatResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type CreateNewChatParams struct {
+	// Shipment identifier
+	PostingNumber string `json:"posting_number"`
+}
+
+type CreateNewChatResponse struct {
+	core.CommonResponse
+
+	//Method result
+	Result struct {
+		// Chat identifier
+		ChatId string `json:"chat_id"`
+	} `json:"result"`
+}
+
+// Creates a new chat on the shipment with the customer. For example, to clarify the address or the product model
+func (c Chats) Create(params *CreateNewChatParams) (*CreateNewChatResponse, error) {
+	url := "/v1/chat/start"
+
+	resp := &CreateNewChatResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type MarkAsReadParams struct {
+	// Chat identifier
+	Chatid string `json:"chat_id"`
+
+	// Message identifier
+	FromMessageId uint64 `json:"from_message_id"`
+}
+
+type MarkAsReadResponse struct {
+	core.CommonResponse
+
+	// Number of unread messages in the chat
+	UnreadCount int64 `json:"unread_count"`
+}
+
+// A method for marking the selected message and messages before it as read
+func (c Chats) MarkAsRead(params *MarkAsReadParams) (*MarkAsReadResponse, error) {
+	url := "/v2/chat/read"
+
+	resp := &MarkAsReadResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}

ozon/chats_test.go

@@ -0,0 +1,409 @@
+package ozon
+
+import (
+	"net/http"
+	"testing"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+func TestListChats(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ListChatsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListChatsParams{
+				Filter: ListChatsFilter{
+					ChatStatus: "Opened",
+					UnreadOnly: true,
+				},
+				Limit:  1,
+				Offset: 0,
+			},
+			`{
+				"chats": [
+				  {
+					"chat": {
+					  "created_at": "2022-07-22T08:07:19.581Z",
+					  "chat_id": "5e767w03-b400-4y1b-a841-75319ca8a5c8",
+					  "chat_status": "Opened",
+					  "chat_type": "Seller_Support"
+					},
+					"first_unread_message_id": "3000000000118021931",
+					"last_message_id": "30000000001280042740",
+					"unread_count": 1
+				  }
+				],
+				"total_chats_count": 25,
+				"total_unread_count": 5
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListChatsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Chats().List(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Chats) > 0 {
+				if resp.Chats[0].Chat.ChatStatus == "" {
+					t.Errorf("Chat status cannot be empty")
+				}
+				if resp.Chats[0].Chat.ChatType == "" {
+					t.Errorf("Chat type cannot be empty")
+				}
+			}
+		}
+	}
+}
+
+func TestSendMessage(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *SendMessageParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&SendMessageParams{
+				ChatId: "99feb3fc-a474-469f-95d5-268b470cc607",
+				Text:   "test",
+			},
+			`{
+				"result": "success"
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&SendMessageParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Chats().SendMessage(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestSendFile(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *SendFileParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&SendFileParams{
+				ChatId:        "99feb3fc-a474-469f-95d5-268b470cc607",
+				Name:          "tempor",
+				Base64Content: "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNk+A8AAQUBAScY42YAAAAASUVORK5CYII=",
+			},
+			`{
+				"result": "success"
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&SendFileParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Chats().SendFile(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestChatHistory(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ChatHistoryParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ChatHistoryParams{
+				ChatId:        "18b8e1f9-4ae7-461c-84ea-8e1f54d1a45e",
+				Direction:     "Forward",
+				FromMessageId: "3000000000118032000",
+				Limit:         1,
+			},
+			`{
+				"has_next": true,
+				"messages": [
+				  {
+					"message_id": "3000000000817031942",
+					"user": {
+					  "id": "115568",
+					  "type": "Сustomer"
+					},
+					"created_at": "2022-07-18T20:58:04.528Z",
+					"is_read": true,
+					"data": [
+					  "Здравствуйте, у меня вопрос по вашему товару \"Стекло защитное для смартфонов\", артикул 11223. Подойдет ли он на данную [ модель ](https://www.ozon.ru/product/smartfon-samsung-galaxy-a03s-4-64-gb-chernyy) телефона?"
+					]
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ChatHistoryParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Chats().History(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestUpdateChat(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *UpdateChatParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&UpdateChatParams{
+				ChatId:        "99feb3fc-a474-469f-95d5-268b470cc607",
+				FromMessageId: 0,
+				Limit:         1000,
+			},
+			`{
+				"result": [
+				  {
+					"id": 3000000000012735500,
+					"user": {
+					  "id": "15",
+					  "type": "seller"
+					},
+					"type": "file",
+					"text": "",
+					"file": {
+					  "url": "https://cdn-stg.ozonru.me/s3/fs-chat-api/108a0370-4dfa-11ec-bd02-06a332735108.png",
+					  "mime": "image/png",
+					  "size": 68,
+					  "name": "tempor"
+					},
+					"created_at": "2021-11-25T14:14:55Z",
+					"context": null
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&UpdateChatParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Chats().Update(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestCreateNewChat(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *CreateNewChatParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&CreateNewChatParams{
+				PostingNumber: "47873153-0052-1",
+			},
+			`{
+				"result": {
+				  "chat_id": "5969c331-2e64-44b7-8a0e-ff9526762c62"
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&CreateNewChatParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Chats().Create(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.ChatId == "" {
+				t.Errorf("Chat id cannot be empty")
+			}
+		}
+	}
+}
+
+func TestMarkAsRead(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *MarkAsReadParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&MarkAsReadParams{
+				Chatid:        "99feb3fc-a474-469f-95d5-268b470cc607",
+				FromMessageId: 3000000000118032000,
+			},
+			`{
+				"unread_count": 0
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&MarkAsReadParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Chats().MarkAsRead(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}

ozon/common.go

@@ -0,0 +1,315 @@
+package ozon
+
+type Order string
+
+const (
+	Ascending  Order = "ASC"
+	Descending Order = "DESC"
+)
+
+type GetAnalyticsDataFilterOperation string
+
+const (
+	Equal        GetAnalyticsDataFilterOperation = "EQ"
+	Greater      GetAnalyticsDataFilterOperation = "GT"
+	GreaterEqual GetAnalyticsDataFilterOperation = "GTE"
+	Lesser       GetAnalyticsDataFilterOperation = "LT"
+	LesserEqual  GetAnalyticsDataFilterOperation = "LTE"
+)
+
+type GetAnalyticsDataFilterMetric string
+
+const (
+	UnknownMetric         GetAnalyticsDataFilterMetric = "unknown_metric"
+	HitsViewSearch        GetAnalyticsDataFilterMetric = "hits_view_search"
+	HistViewPDP           GetAnalyticsDataFilterMetric = "hits_view_pdp"
+	HitsView              GetAnalyticsDataFilterMetric = "hist_view"
+	HitsToCartSearch      GetAnalyticsDataFilterMetric = "hits_tocart_search"
+	HitsToCartPDP         GetAnalyticsDataFilterMetric = "hits_tocart_pdp"
+	SessionViewSearch     GetAnalyticsDataFilterMetric = "session_view_search"
+	SessionViewPDP        GetAnalyticsDataFilterMetric = "session_view_pdp"
+	SessionView           GetAnalyticsDataFilterMetric = "session_view"
+	ConvToCartSearch      GetAnalyticsDataFilterMetric = "conv_tocart_search"
+	ConvToCartPDP         GetAnalyticsDataFilterMetric = "conv_tocart_pdp"
+	ConvToCart            GetAnalyticsDataFilterMetric = "conv_tocart"
+	Revenue               GetAnalyticsDataFilterMetric = "revenue"
+	ReturnsMetric         GetAnalyticsDataFilterMetric = "returns"
+	CancellationsMetric   GetAnalyticsDataFilterMetric = "cancellations"
+	OrderedUnits          GetAnalyticsDataFilterMetric = "ordered_units"
+	DeliveredUnits        GetAnalyticsDataFilterMetric = "delivered_units"
+	AdvViewPDP            GetAnalyticsDataFilterMetric = "adv_view_pdp"
+	AdvViewSearchCategory GetAnalyticsDataFilterMetric = "adv_view_search_category"
+	AdvViewAll            GetAnalyticsDataFilterMetric = "adv_view_all"
+	AdvSumAll             GetAnalyticsDataFilterMetric = "adv_sum_all"
+	PositionCategory      GetAnalyticsDataFilterMetric = "position_category"
+	PostingsMetric        GetAnalyticsDataFilterMetric = "postings"
+	PostingsPremium       GetAnalyticsDataFilterMetric = "postings_premium"
+)
+
+type WarehouseType string
+
+const (
+	// Ozon warehouses with Fresh delivery
+	ExpressDarkStore WarehouseType = "EXPRESS_DARK_STORE"
+
+	// Ozon warehouses without Fresh delivery
+	NotExressDarkStore WarehouseType = "NOT_EXPRESS_DARK_STORE"
+
+	// All Ozon warehouses
+	ALLWarehouseType WarehouseType = "ALL"
+)
+
+type Language string
+
+const (
+	Default Language = "DEFAULT"
+	Russian Language = "RU"
+	English Language = "EN"
+	Turkish Language = "TR"
+	Chinese Language = "ZH_HANS"
+)
+
+type AttributeType string
+
+const (
+	All      AttributeType = "ALL"
+	Required AttributeType = "REQUIRED"
+	Optional AttributeType = "OPTIONAL"
+)
+
+type ListDiscountRequestsStatus string
+
+const (
+	New            ListDiscountRequestsStatus = "NEW"
+	Seen           ListDiscountRequestsStatus = "SEEN"
+	Approved       ListDiscountRequestsStatus = "APPROVED"
+	PartlyApproved ListDiscountRequestsStatus = "PARTLY_APPROVED"
+	Declined       ListDiscountRequestsStatus = "DECLINED"
+	AutoDeclined   ListDiscountRequestsStatus = "AUTO_DECLINED"
+	DeclinedByUser ListDiscountRequestsStatus = "DECLINED_BY_USER"
+	Coupon         ListDiscountRequestsStatus = "COUPON"
+	Purchased      ListDiscountRequestsStatus = "PURCHASED"
+)
+
+type WorkingDay string
+
+const (
+	Mon WorkingDay = "1"
+	Tue WorkingDay = "2"
+	Wed WorkingDay = "3"
+	Thu WorkingDay = "4"
+	Fri WorkingDay = "5"
+	Sat WorkingDay = "6"
+	Sun WorkingDay = "7"
+)
+
+type GetAnalyticsDataDimension string
+
+const (
+	UnknownDimension   GetAnalyticsDataDimension = "unknownDimension"
+	SKUDimension       GetAnalyticsDataDimension = "sku"
+	SPUDimension       GetAnalyticsDataDimension = "spu"
+	DayDimension       GetAnalyticsDataDimension = "day"
+	WeekDimension      GetAnalyticsDataDimension = "week"
+	MonthDimension     GetAnalyticsDataDimension = "month"
+	YearDimension      GetAnalyticsDataDimension = "year"
+	Category1Dimension GetAnalyticsDataDimension = "category1"
+	Category2Dimension GetAnalyticsDataDimension = "category2"
+	Category3Dimension GetAnalyticsDataDimension = "category3"
+	Category4Dimension GetAnalyticsDataDimension = "category4"
+	BrandDimension     GetAnalyticsDataDimension = "brand"
+	ModelIDDimension   GetAnalyticsDataDimension = "modelID"
+)
+
+type SupplyRequestState string
+
+const (
+	// request draft. Only for supplies via vDC
+	Draft SupplyRequestState = "DRAFT"
+
+	// selecting supply options. Only for supplies via vDC
+	SupplyVariantsArranging SupplyRequestState = "SUPPLY_VARIANTS_ARRANGING"
+
+	// no supply options, the request is archived. Only for supplies via vDC
+	HasNoSupplyVariantsArchive SupplyRequestState = "HAS_NO_SUPPLY_VARIANTS_ARCHIVE"
+
+	// no supply options. Only for supplies via vDC
+	HasNoSupplyVariantsNew SupplyRequestState = "HAS_NO_SUPPLY_VARIANTS_NEW"
+
+	// supply being approved. Only for supplies via vDC
+	SupplyVariantsConfirmation SupplyRequestState = "SUPPLY_VARIANTS_CONFIRMATION"
+
+	// time reservation
+	TimeslotBooking SupplyRequestState = "TIMESLOT_BOOKING"
+
+	// filling in the data
+	DATA_FILLING SupplyRequestState = "DATA_FILLING"
+
+	// ready for shipment
+	ReadyToSupply SupplyRequestState = "READY_TO_SUPPLY"
+
+	// accepted at the shipping point
+	AcceptedAtSupplyWarehouse SupplyRequestState = "ACCEPTED_AT_SUPPLY_WAREHOUSE"
+
+	// on the way
+	InTransit SupplyRequestState = "IN_TRANSIT"
+
+	// acceptance at the warehouse
+	AcceptanceAtStorageWarehouse SupplyRequestState = "ACCEPTANCE_AT_STORAGE_WAREHOUSE"
+
+	// acts being approved
+	ReportsConfirmationAwaiting SupplyRequestState = "REPORTS_CONFIRMATION_AWAITING"
+
+	// dispute
+	ReportRejected SupplyRequestState = "REPORT_REJECTED"
+
+	// completed
+	Completed SupplyRequestState = "COMPLETED"
+
+	// refused acceptance
+	RejectedAtSupplyWarehouse SupplyRequestState = "REJECTED_AT_SUPPLY_WAREHOUSE"
+
+	// cancelled
+	Cancelled SupplyRequestState = "CANCELLED"
+
+	// overdue
+	Overdue SupplyRequestState = "OVERDUE"
+)
+
+type ShipmentStatus string
+
+const (
+	// acceptance is in progress
+	AcceptanceInProgress ShipmentStatus = "acceptance_in_progress"
+
+	// arbitration
+	Arbitration ShipmentStatus = "arbitration"
+
+	// awaiting confirmation
+	AwaitingApprove ShipmentStatus = "awaiting_approve"
+
+	// awaiting shipping
+	AwaitingDeliver ShipmentStatus = "awaiting_deliver"
+
+	// awaiting packaging
+	AwaitingPackaging ShipmentStatus = "awaiting_packaging"
+
+	// created
+	AwaitingVerification ShipmentStatus = "awaiting_verification"
+
+	// cancelled
+	CancelledSubstatus ShipmentStatus = "cancelled"
+
+	// delivered
+	Delivered ShipmentStatus = "delivered"
+
+	// delivery is in progress
+	Delivering ShipmentStatus = "delivering"
+
+	// picked up by driver
+	DriverPickup ShipmentStatus = "driver_pickup"
+
+	// not accepted at the sorting center
+	NotAccepted ShipmentStatus = "not_accepted"
+
+	// sent by the seller
+	SentBySeller ShipmentStatus = "sent_by_seller"
+)
+
+type ShipmentSubstatus string
+
+const (
+	// acceptance in progress
+	PostingAcceptanceInProgress ShipmentStatus = "posting_acceptance_in_progress"
+
+	// arbitrage
+	PostingInArbitration ShipmentStatus = "posting_in_arbitration"
+
+	// created
+	PostingCreated ShipmentStatus = "posting_created"
+
+	// in the freight
+	PostingInCarriage ShipmentStatus = "posting_in_carriage"
+
+	// not added to the freight
+	PostingNotInCarriage ShipmentStatus = "posting_not_in_carriage"
+
+	// registered
+	PostingRegistered ShipmentStatus = "posting_registered"
+
+	// is handed over to the delivery service
+	PostingTransferringToDelivery ShipmentStatus = "posting_transferring_to_delivery"
+
+	// waiting for passport data
+	PostingAwaitingPassportData ShipmentStatus = "posting_awaiting_passport_data"
+
+	// created
+	PostingCreatedSubstatus ShipmentStatus = "posting_created"
+
+	// awaiting registration
+	PostingAwaitingRegistration ShipmentStatus = "posting_awaiting_registration"
+
+	// registration error
+	PostingRegistrationError ShipmentStatus = "posting_registration_error"
+
+	// created
+	PostingSplitPending ShipmentStatus = "posting_split_pending"
+
+	// canceled
+	PostingCancelled ShipmentStatus = "posting_canceled"
+
+	// customer delivery arbitrage
+	PostingInClientArbitration ShipmentStatus = "posting_in_client_arbitration"
+
+	// delivered
+	PostingDelivered ShipmentStatus = "posting_delivered"
+
+	// recieved
+	PostingReceived ShipmentStatus = "posting_received"
+
+	// presumably delivered
+	PostingConditionallyDelivered ShipmentStatus = "posting_conditionally_delivered"
+
+	// courier on the way
+	PostingInCourierService ShipmentStatus = "posting_in_courier_service"
+
+	// at the pick-up point
+	PostingInPickupPoint ShipmentStatus = "posting_in_pickup_point"
+
+	// on the way to the city
+	PostingOnWayToCity ShipmentStatus = "posting_on_way_to_city"
+
+	// on the way to the pick-up point
+	PostingOnWayToPickupPoint ShipmentStatus = "posting_on_way_to_pickup_point"
+
+	// returned to the warehouse
+	PostingReturnedToWarehouse ShipmentStatus = "posting_returned_to_warehouse"
+
+	// is handed over to the courier
+	PostingTransferredToCourierService ShipmentStatus = "posting_transferred_to_courier_service"
+
+	// handed over to the driver
+	PostingDriverPickup ShipmentStatus = "posting_driver_pick_up"
+
+	// not accepted at the sorting center
+	PostingNotInSortCenter ShipmentStatus = "posting_not_in_sort_center"
+
+	// sent by the seller
+	SentBySellerSubstatus ShipmentStatus = "sent_by_seller"
+)
+
+type TPLIntegrationType string
+
+const (
+	// delivery by the Ozon logistics
+	OzonTPLType TPLIntegrationType = "ozon"
+
+	// delivery by a third-party service, Ozon registers the order
+	AggregatorTPLType TPLIntegrationType = "aggregator"
+
+	// delivery by a third-party service, the seller registers the order
+	TrackingTPLType TPLIntegrationType = "3pl_tracking"
+
+	// delivery by the seller
+	NonIntegratedTPLType TPLIntegrationType = "non_integrated"
+)

ozon/fbo.go

@@ -99,19 +99,7 @@ type GetFBOShipmentsListResponse struct {
 		CreatedAt time.Time `json:"created_at"`
 
 		// Financial data
-		FinancialData struct {
-			// Identifier of the cluster, where the shipment is sent from
-			ClusterFrom string `json:"cluster_from"`
-
-			// Identifier of the cluster, where the shipment is delivered to
-			ClusterTo string `json:"cluster_to"`
-
-			// Services
-			PostingServices MarketplaceServices `json:"posting_services"`
-
-			// Products list
-			Products []FinancialDataProduct `json:"products"`
-		} `json:"financial_data"`
+		FinancialData FBOFinancialData `json:"financial_data"`
 
 		// Date and time of shipment processing start
 		InProccessAt time.Time `json:"in_process_at"`
@@ -126,7 +114,14 @@ type GetFBOShipmentsListResponse struct {
 		PostingNumber string `json:"posting_number"`
 
 		// Number of products in the shipment
-		Products []struct {
+		Products []FBOPostingProduct `json:"products"`
+
+		// Shipment status
+		Status string `json:"status"`
+	} `json:"result"`
+}
+
+type FBOPostingProduct struct {
 	// Activation codes for services and digital products
 	DigitalCodes []string `json:"digital_codes"`
 
@@ -147,20 +142,327 @@ type GetFBOShipmentsListResponse struct {
 
 	// Product identifier in the Ozon system, SKU
 	SKU int64 `json:"sku"`
-		} `json:"products"`
+}
 
-		// Shipment status
-		Status string `json:"status"`
-	} `json:"result"`
+type FBOFinancialData struct {
+	// Identifier of the cluster, where the shipment is sent from
+	ClusterFrom string `json:"cluster_from"`
+
+	// Identifier of the cluster, where the shipment is delivered to
+	ClusterTo string `json:"cluster_to"`
+
+	// Services
+	PostingServices MarketplaceServices `json:"posting_services"`
+
+	// Products list
+	Products []FinancialDataProduct `json:"products"`
 }
 
 // Returns a list of shipments for a specified period of time. You can additionally filter the shipments by their status
-func (c FBO) GetFBOShipmentsList(params *GetFBOShipmentsListParams) (*GetFBOShipmentsListResponse, error) {
+func (c FBO) GetShipmentsList(params *GetFBOShipmentsListParams) (*GetFBOShipmentsListResponse, error) {
 	url := "/v2/posting/fbo/list"
 
 	resp := &GetFBOShipmentsListResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type GetShipmentDetailsParams struct {
+	// Shipment number
+	PostingNumber string `json:"posting_number"`
+
+	// true if the address transliteration from Cyrillic to Latin is enabled
+	Translit bool `json:"translit"`
+
+	// Additional fields to add to the response
+	With GetShipmentDetailsWith `json:"with"`
+}
+
+type GetShipmentDetailsWith struct {
+	// Specify true to add analytics data to the response
+	AnalyticsData bool `json:"analytics_data"`
+
+	// Specify true to add financial data to the response
+	FinancialData bool `json:"financial_data"`
+}
+
+type GetShipmentDetailsResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// Additional data
+		AdditionalData []struct {
+			Key   string `json:"key"`
+			Value string `json:"value"`
+		} `json:"additional_data"`
+
+		// Analytical data
+		AnalyticsData struct {
+			// Delivery city
+			City string `json:"Delivery city"`
+
+			// Delivery method
+			DeliveryType string `json:"delivery_type"`
+
+			// Indication that the recipient is a legal person:
+			//   - true — a legal person
+			//   - false — a natural person
+			IsLegal bool `json:"is_legal"`
+
+			// Premium subscription
+			IsPremium bool `json:"is_premium"`
+
+			// Payment method
+			PaymentTypeGroupName string `json:"payment_type_group_name"`
+
+			// Delivery region
+			Region string `json:"region"`
+
+			// Warehouse identifier
+			WarehouseId int64 `json:"warehouse_id"`
+
+			// Name of the warehouse from which the order is shipped
+			WarehouseName string `json:"warehouse_name"`
+		} `json:"analytics_data"`
+
+		// Shipment cancellation reason identifier
+		CancelReasonId int64 `json:"cancel_reason_id"`
+
+		// Date and time of shipment creation
+		CreatedAt time.Time `json:"created_at"`
+
+		// Financial data
+		FinancialData FBOFinancialData `json:"financial_data"`
+
+		// Date and time of shipment processing start
+		InProcessAt time.Time `json:"in_process_at"`
+
+		// Identifier of the order to which the shipment belongs
+		OrderId int64 `json:"order_id"`
+
+		// Number of the order to which the shipment belongs
+		OrderNumber string `json:"order_number"`
+
+		// Shipment number
+		PostingNumber string `json:"posting_number"`
+
+		// Number of products in the shipment
+		Products []FBOPostingProduct `json:"products"`
+
+		// Shipment status
+		Status string `json:"status"`
+	} `json:"result"`
+}
+
+// Returns information about the shipment by its identifier
+func (c FBO) GetShipmentDetails(params *GetShipmentDetailsParams) (*GetShipmentDetailsResponse, error) {
+	url := "/v2/posting/fbo/get"
+
+	resp := &GetShipmentDetailsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ListSupplyRequestsParams struct {
+	// Number of the page returned in the request
+	Page int32 `json:"page"`
+
+	// Number of elements on the page
+	PageSize int32 `json:"page_size"`
+
+	// Filter on status of a supply by request
+	States []SupplyRequestState `json:"states"`
+}
+
+type ListSupplyRequestsResponse struct {
+	core.CommonResponse
+
+	// Indicates that the response contains not the entire array of supply requests:
+	//   - true — make a new request with a different page and page_size values to get information on the remaining requests;
+	//   - false — the entire array of requests for the filter specified in the request was returned in the response
+	HasNext bool `json:"has_next"`
+
+	// Supply requests list
+	SupplyOrders []SupplyRequestCommonResponse `json:"supply_orders"`
+
+	// Total requests number
+	TotalSupplyOrdersCount int32 `json:"total_supply_orders_count"`
+}
+
+type SupplyRequestCommonResponse struct {
+	// Supply request creation date
+	CreatedAt string `json:"created_at"`
+
+	// Local time supply interval
+	LocalTimeslot struct {
+		// Interval start
+		From string `json:"from"`
+
+		// Interval end
+		To string `json:"to"`
+	} `json:"local_timeslot"`
+
+	// Date from which you want to bring the supply to the warehouse. Only for supplies via vDC
+	PreferredSupplyDataFrom string `json:"preferred_supply_data_from"`
+
+	// Date by which you want to bring the supply to the warehouse. Only for supplies via vDC
+	PreferredSupplyDataTo string `json:"preferred_supply_data_to"`
+
+	// Status of a supply by request
+	State string `json:"state"`
+
+	// Supply request identifier
+	SupplyOrderId int64 `json:"supply_order_id"`
+
+	// Supply request number
+	SupplyOrderNumber string `json:"supply_order_number"`
+
+	// Supply warehouse
+	SupplyWarehouse struct {
+		// Warehouse address
+		Address string `json:address"`
+
+		// Warehouse name
+		Name string `json:"name"`
+
+		// Warehouse identifier
+		WarehouseId int64 `json:"warehouse_id"`
+	} `json:"supply_warehouse"`
+
+	// time_left_to_prepare_supply
+	TimeLeftToPrepareSupply int64 `json:"time_left_to_prepare_supply"`
+
+	// Time in seconds left to select the supply option. Only for supplies via vDC
+	TimeLeftToSelectSupplyVariant int64 `json:"time_left_to_select_supply_variant"`
+
+	// total_items_count
+	TotalItemsCount int32 `json:"total_items_count"`
+
+	// Total number of items in the request
+	TotalQuantity int32 `json:"total_quantity"`
+}
+
+// Method for getting a list of supply requests to the Ozon warehouse.
+// Requests with supply both to a specific warehouse and via a virtual
+// distribution center (vDC) are taken into account
+func (c FBO) ListSupplyRequests(params *ListSupplyRequestsParams) (*ListSupplyRequestsResponse, error) {
+	url := "/v1/supply-order/list"
+
+	resp := &ListSupplyRequestsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type GetSupplyRequestInfoParams struct {
+	// Supply request identifier
+	SupplyOrderId int64 `json:"supply_order_id"`
+}
+
+type GetSupplyRequestInfoResponse struct {
+	core.CommonResponse
+
+	SupplyRequestCommonResponse
+
+	// Driver and car information
+	VehicleInfo struct {
+		// Driver name
+		DriverName string `json:"driver_name"`
+
+		// Driver phone number
+		DriverPhone string `json:"driver_phone"`
+
+		// Car model
+		VehicleModel string `json:"vehicle_model"`
+
+		// Car number
+		VehicleNumber string `json:"vehicle_number"`
+	} `json:"vehicle_info"`
+}
+
+// Method for getting detailed information on a supply request.
+// Requests with supply both to a specific warehouse and via a
+// virtual distribution center (vDC) are taken into account
+func (c FBO) GetSupplyRequestInfo(params *GetSupplyRequestInfoParams) (*GetSupplyRequestInfoResponse, error) {
+	url := "/v1/supply-order/get"
+
+	resp := &GetSupplyRequestInfoResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ListProductsInSupplyRequestParams struct {
+	// Number of the page returned in the query
+	Page int32 `json:"page"`
+
+	// Number of elements on the page
+	PageSize int32 `json:"page_size"`
+
+	// Supply request identifier
+	SupplyOrderId int64 `json:"supply_order_id"`
+}
+
+type ListProductsInSupplyRequestResponse struct {
+	core.CommonResponse
+
+	// Indicates that the response contains not the entire array of supply requests:
+	//   - true — make a new request with a different page and page_size values to get the remaining products;
+	//   - false — the entire array of product was returned in the response
+	HasNext bool `json:"has_next"`
+
+	// Products list
+	Items []struct {
+		// Link to product image
+		IconPath string `json:"icon_path"`
+
+		// Product name
+		Name string `json:"name"`
+
+		// Product ID
+		OfferId string `json:"offer_id"`
+
+		// Product quantity
+		Quantity int64 `json:"quantity"`
+
+		// Product identifier in the Ozon system, SKU
+		SKU int64 `json:"sku"`
+	} `json:"items"`
+
+	// Total number of products in the request
+	TotalItemsCount int32 `json:"total_items_count"`
+}
+
+// List of products in the sullpy request
+func (c FBO) ListProductsInSupplyRequest(params *ListProductsInSupplyRequestParams) (*ListProductsInSupplyRequestResponse, error) {
+	url := "/v1/supply-order/items"
+
+	resp := &ListProductsInSupplyRequestResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}

ozon/fbo_test.go

@@ -133,7 +133,346 @@ func TestGetFBOShipmentsList(t *testing.T) {
 	for _, test := range tests {
 		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
 
-		resp, err := c.FBO().GetFBOShipmentsList(test.params)
+		resp, err := c.FBO().GetShipmentsList(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestGetShipmentDetails(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *GetShipmentDetailsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&GetShipmentDetailsParams{
+				PostingNumber: "50520644-0012-7",
+				Translit:      true,
+				With: GetShipmentDetailsWith{
+					AnalyticsData: true,
+					FinancialData: true,
+				},
+			},
+			`{
+				"result": {
+				  "order_id": 354679434,
+				  "order_number": "50520644-0012",
+				  "posting_number": "50520644-0012-7",
+				  "status": "delivered",
+				  "cancel_reason_id": 0,
+				  "created_at": "2021-09-01T00:34:56.563Z",
+				  "in_process_at": "2021-09-01T00:34:56.103Z",
+				  "products": [
+					{
+					  "sku": 254665483,
+					  "name": "Мочалка натуральная из люфы с деревянной ручкой",
+					  "quantity": 1,
+					  "offer_id": "PS1033",
+					  "price": "137.00",
+					  "digital_codes": [],
+					  "currency_code": "RUB"
+					}
+				  ],
+				  "analytics_data": {
+					"region": "МОСКВА",
+					"city": "Москва",
+					"delivery_type": "Courier",
+					"is_premium": false,
+					"payment_type_group_name": "Карты оплаты",
+					"warehouse_id": 15431806189000,
+					"warehouse_name": "ХОРУГВИНО_РФЦ",
+					"is_legal": false
+				  },
+				  "financial_data": {
+					"products": [
+					  {
+						"commission_amount": 13.7,
+						"commission_percent": 10,
+						"payout": 123.3,
+						"product_id": 254665483,
+						"currency_code": "RUB",
+						"old_price": 198,
+						"price": 137,
+						"total_discount_value": 61,
+						"total_discount_percent": 30.81,
+						"actions": [
+						  "Системная виртуальная скидка селлера"
+						],
+						"picking": null,
+						"quantity": 0,
+						"client_price": "",
+						"item_services": {
+						  "marketplace_service_item_fulfillment": -31.5,
+						  "marketplace_service_item_pickup": 0,
+						  "marketplace_service_item_dropoff_pvz": 0,
+						  "marketplace_service_item_dropoff_sc": 0,
+						  "marketplace_service_item_dropoff_ff": 0,
+						  "marketplace_service_item_direct_flow_trans": -5,
+						  "marketplace_service_item_return_flow_trans": 0,
+						  "marketplace_service_item_deliv_to_customer": -20,
+						  "marketplace_service_item_return_not_deliv_to_customer": 0,
+						  "marketplace_service_item_return_part_goods_customer": 0,
+						  "marketplace_service_item_return_after_deliv_to_customer": 0
+						}
+					  }
+					],
+					"posting_services": {
+					  "marketplace_service_item_fulfillment": 0,
+					  "marketplace_service_item_pickup": 0,
+					  "marketplace_service_item_dropoff_pvz": 0,
+					  "marketplace_service_item_dropoff_sc": 0,
+					  "marketplace_service_item_dropoff_ff": 0,
+					  "marketplace_service_item_direct_flow_trans": 0,
+					  "marketplace_service_item_return_flow_trans": 0,
+					  "marketplace_service_item_deliv_to_customer": 0,
+					  "marketplace_service_item_return_not_deliv_to_customer": 0,
+					  "marketplace_service_item_return_part_goods_customer": 0,
+					  "marketplace_service_item_return_after_deliv_to_customer": 0
+					}
+				  },
+				  "additional_data": []
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&GetShipmentDetailsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.FBO().GetShipmentDetails(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.PostingNumber != test.params.PostingNumber {
+				t.Errorf("Posting numbers in request and response are not equal")
+			}
+		}
+	}
+}
+
+func TestListSupplyRequests(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ListSupplyRequestsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListSupplyRequestsParams{
+				Page:     0,
+				PageSize: 0,
+				States:   []SupplyRequestState{AcceptanceAtStorageWarehouse},
+			},
+			`{
+				"has_next": true,
+				"supply_orders": [
+				  {
+					"created_at": "string",
+					"local_timeslot": {
+					  "from": "string",
+					  "to": "string"
+					},
+					"preferred_supply_date_from": "string",
+					"preferred_supply_date_to": "string",
+					"state": "string",
+					"supply_order_id": 0,
+					"supply_order_number": "string",
+					"supply_warehouse": {
+					  "address": "string",
+					  "name": "string",
+					  "warehouse_id": 0
+					},
+					"time_left_to_prepare_supply": 0,
+					"time_left_to_select_supply_variant": 0,
+					"total_items_count": 0,
+					"total_quantity": 0
+				  }
+				],
+				"total_supply_orders_count": 0
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListSupplyRequestsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.FBO().ListSupplyRequests(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestGetSupplyRequestInfo(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *GetSupplyRequestInfoParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&GetSupplyRequestInfoParams{
+				SupplyOrderId: 0,
+			},
+			`{
+				"created_at": "string",
+				"local_timeslot": {
+				  "from": "string",
+				  "to": "string"
+				},
+				"preferred_supply_date_from": "string",
+				"preferred_supply_date_to": "string",
+				"seller_warehouse": {
+				  "address": "string",
+				  "name": "string",
+				  "warehouse_id": 0
+				},
+				"state": "string",
+				"supply_order_id": 0,
+				"supply_order_number": "string",
+				"supply_warehouse": {
+				  "address": "string",
+				  "name": "string",
+				  "warehouse_id": 0
+				},
+				"time_left_to_prepare_supply": 0,
+				"time_left_to_select_supply_variant": 0,
+				"total_items_count": 0,
+				"total_quantity": 0,
+				"vehicle_info": {
+				  "driver_name": "string",
+				  "driver_phone": "string",
+				  "vehicle_model": "string",
+				  "vehicle_number": "string"
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&GetSupplyRequestInfoParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.FBO().GetSupplyRequestInfo(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestListProductsInSupplyRequest(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ListProductsInSupplyRequestParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListProductsInSupplyRequestParams{
+				Page:          0,
+				PageSize:      0,
+				SupplyOrderId: 0,
+			},
+			`{
+				"has_next": true,
+				"items": [
+				  {
+					"icon_path": "string",
+					"name": "string",
+					"offer_id": "string",
+					"quantity": 0,
+					"sku": 0
+				  }
+				],
+				"total_items_count": 0
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListProductsInSupplyRequestParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.FBO().ListProductsInSupplyRequest(test.params)
 		if err != nil {
 			t.Error(err)
 		}

ozon/finance.go

@@ -150,7 +150,7 @@ func (c Finance) ReportOnSoldProducts(params *ReportOnSoldProductsParams) (*Repo
 
 	resp := &ReportOnSoldProductsResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -238,7 +238,146 @@ func (c Finance) GetTotalTransactionsSum(params *GetTotalTransactionsSumParams)
 
 	resp := &GetTotalTransactionsSumResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ListTransactionsParams struct{
+	// Filter
+	Filter ListTransactionsFilter `json:"filter"`
+
+	// Number of the page returned in the request
+	Page int64 `json:"page"`
+
+	// Number of items on the page
+	PageSize int64 `json:"page_size"`
+}
+
+type ListTransactionsFilter struct{
+	// Filter by date
+	Date ListTransactionsFilterDate `json:"date"`
+
+	// Operation type
+	OperationType string `json:"operation_type"`
+
+	// Shipment number
+	PostingNumber string `json:"posting_number"`
+
+	// Transaction type
+	TransactionType string `json:"transaction_type"`
+}
+
+type ListTransactionsFilterDate struct{
+	// Period start.
+	// 
+	// Format: YYYY-MM-DDTHH:mm:ss.sssZ.
+	// Example: 2019-11-25T10:43:06.51
+	From time.Time `json:"from"`
+
+	// Period end.
+	// 
+	// Format: YYYY-MM-DDTHH:mm:ss.sssZ.
+	// Example: 2019-11-25T10:43:06.51
+	To time.Time `json:"to"`
+}
+
+type ListTransactionsResponse struct{
+	core.CommonResponse
+
+	// Method result
+	Result struct{
+		// Transactions infromation
+		Operations []struct{
+			// Cost of the products with seller's discounts applied
+			AccrualsForSale float64 `json:"accruals_for_sale"`
+
+			// Total transaction sum
+			Amount float64 `json:"amount"`
+
+			// Delivery cost for charges by rates that were in effect until February 1, 2021, and for charges for bulky products
+			DeliveryCharge float64 `json:"delivery_charge"`
+
+			// Product information
+			Items []struct{
+				// Product name
+				Name string `json:"name"`
+
+				// Product identifier in the Ozon system, SKU
+				SKU int64 `json:"sku"`
+			} `json:"items"`
+
+			// Operation date
+			OperationDate string `json:"operation_date"`
+
+			// Operation identifier
+			OperationId int64 `json:"operation_id"`
+
+			// Operation type
+			OperationType string `json:"operation_type"`
+
+			// Operation type name
+			OperationTypeName string `json:"operation_type_name"`
+
+			// Shipment information
+			Posting struct{
+				// Delivery scheme:
+				//   - FBO — delivery to Ozon warehouse
+				//   - FBS — delivery from seller's warehouse
+				//   - RFBS — delivery service of seller's choice
+				//   - Crossborder — delivery from abroad
+				DeliverySchema string `json:"delivery_schema"`
+
+				// Date the product was accepted for processing
+				OrderDate string `json:"order_date"`
+
+				// Shipment number
+				PostingNumber string `json:"posting_number"`
+
+				// Warehouse identifier
+				WarehouseId int64 `json:"warehouse_id"`
+			} `json:"posting"`
+
+			// Returns and cancellation cost for charges by rates that were in effect until February 1, 2021, and for charges for bulky products
+			ReturnDeliveryCharge float64 `json:"return_delivery_charge"`
+
+			// Sales commission or sales commission refund
+			SaleCommission float64 `json:"sale_commission"`
+
+			// Additional services
+			Services []struct{
+				// Service name
+				Name string `json:"name"`
+
+				// Price
+				Price float64 `json:"price"`
+			} `json:"services"`
+
+			// Transaction type
+			Type string `json:"type"`
+		} `json:"operations"`
+
+		// Number of pages
+		PageCount int64 `json:"page_count"`
+
+		// Number of products
+		RowCount int64 `json:"row_count"`
+	} `json:"result"`
+}
+
+// Returns detailed information on all accruals. The maximum period for which you can get information in one request is 1 month.
+// 
+// If you don't specify the posting_number in request, the response contains all shipments for the specified period or shipments of a certain type
+func (c Finance) ListTransactions(params *ListTransactionsParams) (*ListTransactionsResponse, error) {
+	url := "/v3/finance/transaction/list"
+
+	resp := &ListTransactionsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}

ozon/finance_test.go

@@ -174,3 +174,91 @@ func TestGetTotalTransactionsSum(t *testing.T) {
 		}
 	}
 }
+
+func TestListTransactions(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode   int
+		headers      map[string]string
+		params       *ListTransactionsParams
+		response     string
+		errorMessage string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListTransactionsParams{
+				Filter: ListTransactionsFilter{
+					Date: ListTransactionsFilterDate{
+						From: core.TimeFromString(t, "2006-01-02T15:04:05Z", "2021-11-01T00:00:00.000Z"),
+						To:   core.TimeFromString(t, "2006-01-02T15:04:05Z", "2021-11-02T00:00:00.000Z"),
+					},
+					TransactionType: "ALL",
+				},
+				Page:     1,
+				PageSize: 1000,
+			},
+			`{
+				"result": {
+				  "operations": [
+					{
+					  "operation_id": 11401182187840,
+					  "operation_type": "MarketplaceMarketingActionCostOperation",
+					  "operation_date": "2021-11-01 00:00:00",
+					  "operation_type_name": "Услуги продвижения товаров",
+					  "delivery_charge": 0,
+					  "return_delivery_charge": 0,
+					  "accruals_for_sale": 0,
+					  "sale_commission": 0,
+					  "amount": -6.46,
+					  "type": "services",
+					  "posting": {
+						"delivery_schema": "",
+						"order_date": "",
+						"posting_number": "",
+						"warehouse_id": 0
+					  },
+					  "items": [],
+					  "services": []
+					}
+				  ],
+				  "page_count": 1,
+				  "row_count": 355
+				}
+			}`,
+			"",
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListTransactionsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+			"Client-Id and Api-Key headers are required",
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Finance().ListTransactions(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode != http.StatusOK {
+			if resp.Message != test.errorMessage {
+				t.Errorf("got wrong error message: got: %s, expected: %s", resp.Message, test.errorMessage)
+			}
+		}
+	}
+}

ozon/invoices.go

@@ -0,0 +1,97 @@
+package ozon
+
+import (
+	"net/http"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+type Invoices struct {
+	client *core.Client
+}
+
+type CreateUpdateProformaLinkParams struct {
+	// Shipment number
+	PostingNumber string `json:"posting_number"`
+
+	// Proforma invoice link
+	URL string `json:"url"`
+}
+
+type CreateUpdateProformaLinkResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result bool `json:"result"`
+}
+
+// Create or edit proforma invoice link for VAT refund to Turkey sellers
+func (c Invoices) CreateUpdate(params *CreateUpdateProformaLinkParams) (*CreateUpdateProformaLinkResponse, error) {
+	url := "/v1/invoice/create-or-update"
+
+	resp := &CreateUpdateProformaLinkResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type GetProformaLinkParams struct {
+	// Shipment number
+	PostingNumber string `json:"posting_number"`
+}
+
+type GetProformaLinkResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// Proforma invoice link
+		FileURL string `json:"file_url"`
+	} `json:"result"`
+}
+
+// Get a proforma invoice link
+func (c Invoices) Get(params *GetProformaLinkParams) (*GetProformaLinkResponse, error) {
+	url := "/v1/invoice/get"
+
+	resp := &GetProformaLinkResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type DeleteProformaLinkParams struct {
+	// Shipment number
+	PostingNumber string `json:"posting_number"`
+}
+
+type DeleteProformaLinkResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result bool `json:"result"`
+}
+
+func (c Invoices) Delete(params *DeleteProformaLinkParams) (*DeleteProformaLinkResponse, error) {
+	url := "/v1/invoice/delete"
+
+	resp := &DeleteProformaLinkResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}

ozon/invoices_test.go

@@ -0,0 +1,149 @@
+package ozon
+
+import (
+	"net/http"
+	"testing"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+func TestCreateUpdateProformaLink(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *CreateUpdateProformaLinkParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&CreateUpdateProformaLinkParams{
+				PostingNumber: "posting number",
+				URL:           "link",
+			},
+			`{
+				"result": true
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&CreateUpdateProformaLinkParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Invoices().CreateUpdate(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestGetProformaLink(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *GetProformaLinkParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&GetProformaLinkParams{
+				PostingNumber: "posting number",
+			},
+			`{
+				"result": {
+				  "file_url": "string"
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&GetProformaLinkParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Invoices().Get(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestDeleteProformaLink(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *DeleteProformaLinkParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&DeleteProformaLinkParams{
+				PostingNumber: "posting number",
+			},
+			`{
+				"result": true
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&DeleteProformaLinkParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Invoices().Delete(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}

ozon/ozon.go

@@ -23,6 +23,13 @@ type Client struct {
 	warehouses    *Warehouses
 	returns       *Returns
 	reports       *Reports
+	cancellations *Cancellations
+	categories    *Categories
+	polygons      *Polygons
+	invoices      *Invoices
+	brands        *Brands
+	chats         *Chats
+	certificates  *Certificates
 }
 
 func (c Client) Analytics() *Analytics {
@@ -65,6 +72,34 @@ func (c Client) Reports() *Reports {
 	return c.reports
 }
 
+func (c Client) Cancellations() *Cancellations {
+	return c.cancellations
+}
+
+func (c Client) Categories() *Categories {
+	return c.categories
+}
+
+func (c Client) Polygons() *Polygons {
+	return c.polygons
+}
+
+func (c Client) Invoices() *Invoices {
+	return c.invoices
+}
+
+func (c Client) Brands() *Brands {
+	return c.brands
+}
+
+func (c Client) Chats() *Chats {
+	return c.chats
+}
+
+func (c Client) Certificates() *Certificates {
+	return c.certificates
+}
+
 func NewClient(clientId, apiKey string) *Client {
 	coreClient := core.NewClient(DefaultAPIBaseUrl, map[string]string{
 		"Client-Id": clientId,
@@ -83,6 +118,13 @@ func NewClient(clientId, apiKey string) *Client {
 		warehouses:    &Warehouses{client: coreClient},
 		returns:       &Returns{client: coreClient},
 		reports:       &Reports{client: coreClient},
+		cancellations: &Cancellations{client: coreClient},
+		categories:    &Categories{client: coreClient},
+		polygons:      &Polygons{client: coreClient},
+		invoices:      &Invoices{client: coreClient},
+		brands:        &Brands{client: coreClient},
+		chats:         &Chats{client: coreClient},
+		certificates:  &Certificates{client: coreClient},
 	}
 }
 
@@ -101,5 +143,12 @@ func NewMockClient(handler http.HandlerFunc) *Client {
 		warehouses:    &Warehouses{client: coreClient},
 		returns:       &Returns{client: coreClient},
 		reports:       &Reports{client: coreClient},
+		cancellations: &Cancellations{client: coreClient},
+		categories:    &Categories{client: coreClient},
+		polygons:      &Polygons{client: coreClient},
+		invoices:      &Invoices{client: coreClient},
+		brands:        &Brands{client: coreClient},
+		chats:         &Chats{client: coreClient},
+		certificates:  &Certificates{client: coreClient},
 	}
 }

ozon/polygons.go

@@ -0,0 +1,110 @@
+package ozon
+
+import (
+	"net/http"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+type Polygons struct {
+	client *core.Client
+}
+
+type CreateDeliveryPolygonParams struct {
+	// Delivery polygon coordinates in [[[lat long]]] format
+	Coordinates string `json:"coordinates"`
+}
+
+type CreateDeliveryPolygonResponse struct {
+	core.CommonResponse
+
+	// Polygon identifier
+	PolygonId int64 `json:"polygon_id"`
+}
+
+// You can link a polygon to the delivery method.
+//
+// Create a polygon getting its coordinates on https://geojson.io: mark at least 3 points on the map and connect them
+func (c Polygons) CreateDelivery(params *CreateDeliveryPolygonParams) (*CreateDeliveryPolygonResponse, error) {
+	url := "/v1/polygon/create"
+
+	resp := &CreateDeliveryPolygonResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type LinkDeliveryMethodToPolygonParams struct {
+	// Delivery method identifier
+	DeliveryMethodId int32 `json:"delivery_method_id"`
+
+	// Polygons list
+	Polygons []LinkDeliveryMethodToPolygonPolygon `json:"polygons"`
+
+	// Warehouse location
+	WarehouseLocation LinkDeliveryMethodToPolygonWarehouse `json:"warehouse_location"`
+}
+
+type LinkDeliveryMethodToPolygonPolygon struct {
+	// Polygon identifier
+	PolygonId int64 `json:"polygon_id"`
+
+	// Delivery time within polygon in minutes
+	Time int64 `json:"time"`
+}
+
+type LinkDeliveryMethodToPolygonWarehouse struct {
+	// Warehouse location latitude
+	Latitude string `json:"lat"`
+
+	// Warehouse location longitude
+	Longitude string `json:"log"`
+}
+
+type LinkDeliveryMethodToPolygonResponse struct {
+	core.CommonResponse
+}
+
+// Link delivery method to a delivery polygon
+func (c Polygons) Link(params *LinkDeliveryMethodToPolygonParams) (*LinkDeliveryMethodToPolygonResponse, error) {
+	url := "/v1/polygon/bind"
+
+	resp := &LinkDeliveryMethodToPolygonResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type DeletePolygonParams struct {
+	// Polygons identifiers list
+	PolygonIds []int64 `json:"polygon_ids"`
+}
+
+type DeletePolygonResponse struct {
+	core.CommonResponse
+}
+
+// Delete polygon
+func (c Polygons) Delete(params *DeletePolygonParams) (*DeletePolygonResponse, error) {
+	url := "/v1/polygon/delete"
+
+	resp := &DeletePolygonResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}

ozon/polygons_test.go

@@ -0,0 +1,152 @@
+package ozon
+
+import (
+	"net/http"
+	"testing"
+
+	core "github.com/diphantxm/ozon-api-client"
+)
+
+func TestCreateDeliveryPolygon(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *CreateDeliveryPolygonParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&CreateDeliveryPolygonParams{
+				Coordinates: "[[[30.149574279785153,59.86550435303646],[30.21205902099609,59.846884387977326],[30.255661010742184,59.86240174913176],[30.149574279785153,59.86550435303646]]]",
+			},
+			`{
+				"polygonId": "1323"
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&CreateDeliveryPolygonParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Polygons().CreateDelivery(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestLinkDeliveryMethodToPolygon(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *LinkDeliveryMethodToPolygonParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&LinkDeliveryMethodToPolygonParams{
+				DeliveryMethodId: 0,
+				Polygons: []LinkDeliveryMethodToPolygonPolygon{
+					{
+						PolygonId: 1323,
+						Time:      30,
+					},
+				},
+				WarehouseLocation: LinkDeliveryMethodToPolygonWarehouse{
+					Latitude:  "58.52391272075821",
+					Longitude: "31.236791610717773",
+				},
+			},
+			`{}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&LinkDeliveryMethodToPolygonParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Polygons().Link(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestDeletePolygon(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *DeletePolygonParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&DeletePolygonParams{
+				PolygonIds: []int64{1323},
+			},
+			`{}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&DeletePolygonParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Polygons().Delete(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}

ozon/promotions.go

@@ -2,6 +2,7 @@ package ozon
 
 import (
 	"net/http"
+	"time"
 
 	core "github.com/diphantxm/ozon-api-client"
 )
@@ -75,7 +76,7 @@ func (c Promotions) GetAvailablePromotions() (*GetAvailablePromotionsResponse, e
 
 	resp := &GetAvailablePromotionsResponse{}
 
-	response, err := c.client.Request(http.MethodGet, url, nil, resp)
+	response, err := c.client.Request(http.MethodGet, url, nil, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -128,7 +129,547 @@ func (c Promotions) AddToPromotion(params *AddProductToPromotionParams) (*AddPro
 
 	resp := &AddProductToPromotionResponse{}
 
-	response, err := c.client.Request(http.MethodGet, url, params, resp)
+	response, err := c.client.Request(http.MethodGet, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ProductsAvailableForPromotionParams struct {
+	// Promotion identifier
+	ActionId float64 `json:"action_id"`
+
+	// Number of values in the response. The default value is 100
+	Limit float64 `json:"limit"`
+
+	// Number of elements that will be skipped in the response.
+	// For example, if offset=10, the response will start with the 11th element found
+	Offset float64 `json:"offset"`
+}
+
+type ProductsAvailableForPromotionResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// Products list
+		Products []PromotionProduct `json:"products"`
+
+		// Total number of products that can participate in the promotion
+		Total float64 `json:"total"`
+	} `json:"result"`
+}
+
+type PromotionProduct struct {
+	// Product identifier
+	Id float64 `json:"id"`
+
+	// Current product price without a discount
+	Price float64 `json:"price"`
+
+	// Promotional product price
+	ActionPrice float64 `json:"action_price"`
+
+	// Maximum possible promotional product price
+	MaxActionType float64 `json:"max_action_type"`
+
+	// Type of adding a product to the promotion: automatically or manually by the seller
+	AddMode string `json:"add_mode"`
+
+	// Minimum number of product units in a stock discount type promotion
+	MinStock float64 `json:"min_stock"`
+
+	// Number of product units in a stock discount type promotion
+	Stock float64 `json:"stock"`
+}
+
+// A method for getting a list of products that can participate in the promotion by the promotion identifier
+func (c Promotions) ProductsAvailableForPromotion(params *ProductsAvailableForPromotionParams) (*ProductsAvailableForPromotionResponse, error) {
+	url := "/v1/actions/candidates"
+
+	resp := &ProductsAvailableForPromotionResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ProductsInPromotionParams struct {
+	// Promotion identifier
+	ActionId float64 `json:"action_id"`
+
+	// Number of values in the response. The default value is 100
+	Limit float64 `json:"limit"`
+
+	// Number of elements that will be skipped in the response. For example, if offset=10, the response will start with the 11th element found
+	Offset float64 `json:"offset"`
+}
+
+type ProductsInPromotionResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// Products list
+		Products []PromotionProduct `json:"products"`
+
+		// Total number of products that can participate in the promotion
+		Total float64 `json:"total"`
+	} `json:"reuslt"`
+}
+
+// A method for getting the list of products participating in the promotion by its identifier
+func (c Promotions) ProductsInPromotion(params *ProductsInPromotionParams) (*ProductsInPromotionResponse, error) {
+	url := "/v1/actions/products"
+
+	resp := &ProductsInPromotionResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type RemoveProductFromPromotionParams struct {
+	// Promotion identifier
+	ActionId float64 `json:"action_id"`
+
+	// List of products identifiers
+	ProductIds []float64 `json:"product_ids"`
+}
+
+type RemoveProductFromPromotionResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// List of product identifiers that were removed from the promotion
+		ProductIds []float64 `json:"product_ids"`
+
+		// List of product identifiers that weren't removed from the promotion
+		Rejected []struct {
+			// Product identifier
+			ProductId float64 `json:"product_id"`
+
+			// Reason why the product wasn't removed from the promotion
+			Reason string `json:"reason"`
+		} `json:"rejected"`
+	} `json:"result"`
+}
+
+// A method for removing products from the promotion
+func (c Promotions) RemoveProduct(params *RemoveProductFromPromotionParams) (*RemoveProductFromPromotionResponse, error) {
+	url := "/v1/actions/products/deactivate"
+
+	resp := &RemoveProductFromPromotionResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ListHotSalePromotionsResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result []struct {
+		// Promotion end date
+		DateEnd string `json:"date_end"`
+
+		// Promotion start date
+		DateStart string `json:"date_start"`
+
+		// Promotion description
+		Description string `json:"description"`
+
+		// Promotion freeze date.
+		//
+		// If the field is filled, the seller can't increase prices, change the list of products,
+		// or decrease the number of product units in the promotion.
+		//
+		// The seller can lower prices and increase the product units number in the promotion
+		FreezeDate string `json:"freeze_date"`
+
+		// Hot Sale promotion identifier
+		HotsaleId float64 `json:"hotsale_id"`
+
+		// Indication that you participate in this promotion
+		IsParticipating bool `json:"is_participating"`
+
+		// Promotion name
+		Title string `json:"title"`
+	} `json:"result"`
+}
+
+// List of available Hot Sale promotions
+func (c Promotions) ListHotSalePromotions() (*ListHotSalePromotionsResponse, error) {
+	url := "/v1/actions/hotsales/list"
+
+	resp := &ListHotSalePromotionsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ProductsAvailableForHotSalePromotionParams struct {
+	// Hot Sale promotion identifier
+	HotSaleId float64 `json:"hotsale_id"`
+
+	// Number of elements in the response. Default value is 100
+	Limit float64 `json:"limit"`
+
+	// Number of elements that will be skipped in the response. For example, if offset=10, the response will start with the 11th element found
+	Offset float64 `json:"offset"`
+}
+
+type ProductsAvailableForHotSalePromotionResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// Products list
+		Products []struct {
+			// Promotional product price
+			ActionPrice float64 `json:"action_price"`
+
+			// Date when the product participates in the promotion in the YYYY-MM-DD format
+			DateDayPromo string `json:"date_day_promo"`
+
+			// Product identifier
+			Id float64 `json:"id"`
+
+			// Indication that product participates in the promotion
+			IsActive bool `json:"is_active"`
+
+			// Maximum possible promotional price of the product
+			MaxActionPrice float64 `json:"max_action_type"`
+
+			// Minimum number of product units in a stock discount type promotion
+			MinStock float64 `json:"min_stock"`
+
+			// Number of product units in a stock discount type promotion
+			Stock float64 `json:"stock"`
+		} `json:"products"`
+
+		// Total number of products that are available for the promotion
+		Total float64 `json:"total"`
+	} `json:"result"`
+}
+
+// Method for getting a list of products that can participate or are already participating in the Hot Sale promotion
+func (c Promotions) ProductsAvailableForHotSalePromotion(params *ProductsAvailableForHotSalePromotionParams) (*ProductsAvailableForHotSalePromotionResponse, error) {
+	url := "/v1/actions/hotsales/products"
+
+	resp := &ProductsAvailableForHotSalePromotionResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type AddProductsToHotSaleParams struct {
+	// Hot Sale promotion identifier
+	HotSaleId float64 `json:"hotsale_id"`
+
+	// Products to be added to the promotion. The maximum number in one request is 100
+	Products []AddProductsToHotSaleProduct `json:"products"`
+}
+
+type AddProductsToHotSaleProduct struct {
+	// Promotional product price
+	ActionPrice float64 `json:"action_price"`
+
+	// Product identifier
+	ProductId float64 `json:"product_id"`
+
+	// Number of product units in a stock discount type promotion
+	Stock float64 `json:"stock"`
+}
+
+type ProductsToHotSaleResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// List of products that haven't been added to the promotion
+		Rejected []struct {
+			//Product identifier
+			ProductId float64 `json:"product_id"`
+
+			// Reason why the product hasn't been added to the promotion
+			Reason string `json:"reason"`
+		} `json:"rejected"`
+	} `json:"result"`
+}
+
+func (c Promotions) AddProductsToHotSale(params *AddProductsToHotSaleParams) (*ProductsToHotSaleResponse, error) {
+	url := "/v1/actions/hotsales/activate"
+
+	resp := &ProductsToHotSaleResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type RemoveProductsToHotSaleParams struct {
+	// Hot Sale promotion identifier
+	HotSaleId float64 `json:"hotsale_id"`
+
+	// List of products identifiers. Maximum number of values in one request is 100
+	ProductIds []float64 `json:"product_ids"`
+}
+
+// Remove product from the Hot Sale promotion
+func (c Promotions) RemoveProductsToHotSale(params *RemoveProductsToHotSaleParams) (*ProductsToHotSaleResponse, error) {
+	url := "/v1/actions/hotsales/activate"
+
+	resp := &ProductsToHotSaleResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ListDiscountRequestsParams struct {
+	// Discount request status
+	Status ListDiscountRequestsStatus `json:"status" default:"UNKNOWN"`
+
+	// Page number from which you want to download the list of discount requests
+	Page uint64 `json:"page"`
+
+	// The maximum number of requests on a page
+	Limit uint64 `json:"limit"`
+}
+
+type ListDiscountRequestsResponse struct {
+	core.CommonResponse
+
+	// List of requests
+	Result []struct {
+		// Request ID
+		Id uint64 `json:"id"`
+
+		// Request created date
+		CreatedAt time.Time `json:"created_at"`
+
+		// End time of the request
+		EndAt time.Time `json:"end_at"`
+
+		// Time to change the decision
+		EditedTill time.Time `json:"edited_till"`
+
+		// Request status
+		Status string `json:"status"`
+
+		// Customer's name
+		CustomerName string `json:"customer_name"`
+
+		// Product identifier in the Ozon system, SKU
+		SKU uint64 `json:"sku"`
+
+		// Customer's comment on the request
+		UserComment string `json:"user_comment"`
+
+		// Seller's comment on the request
+		SellerComment string `json:"seller_comment"`
+
+		// Requested price
+		RequestedPrice float64 `json:"requested_price"`
+
+		// Approved price
+		ApprovedPrice float64 `json:"approved_price"`
+
+		// Product price before all discounts
+		OriginalPrice float64 `json:"original_price"`
+
+		// Discount in rubles
+		Discount float64 `json:"discount"`
+
+		// Discount percentage
+		DiscountPercent float64 `json:"discount_percent"`
+
+		// Base price at which a product is selling on Ozon, if not eligible for a promotion
+		BasePrice float64 `json:"base_price"`
+
+		// The minimum price after auto-application of discounts and promotions
+		MinAutoPrice float64 `json:"min_auto_price"`
+
+		// ID of the previous customer request for this product
+		PrevTaskId uint64 `json:"prev_task_id"`
+
+		// If product is damaged — true
+		IsDamaged bool `json:"is_damaged"`
+
+		// Moderation date: review, approval or decline of the request
+		ModeratedAt time.Time `json:"moderated_at"`
+
+		// Discount in rubles approved by the seller. Pass the value 0 if the seller did not approve the request
+		ApprovedDiscount float64 `json:"approved_discount"`
+
+		// Discount percentage approved by the seller. Pass the value 0 if the seller did not approve the request
+		ApprovedDiscountPercent float64 `json:"approved_discount_percent"`
+
+		// Whether the customer has purchased the product. true if purchased
+		IsPurchased bool `json:"is_purchased"`
+
+		// Whether the request was moderated automatically. true if moderation was automatic
+		IsAutoModerated bool `json:"is_auto_moderated"`
+
+		// Product identifier in the seller's system
+		OfferId string `json:"offer_id"`
+
+		// Email of the user who processed the request
+		Email string `json:"email"`
+
+		// Last name of the user who processed the request
+		LastName string `json:"last_name"`
+
+		// First name of the user who processed the request
+		FirstName string `json:"first_name"`
+
+		// Patronymic of the user who processed the request
+		Patronymic string `json:"patronymic"`
+
+		// Approved minimum quantity of products
+		ApprovedQuantityMin uint64 `json:"approved_quantity_min"`
+
+		// Approved maximum quantity of products
+		ApprovedQuantityMax uint64 `json:"approved_quantity_max"`
+
+		// Requested minimum number of products
+		RequestedQuantityMin uint64 `json:"requested_quantity_min"`
+
+		// Requested maximum number of products
+		RequestedQuantityMax uint64 `json:"requested_quantity_max"`
+
+		// Requested price with fee
+		RequestedPriceWithFee float64 `json:"requested_price_with_fee"`
+
+		// Approved price with fee
+		ApprovedPriceWithFee float64 `json:"approved_price_with_fee"`
+
+		// Approved price fee percent
+		ApprovedPriceFeePercent float64 `json:"approved_price_fee_percent"`
+	} `json:"result"`
+}
+
+// Method for getting a list of products that customers want to buy with discount
+func (c Promotions) ListDiscountRequests(params *ListDiscountRequestsParams) (*ListDiscountRequestsResponse, error) {
+	url := "/v1/actions/discounts-task/list"
+
+	resp := &ListDiscountRequestsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type DiscountRequestParams struct {
+	// List of discount requests
+	Tasks []DiscountRequestTask `json:"tasks"`
+}
+
+type DiscountRequestTask struct {
+	// Request ID
+	Id uint64 `json:"id"`
+
+	// Approved price
+	ApprovedPrice float64 `json:"approved_price"`
+
+	// Seller's comment on the request
+	SellerComment string `json:"seller_comment"`
+
+	// Approved minimum quantity of products
+	ApprovedQuantityMin uint64 `json:"approved_quantity_min"`
+
+	// Approved maximum quantity of products
+	ApprovedQuantityMax uint64 `json:"approved_quantity_max"`
+}
+
+type DiscountRequestResponse struct {
+	core.CommonResponse
+
+	// Method result
+	Result struct {
+		// Errors when creating a request
+		FailDetails []struct {
+			// Request ID
+			TaskId uint64 `json:"task_id"`
+
+			// Error message
+			ErrorForUser string `json:"error_for_user"`
+		} `json:"fail_details"`
+
+		// The number of requests with a successful status change
+		SuccessCount int32 `json:"success_count"`
+
+		// The number of requests that failed to change their status
+		FailCount int32 `json:"fail_count"`
+	} `json:"result"`
+}
+
+// You can approve applications in statuses:
+//   - NEW — new
+//   - SEEN — viewed
+func (c Promotions) ApproveDiscountRequest(params *DiscountRequestParams) (*DiscountRequestResponse, error) {
+	url := "/v1/actions/discounts-task/approve"
+
+	resp := &DiscountRequestResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+// You can decline applications in statuses:
+//   - NEW—new
+//   - SEEN—viewed
+func (c Promotions) DeclineDiscountRequest(params *DiscountRequestParams) (*DiscountRequestResponse, error) {
+	url := "/v1/actions/discounts-task/decline"
+
+	resp := &DiscountRequestResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}

ozon/promotions_test.go

@@ -64,6 +64,17 @@ func TestGetAvailablePromotions(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result) > 0 {
+				if resp.Result[0].Id == 0 {
+					t.Errorf("Id cannot be 0")
+				}
+				if resp.Result[0].ActionType == "" {
+					t.Errorf("Action type cannot be empty")
+				}
+			}
+		}
 	}
 }
 
@@ -122,5 +133,640 @@ func TestAddToPromotion(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result.ProductIds) != len(test.params.Products) {
+				t.Errorf("Length of products in response and request must be equal")
+			}
+		}
+	}
+}
+
+func TestProductsAvailableForPromotion(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ProductsAvailableForPromotionParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ProductsAvailableForPromotionParams{
+				ActionId: 63337,
+				Limit:    10,
+				Offset:   0,
+			},
+			`{
+				"result": {
+				  "products": [
+					{
+					  "id": 226,
+					  "price": 250,
+					  "action_price": 0,
+					  "max_action_price": 175,
+					  "add_mode": "NOT_SET",
+					  "stock": 0,
+					  "min_stock": 0
+					},
+					{
+					  "id": 1366,
+					  "price": 2300,
+					  "action_price": 630,
+					  "max_action_price": 770,
+					  "add_mode": "MANUAL",
+					  "stock": 0,
+					  "min_stock": 0
+					}
+				  ],
+				  "total": 2
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ProductsAvailableForPromotionParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().ProductsAvailableForPromotion(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestProductsInPromotion(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ProductsInPromotionParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ProductsInPromotionParams{
+				ActionId: 66011,
+				Limit:    10,
+				Offset:   0,
+			},
+			`{
+				"result": {
+				  "products": [
+					{
+					  "id": 1383,
+					  "price": 5503,
+					  "action_price": 621,
+					  "max_action_price": 3712.1,
+					  "add_mode": "MANUAL",
+					  "stock": 0,
+					  "min_stock": 0
+					}
+				  ],
+				  "total": 1
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ProductsInPromotionParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().ProductsInPromotion(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestRemoveProduct(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *RemoveProductFromPromotionParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&RemoveProductFromPromotionParams{
+				ActionId:   66011,
+				ProductIds: []float64{14975},
+			},
+			`{
+				"result": {
+				  "product_ids": [
+					14975
+				  ],
+				  "rejected": []
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&RemoveProductFromPromotionParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().RemoveProduct(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result.ProductIds) > 0 {
+				if resp.Result.ProductIds[0] != test.params.ProductIds[0] {
+					t.Errorf("Product ids in request and response are not equal")
+				}
+			}
+		}
+	}
+}
+
+func TestListHotSalePromotions(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			`{
+				"result": [
+				  {
+					"date_end": "string",
+					"date_start": "string",
+					"description": "string",
+					"freeze_date": "string",
+					"hotsale_id": 0,
+					"is_participating": true,
+					"title": "string"
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().ListHotSalePromotions()
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestProductsAvailableForHotSalePromotion(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ProductsAvailableForHotSalePromotionParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ProductsAvailableForHotSalePromotionParams{
+				HotSaleId: 0,
+				Limit:     0,
+				Offset:    0,
+			},
+			`{
+				"result": {
+				  "products": [
+					{
+					  "action_price": 0,
+					  "date_day_promo": "string",
+					  "id": 0,
+					  "is_active": true,
+					  "max_action_price": 0,
+					  "min_stock": 0,
+					  "stock": 0
+					}
+				  ],
+				  "total": 0
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ProductsAvailableForHotSalePromotionParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().ProductsAvailableForHotSalePromotion(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestAddProductsToHotSale(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *AddProductsToHotSaleParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&AddProductsToHotSaleParams{
+				HotSaleId: 1234,
+				Products: []AddProductsToHotSaleProduct{
+					{
+						ActionPrice: 12,
+						ProductId:   111,
+						Stock:       45,
+					},
+				},
+			},
+			`{
+				"result": {
+				  "rejected": [
+					{
+					  "product_id": 0,
+					  "reason": "string"
+					}
+				  ]
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&AddProductsToHotSaleParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().AddProductsToHotSale(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestRemoveProductsToHotSale(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *RemoveProductsToHotSaleParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&RemoveProductsToHotSaleParams{
+				HotSaleId:  12345,
+				ProductIds: []float64{111},
+			},
+			`{
+				"result": {
+				  "rejected": [
+					{
+					  "product_id": 0,
+					  "reason": "string"
+					}
+				  ]
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&RemoveProductsToHotSaleParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().RemoveProductsToHotSale(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestListDiscountRequests(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ListDiscountRequestsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ListDiscountRequestsParams{
+				Status: "UNKNOWN",
+				Page:   0,
+				Limit:  100,
+			},
+			`{
+				"result": [
+				  {
+					"id": 0,
+					"created_at": "2019-08-24T14:15:22Z",
+					"end_at": "2019-08-24T14:15:22Z",
+					"edited_till": "2019-08-24T14:15:22Z",
+					"status": "string",
+					"customer_name": "string",
+					"sku": 0,
+					"user_comment": "string",
+					"seller_comment": "string",
+					"requested_price": 0,
+					"approved_price": 0,
+					"original_price": 0,
+					"discount": 0,
+					"discount_percent": 0,
+					"base_price": 0,
+					"min_auto_price": 0,
+					"prev_task_id": 0,
+					"is_damaged": true,
+					"moderated_at": "2019-08-24T14:15:22Z",
+					"approved_discount": 0,
+					"approved_discount_percent": 0,
+					"is_purchased": true,
+					"is_auto_moderated": true,
+					"offer_id": "string",
+					"email": "string",
+					"last_name": "string",
+					"first_name": "string",
+					"patronymic": "string",
+					"approved_quantity_min": 0,
+					"approved_quantity_max": 0,
+					"requested_quantity_min": 0,
+					"requested_quantity_max": 0,
+					"requested_price_with_fee": 0,
+					"approved_price_with_fee": 0,
+					"approved_price_fee_percent": 0
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ListDiscountRequestsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().ListDiscountRequests(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestApproveDiscountRequest(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *DiscountRequestParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&DiscountRequestParams{
+				Tasks: []DiscountRequestTask{
+					{
+						Id: 123,
+						ApprovedPrice: 11,
+						SellerComment: "string",
+						ApprovedQuantityMin: 1,
+						ApprovedQuantityMax: 2,
+					},
+				},
+			},
+			`{
+				"result": {
+				  "fail_details": [
+					{
+					  "task_id": 1234,
+					  "error_for_user": "string"
+					}
+				  ],
+				  "success_count": 1,
+				  "fail_count": 1
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&DiscountRequestParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().ApproveDiscountRequest(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestDeclineDiscountRequest(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *DiscountRequestParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&DiscountRequestParams{
+				Tasks: []DiscountRequestTask{
+					{
+						Id: 123,
+						ApprovedPrice: 11,
+						SellerComment: "string",
+						ApprovedQuantityMin: 1,
+						ApprovedQuantityMax: 2,
+					},
+				},
+			},
+			`{
+				"result": {
+				  "fail_details": [
+					{
+					  "task_id": 1234,
+					  "error_for_user": "string"
+					}
+				  ],
+				  "success_count": 1,
+				  "fail_count": 1
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&DiscountRequestParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Promotions().DeclineDiscountRequest(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
 	}
 }

ozon/rating.go

@@ -89,7 +89,7 @@ func (c Rating) GetCurrentSellerRatingInfo() (*GetCurrentSellerRatingInfoRespons
 
 	resp := &GetCurrentSellerRatingInfoResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, nil, resp)
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -178,7 +178,7 @@ func (c Rating) GetSellerRatingInfoForPeriod(params *GetSellerRatingInfoForPerio
 
 	resp := &GetSellerRatingInfoPeriodResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}

ozon/rating_test.go

@@ -66,6 +66,14 @@ func TestGetCurrentRatingInfo(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Groups) > 0 {
+				if len(resp.Groups[0].Items) == 0 {
+					t.Errorf("Length of items in a group cannot be 0")
+				}
+			}
+		}
 	}
 }
 
@@ -146,5 +154,13 @@ func TestGetRatingInfoForPeriod(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Ratings) > 0 {
+				if resp.Ratings[0].Rating == "" {
+					t.Errorf("Rating system cannot be empty")
+				}
+			}
+		}
 	}
 }

ozon/reports.go

@@ -31,7 +31,7 @@ type GetReportsListParams struct {
 	//   - SELLER_RETURNS — returns report,
 	//   - SELLER_POSTINGS — shipments report,
 	//   - SELLER_FINANCE — financial report
-	ReportType string `json:"report_type"`
+	ReportType string `json:"report_type" default:"ALL"`
 }
 
 type GetReportsListResponse struct {
@@ -39,6 +39,8 @@ type GetReportsListResponse struct {
 
 	// Method result
 	Result struct {
+		// Array with generated reports
+		Reports []struct {
 			// Unique report identifier
 			Code string `json:"code"`
 
@@ -70,10 +72,11 @@ type GetReportsListResponse struct {
 			//   - `success`
 			//   - `failed`
 			Status string `json:"status"`
-	} `json:"result"`
+		} `json:"reports"`
 
 		// Total number of reports
 		Total int32 `json:"total"`
+	} `json:"result"`
 }
 
 // Returns the list of reports that have been generated before
@@ -82,7 +85,7 @@ func (c Reports) GetList(params *GetReportsListParams) (*GetReportsListResponse,
 
 	resp := &GetReportsListResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -136,11 +139,11 @@ type GetReportDetailsResponse struct {
 
 // Returns information about a created report by its identifier
 func (c Reports) GetReportDetails(params *GetReportDetailsParams) (*GetReportDetailsResponse, error) {
-	url := "/v1/report/list"
+	url := "/v1/report/info"
 
 	resp := &GetReportDetailsResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -217,7 +220,7 @@ func (c Reports) GetFinancial(params *GetFinancialReportParams) (*GetFinancialRe
 
 	resp := &GetFinancialReportResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -263,7 +266,7 @@ func (c Reports) GetProducts(params *GetProductsReportParams) (*GetProductsRepor
 
 	resp := &GetProductsReportResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -296,7 +299,7 @@ func (c Reports) GetStocks(params *GetStocksReportParams) (*GetStocksReportRespo
 
 	resp := &GetStocksReportResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -339,7 +342,7 @@ func (c Reports) GetProductsMovement(params *GetProductsMovementReportParams) (*
 
 	resp := &GetProductsMovementReportResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -388,7 +391,7 @@ func (c Reports) GetReturns(params *GetReturnsReportParams) (*GetReturnsReportRe
 
 	resp := &GetReturnsReportResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -405,7 +408,7 @@ type GetShipmentReportParams struct {
 	// Response language:
 	//   - RU — Russian
 	//   - EN — English
-	Language string `json:"language"`
+	Language string `json:"language" default:"DEFAULT"`
 }
 
 type GetShipmentReportFilter struct {
@@ -461,7 +464,90 @@ func (c Reports) GetShipment(params *GetShipmentReportParams) (*GetShipmentRepor
 
 	resp := &GetShipmentReportResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type IssueOnDiscountedProductsResponse struct {
+	core.CommonResponse
+
+	// Unique report identifier
+	Code string `json:"code"`
+}
+
+// Generates a report on discounted products in Ozon warehouses.
+// For example, Ozon can discount a product due to damage when delivering.
+//
+// Returns report identifier. To get the report, send the identifier in the request body of a method `/v1/report/discounted/info`
+func (c Reports) IssueOnDiscountedProducts() (*IssueOnDiscountedProductsResponse, error) {
+	url := "/v1/report/discounted/create"
+
+	resp := &IssueOnDiscountedProductsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+type ReportOnDiscountedProductsParams struct {
+	// Unique report identifier
+	Code string `json:"code"`
+}
+
+type ReportOnDiscountedProductsResponse struct {
+	core.CommonResponse
+
+	// Report information
+	Report struct {
+		// Report creation date
+		CreatedAt time.Time `json:"created_at"`
+
+		// Link to report file
+		File string `json:"file"`
+
+		// Report status:
+		//   - success — created
+		//   - pending — waiting to be processed
+		//   - processing — processed
+		//   - failed — generation error
+		Status string `json:"status"`
+
+		// Report generation error code
+		Error string `json:"error"`
+	} `json:"report"`
+}
+
+// By report identifier, returns information about the report generated earlier
+func (c Reports) ReportOnDiscountedProducts(params *ReportOnDiscountedProductsParams) (*ReportOnDiscountedProductsResponse, error) {
+	url := "/v1/report/discounted/info"
+
+	resp := &ReportOnDiscountedProductsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
+	if err != nil {
+		return nil, err
+	}
+	response.CopyCommonResponse(&resp.CommonResponse)
+
+	return resp, nil
+}
+
+// By report identifier, returns information about the report generated earlier
+func (c Reports) ListReportsOnDiscountedProducts() (*ReportOnDiscountedProductsResponse, error) {
+	url := "/v1/report/discounted/list"
+
+	resp := &ReportOnDiscountedProductsResponse{}
+
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
 	if err != nil {
 		return nil, err
 	}

ozon/reports_test.go

@@ -77,6 +77,15 @@ func TestGetList(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if int(resp.Result.Total) != len(resp.Result.Reports) {
+			t.Errorf("Amount of reports (%d) is not equal to total (%d)", len(resp.Result.Reports), resp.Result.Total)
+		}
+		if len(resp.Result.Reports) > 0 {
+			if resp.Result.Reports[0].Status == "" {
+				t.Errorf("Status must be 'success' or 'failed'")
+			}
+		}
 	}
 }
 
@@ -129,6 +138,12 @@ func TestGetReportDetails(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.Status == "" {
+				t.Errorf("Status must be 'success' or 'failed'")
+			}
+		}
 	}
 }
 
@@ -197,6 +212,14 @@ func TestGetFinancialReport(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result.CashFlows) > 0 {
+				if resp.Result.CashFlows[0].CurrencyCode == "" {
+					t.Errorf("Currency Code cannot be empty")
+				}
+			}
+		}
 	}
 }
 
@@ -243,6 +266,12 @@ func TestGetProductsReport(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.Code == "" {
+				t.Errorf("Code cannot be empty")
+			}
+		}
 	}
 }
 
@@ -289,6 +318,12 @@ func TestGetStocksReport(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.Code == "" {
+				t.Errorf("Code cannot be empty")
+			}
+		}
 	}
 }
 
@@ -338,6 +373,12 @@ func TestGetProductsMovementReport(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.Code == "" {
+				t.Errorf("Code cannot be empty")
+			}
+		}
 	}
 }
 
@@ -388,6 +429,12 @@ func TestGetReturnsReport(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.Code == "" {
+				t.Errorf("Code cannot be empty")
+			}
+		}
 	}
 }
 
@@ -440,5 +487,157 @@ func TestGetShipmentReport(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Result.Code == "" {
+				t.Errorf("Code cannot be empty")
+			}
+		}
+	}
+}
+
+func TestIssueOnDiscountedProducts(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			`{
+				"code": "d55f4517-8347-4e24-9d93-d6e736c1c07c"
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Reports().IssueOnDiscountedProducts()
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+
+		if resp.StatusCode == http.StatusOK {
+			if resp.Code == "" {
+				t.Errorf("Code cannot be empty")
+			}
+		}
+	}
+}
+
+func TestReportOnDiscountedProducts(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		params     *ReportOnDiscountedProductsParams
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			&ReportOnDiscountedProductsParams{
+				Code: "d55f4517-8347-4e24-9d93-d6e736c1c07c",
+			},
+			`{
+				"report": {
+				  "created_at": "2022-10-04T10:07:08.146Z",
+				  "error": "string",
+				  "file": "string",
+				  "status": "string"
+				}
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			&ReportOnDiscountedProductsParams{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Reports().ReportOnDiscountedProducts(test.params)
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
+	}
+}
+
+func TestListReportsOnDiscountedProducts(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		statusCode int
+		headers    map[string]string
+		response   string
+	}{
+		// Test Ok
+		{
+			http.StatusOK,
+			map[string]string{"Client-Id": "my-client-id", "Api-Key": "my-api-key"},
+			`{
+				"reports": [
+				  {
+					"created_at": "2022-10-04T10:07:08.146Z",
+					"error": "string",
+					"file": "string",
+					"status": "string"
+				  }
+				]
+			}`,
+		},
+		// Test No Client-Id or Api-Key
+		{
+			http.StatusUnauthorized,
+			map[string]string{},
+			`{
+				"code": 16,
+				"message": "Client-Id and Api-Key headers are required"
+			}`,
+		},
+	}
+
+	for _, test := range tests {
+		c := NewMockClient(core.NewMockHttpHandler(test.statusCode, test.response, test.headers))
+
+		resp, err := c.Reports().ListReportsOnDiscountedProducts()
+		if err != nil {
+			t.Error(err)
+		}
+
+		if resp.StatusCode != test.statusCode {
+			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
+		}
 	}
 }

ozon/returns.go

@@ -80,7 +80,7 @@ func (c Returns) GetFBOReturns(params *GetFBOReturnsParams) (*GetFBOReturnsRespo
 
 	resp := &GetFBOReturnsResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -240,7 +240,7 @@ func (c Returns) GetFBSReturns(params *GetFBSReturnsParams) (*GetFBSReturnsRespo
 
 	resp := &GetFBSReturnsResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, params, resp)
+	response, err := c.client.Request(http.MethodPost, url, params, resp, nil)
 	if err != nil {
 		return nil, err
 	}

ozon/returns_test.go

@@ -32,15 +32,15 @@ func TestGetFBOReturns(t *testing.T) {
 				"returns": [
 				  {
 					"accepted_from_customer_moment": "2019-08-24T14:15:22Z",
-					"company_id": 0,
+					"company_id": 123456789,
 					"current_place_name": "my-place",
 					"dst_place_name": "that-place",
-					"id": 0,
+					"id": 123456789,
 					"is_opened": true,
 					"posting_number": "some number",
 					"return_reason_name": "ripped",
 					"returned_to_ozon_moment": "2019-08-24T14:15:22Z",
-					"sku": 0,
+					"sku": 123456789,
 					"status_name": "delivering"
 				  }
 				]
@@ -69,6 +69,20 @@ func TestGetFBOReturns(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Returns) > 0 {
+				if resp.Returns[0].Id == 0 {
+					t.Errorf("Id cannot be 0")
+				}
+				if resp.Returns[0].CompanyId == 0 {
+					t.Errorf("Company id cannot be 0")
+				}
+				if resp.Returns[0].SKU == 0 {
+					t.Errorf("SKU cannot be 0")
+				}
+			}
+		}
 	}
 }
 
@@ -152,5 +166,25 @@ func TestGetFBSReturns(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if int(resp.Result.Count) != len(resp.Result.Returns) {
+				t.Errorf("Count must equal to length of returns")
+			}
+			if len(resp.Result.Returns) > 0 {
+				if resp.Result.Returns[0].Id == 0 {
+					t.Errorf("Id cannot be 0")
+				}
+				if resp.Result.Returns[0].ProductId == 0 {
+					t.Errorf("Product id cannot be 0")
+				}
+				if resp.Result.Returns[0].SKU == 0 {
+					t.Errorf("SKU cannot be 0")
+				}
+				if resp.Result.Returns[0].Status == "" {
+					t.Errorf("Status cannot be empty")
+				}
+			}
+		}
 	}
 }

ozon/warehouses.go

@@ -76,7 +76,7 @@ type GetListOfWarehousesResponse struct {
 		Status string `json:"status"`
 
 		// Warehouse working days
-		WorkingDays []string `json:"working_days"`
+		WorkingDays []WorkingDay `json:"working_days"`
 	} `json:"resulCommonResponse"`
 }
 
@@ -86,7 +86,7 @@ func (c Warehouses) GetListOfWarehouses() (*GetListOfWarehousesResponse, error)
 
 	resp := &GetListOfWarehousesResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, nil, resp)
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -174,7 +174,7 @@ func (c Warehouses) GetListOfDeliveryMethods(params *GetListOfDeliveryMethodsPar
 
 	resp := &GetListOfDeliveryMethodsResponse{}
 
-	response, err := c.client.Request(http.MethodPost, url, nil, resp)
+	response, err := c.client.Request(http.MethodPost, url, nil, resp, nil)
 	if err != nil {
 		return nil, err
 	}

ozon/warehouses_test.go

@@ -66,6 +66,17 @@ func TestGetListOfWarehouses(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result) > 0 {
+				if resp.Result[0].WarehouseId == 0 {
+					t.Errorf("Warehouse id cannot be 0")
+				}
+				if resp.Result[0].Name == "" {
+					t.Errorf("Name cannot be empty")
+				}
+			}
+		}
 	}
 }
 
@@ -130,5 +141,22 @@ func TestGetListOfDeliveryMethods(t *testing.T) {
 		if resp.StatusCode != test.statusCode {
 			t.Errorf("got wrong status code: got: %d, expected: %d", resp.StatusCode, test.statusCode)
 		}
+
+		if resp.StatusCode == http.StatusOK {
+			if len(resp.Result) > 0 {
+				if resp.Result[0].Id == 0 {
+					t.Errorf("Id cannot be 0")
+				}
+				if resp.Result[0].Name == "" {
+					t.Errorf("Name cannot be empty")
+				}
+				if resp.Result[0].Status == "" {
+					t.Errorf("Status cannot be empty")
+				}
+				if resp.Result[0].WarehouseId == 0 {
+					t.Errorf("Warehouse id cannot be 0")
+				}
+			}
+		}
 	}
 }