Add gRPC server implementation and database integration for marketplace and products

internal/marketplace/repository_db.go

@@ -0,0 +1,29 @@
+package marketplace
+
+import (
+	"context"
+	"github.com/jackc/pgx/v5"
+	"sipro-mps/internal/marketplace/db"
+)
+
+type dbRepository struct {
+	conn *pgx.Conn
+}
+
+func NewDBRepository(conn *pgx.Conn) Repository {
+	return &dbRepository{conn: conn}
+}
+
+func (r *dbRepository) GetMarketplaceByID(ctx context.Context, id int) (*Marketplace, error) {
+	queries := db.New(r.conn)
+	marketplace, err := queries.GetMarketplaceByID(ctx, int32(id))
+	if err != nil {
+		return nil, err
+	}
+	return &Marketplace{
+		ID:              int(marketplace.ID),
+		BaseMarketplace: int(marketplace.BaseMarketplace),
+		AuthData:        marketplace.AuthData.String,
+		WarehouseID:     marketplace.WarehouseID.String,
+	}, nil
+}