Add Wildberries product fetching and rate limiting functionality

internal/marketplace/db/models.go

@@ -14,4 +14,5 @@ type Marketplace struct {
 	Name            string
 	AuthData        pgtype.Text
 	WarehouseID     pgtype.Text
+	AuthDataJson    []byte
 }

internal/marketplace/db/query.sql.go

@@ -10,7 +10,7 @@ import (
 )
 
 const getMarketplaceByID = `-- name: GetMarketplaceByID :one
-SELECT id, base_marketplace, name, auth_data, warehouse_id FROM marketplaces
+SELECT id, base_marketplace, name, auth_data, warehouse_id, auth_data_json FROM marketplaces
 WHERE id = $1 LIMIT 1
 `
 
@@ -23,6 +23,7 @@ func (q *Queries) GetMarketplaceByID(ctx context.Context, id int32) (Marketplace
 		&i.Name,
 		&i.AuthData,
 		&i.WarehouseID,
+		&i.AuthDataJson,
 	)
 	return i, err
 }

internal/marketplace/db/schema.sql

@@ -1,9 +1,14 @@
 create table marketplaces
 (
-    id                           serial
+    id               serial
         primary key,
-    base_marketplace             integer                                        not null,
-    name                         varchar                                        not null,
-    auth_data                    varchar,
-    warehouse_id                 varchar
+    base_marketplace integer not null,
+    name             varchar not null,
+    auth_data        varchar,
+    warehouse_id     varchar,
+    auth_data_json   jsonb generated always as (
+        CASE
+            WHEN ((auth_data)::text IS JSON) THEN (auth_data)::jsonb
+            ELSE NULL::jsonb
+            END) stored
 );