Merge branch 'refs/heads/master' into orders

.drone.yml

@@ -0,0 +1,64 @@
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: build
+    image: golang:1.22
+    commands:
+      - CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o cake_crm cmd/cake_crm/main.go
+
+  - name: test
+    image: golang:1.22
+    environment:
+      order_bot_token:
+        from_secret: order_bot_token
+      telegram_order_chat_id:
+        from_secret: telegram_order_chat_id
+    settings:
+      envs: [ order_bot_token, telegram_order_chat_id ]
+    commands:
+      - go test ./...
+      - echo $${order_bot_token} >> order_bot_token.txt
+      - echo $${telegram_order_chat_id} >> telegram_order_chat_id.txt
+
+  - name: scp
+    image: appleboy/drone-scp
+    settings:
+      host:
+        from_secret: server_ip
+      username:
+        from_secret: ssh_user
+      key:
+        from_secret: ssh_key
+      port:
+        from_secret: ssh_port
+      target:
+        - deploys/cake_crm
+      source:
+        - resources
+        - cake_crm
+        - docker-compose.yml
+        - Dockerfile
+      rm: true
+
+  - name: deploy
+    image: appleboy/drone-ssh
+    settings:
+      host:
+        from_secret: server_ip
+      username:
+        from_secret: ssh_user
+      key:
+        from_secret: ssh_key
+      port:
+        from_secret: ssh_port
+      command_timeout: 10s
+      script:
+        - cd deploys/cake_crm
+        - docker-compose up -d --build --force-recreate
+
+trigger:
+  event:
+    - push
+

.gitignore

@@ -1 +1,6 @@
 .idea
+
+bin
+
+resources/order_bot_token.txt
+resources/telegram_order_chat_id.txt

Dockerfile

@@ -0,0 +1,5 @@
+FROM golang:1.22.3-alpine3.19
+COPY cake_crm /usr/local/bin/cake_crm
+COPY resources /go/resources
+RUN chmod +x /usr/local/bin/cake_crm
+CMD ["cake_crm"]

Makefile

@@ -1,10 +1,17 @@
 generate:
 	rm -rf proto
 	mkdir -p proto
-
+	protoc \
-	protoc -I ./api \
+	  -I ./api \
+	  -I ./third_party \
       --go_out ./proto --go_opt paths=source_relative \
       --go-grpc_out ./proto --go-grpc_opt paths=source_relative \
       --grpc-gateway_out ./proto --grpc-gateway_opt paths=source_relative \
-      --swagger_out=allow_merge=true,merge_file_name=main:./proto \
+      --openapiv2_out=./resources \
       ./api/main.proto
+
+run:
+	go run ./cmd/cake_crm/main.go
+
+build:
+	go build -o bin/cake_crm cmd/cake_crm/main.go

README.md

@@ -0,0 +1,13 @@
+# cake_crm
+
+Генерация контракта
+
+```shell
+make generate
+```
+
+Запуск
+
+```shell
+make run
+```

api/main.proto

@@ -3,8 +3,11 @@ syntax = "proto3";
 package crabs.crm;
 
 import "google/api/annotations.proto";
+import "protoc-gen-openapiv2/options/annotations.proto";
 
-option go_package = "pkg/crm";
+option go_package = "pkg/proto";
+
+option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {};
 
 service CRM {
   rpc GetCatalog(GetCatalogReq) returns (CatalogRsp) {
@@ -12,17 +15,141 @@ service CRM {
       get: "/catalog"
     };
   }
+  rpc GetPositions(GetPositionsReq) returns (PositionsRsp) {
+    option (google.api.http) = {
+      get: "/positions/{id}"
+    };
+  }
+  rpc GetProduct(GetProductReq) returns (ProductRsp) {
+    option (google.api.http) = {
+      get: "/products/{id}"
+    };
+  }
+  rpc GetBreadcrumbs(GetBreadcrumbsReq) returns (BreadcrumbsRsp) {
+    option (google.api.http) = {
+      get: "/breadcrumbs/{id}"
+    };
+  }
+  rpc Order(OrderReq) returns (OrderRsp) {
+    option (google.api.http) = {
+      post: "/orders"
+      body: "order"
+    };
+  }
+  rpc GetCard(CardReq) returns (CardRsp) {
+    option (google.api.http) = {
+      post: "/card"
+      body: "items"
+    };
+  }
 }
 
 message GetCatalogReq {}
 
 message CatalogRsp {
-  message Category {
+  repeated Category categories = 1;
+}
+
+message Category {
   int64 id = 1;
   string name = 2;
   string uri = 3;
   repeated Category children = 4;
-  }
+}
 
+message GetPositionsReq {
+  int64 id = 1;
+}
+
+message PositionsRsp {
+  repeated Product products = 1;
+}
+
+message Product {
+  int64 id = 1;
+  string article = 2;
+  string name = 3;
+  string uri = 4;
+  repeated string images = 5;
+  string description = 6;
+  repeated GroupedProduct grouped_products = 7;
+  string unit = 8;
+  double inventory = 9;
+  repeated Variant variants = 10;
+  repeated Characteristic characteristics = 11;
+  int64 category = 12;
+}
+
+message GroupedProduct {
+  string name = 1;
+  string uri = 2;
+  string image = 3;
+}
+
+message Variant {
+  int64 price = 1;
+  repeated Property properties = 2;
+}
+
+message Property {
+  string name = 1;
+  string value = 2;
+}
+
+message Characteristic {
+  string name = 1;
+  string value = 2;
+}
+
+message GetProductReq {
+  int64 id = 1;
+}
+
+message ProductRsp {
+  Product product = 1;
+}
+
+message GetBreadcrumbsReq {
+  int64 id = 1;
+}
+
+message BreadcrumbsRsp {
   repeated Category categories = 1;
 }
+
+message OrderReq {
+  Order order = 1;
+  string name = 2;
+  string phone = 3;
+}
+
+message OrderRsp {}
+
+message Order {
+  repeated OrderItem items = 1;
+}
+
+message OrderItem {
+  int64 product_id = 1;
+  int64 count = 2;
+}
+
+message CardItem {
+  int64 id = 1;
+  string article = 2;
+  string name = 3;
+  string uri = 4;
+  repeated string images = 5;
+  string unit = 8;
+  double inventory = 9;
+  int64 count = 10;
+  int64 amount = 11;
+}
+
+message CardReq {
+  repeated OrderItem items = 1;
+}
+
+message CardRsp {
+  repeated CardItem items = 1;
+}

cmd/cake_crm/main.go

@@ -2,8 +2,10 @@ package main
 
 import (
 	"cake_crm/internal/app"
-	"cake_crm/internal/models/storage/storage_file"
+	"cake_crm/internal/modules/messenger/telegram"
-	crm "cake_crm/proto"
+	"cake_crm/internal/modules/storage/storage_file"
+	"cake_crm/internal/services/card"
+	proto "cake_crm/proto"
 	"context"
 	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
 	"google.golang.org/grpc"
@@ -11,14 +13,28 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"os"
+	"strconv"
 )
 
 func main() {
-	//ctx, cancel := context.WithCancel(context.Background())
-	//defer cancel()
-
 	storage := storage_file.NewStorageFile()
-	_ = storage
+
+	cardService := card.NewService(storage)
+
+	tokenData, err := os.ReadFile("resources/order_bot_token.txt")
+	if err != nil {
+		panic(err)
+	}
+	token := string(tokenData)
+
+	chatIdData, err := os.ReadFile("resources/telegram_order_chat_id.txt")
+	if err != nil {
+		panic(err)
+	}
+	chatID, err := strconv.ParseInt(string(chatIdData), 10, 64)
+
+	messenger, err := telegram.NewMessenger(chatID, token)
 
 	// Create a listener on TCP port
 	lis, err := net.Listen("tcp", ":8080")
@@ -29,7 +45,7 @@ func main() {
 	// Create a gRPC server object
 	s := grpc.NewServer()
 	// Attach the Greeter service to the server
-	crm.RegisterCRMServer(s, app.NewServer(storage))
+	proto.RegisterCRMServer(s, app.NewServer(storage, messenger, cardService))
 	// Serve gRPC server
 	log.Println("Serving gRPC on 0.0.0.0:8080")
 	go func() {
@@ -46,18 +62,42 @@ func main() {
 		log.Fatalln("Failed to dial server:", err)
 	}
 
-	gwmux := runtime.NewServeMux()
+	mux := runtime.NewServeMux()
 	// Register Greeter
-	err = crm.RegisterCRMHandler(context.Background(), gwmux, conn)
+	err = proto.RegisterCRMHandler(context.Background(), mux, conn)
 	if err != nil {
 		log.Fatalln("Failed to register gateway:", err)
 	}
 
+	err = mux.HandlePath("GET", "/swagger", func(w http.ResponseWriter, r *http.Request, pathParams map[string]string) {
+		data, err := os.ReadFile("resources/main.swagger.json")
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+		}
+		_, _ = w.Write(data)
+	})
+	if err != nil {
+		panic(err)
+	}
+	log.Println("Serving swagger json on http://0.0.0.0:8090/swagger")
+
 	gwServer := &http.Server{
 		Addr:    ":8090",
-		Handler: gwmux,
+		Handler: cors(mux),
 	}
 
 	log.Println("Serving gRPC-Gateway on http://0.0.0.0:8090")
 	log.Fatalln(gwServer.ListenAndServe())
 }
+
+func cors(h http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+		w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PATCH, DELETE")
+		w.Header().Set("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, Authorization, ResponseType")
+		if r.Method == "OPTIONS" {
+			return
+		}
+		h.ServeHTTP(w, r)
+	})
+}

docker-compose.yml

@@ -0,0 +1,10 @@
+version: '3.8'
+
+services:
+  cake_crm:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - "8080:8090"
+

go.mod

@@ -3,7 +3,7 @@ module cake_crm
 go 1.22
 
 require (
-	github.com/go-pkgz/routegroup v1.1.1
+	github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0
 	google.golang.org/genproto/googleapis/api v0.0.0-20240513163218-0867130af1f8
 	google.golang.org/grpc v1.64.0

go.sum

@@ -1,5 +1,5 @@
-github.com/go-pkgz/routegroup v1.1.1 h1:Dm5IBiEmUbQT+3rliBimhX0SifnZp/uRF/WOu3XPmms=
+github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1 h1:wG8n/XJQ07TmjbITcGiUaOtXxdrINDz1b0J1w0SzqDc=
-github.com/go-pkgz/routegroup v1.1.1/go.mod h1:kDDPDRLRiRY1vnENrZJw1jQAzQX7fvsbsHGRQFNQfKc=
+github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1/go.mod h1:A2S0CWkNylc2phvKXWBBdD3K0iGnDBGbzRpISP2zBl8=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 h1:bkypFPDjIYGfCYD5mRBvpqxfYX1YCS1PXdKYWi8FsN0=

internal/app/server.go

@@ -1,26 +1,111 @@
 package app
 
 import (
-	"cake_crm/internal/models/storage"
+	"bytes"
-	crm "cake_crm/proto"
+	"cake_crm/internal/modules/messenger"
+	"cake_crm/internal/modules/storage"
+	"cake_crm/internal/services/card"
+	proto "cake_crm/proto"
 	"context"
+	"errors"
+	"fmt"
 )
 
 type Server struct {
-	crm.UnimplementedCRMServer
+	proto.UnsafeCRMServer
 	storage     storage.IStorage
+	messenger   messenger.IMessenger
+	cardService *card.Service
 }
 
-func NewServer(storage storage.IStorage) *Server {
+func NewServer(storage storage.IStorage, messenger messenger.IMessenger, cardService *card.Service) proto.CRMServer {
 	return &Server{
 		storage:     storage,
+		messenger:   messenger,
+		cardService: cardService,
 	}
 }
 
-func (s *Server) GetCatalog(ctx context.Context, _ *crm.GetCatalogReq) (*crm.CatalogRsp, error) {
+func (s *Server) GetCatalog(ctx context.Context, _ *proto.GetCatalogReq) (*proto.CatalogRsp, error) {
 	categories, err := s.storage.GetCatalog(ctx)
 	if err != nil {
 		return nil, err
 	}
-	return &crm.CatalogRsp{Categories: categories}, nil
+	return &proto.CatalogRsp{Categories: categories}, nil
+}
+
+func (s *Server) GetPositions(ctx context.Context, req *proto.GetPositionsReq) (*proto.PositionsRsp, error) {
+	products, err := s.storage.GetPositions(ctx, req.Id)
+	if err != nil {
+		return nil, err
+	}
+	return &proto.PositionsRsp{Products: products}, nil
+}
+
+func (s *Server) GetProduct(ctx context.Context, req *proto.GetProductReq) (*proto.ProductRsp, error) {
+	product, err := s.storage.GetProduct(ctx, req.Id)
+	if err != nil {
+		return nil, err
+	}
+	return &proto.ProductRsp{Product: product}, nil
+}
+
+func (s *Server) GetBreadcrumbs(ctx context.Context, req *proto.GetBreadcrumbsReq) (*proto.BreadcrumbsRsp, error) {
+	breadcrumbs, err := s.storage.GetBreadcrumbs(ctx, req.Id)
+	if err != nil {
+		return nil, err
+	}
+	return &proto.BreadcrumbsRsp{Categories: breadcrumbs}, nil
+}
+
+func (s *Server) Order(ctx context.Context, req *proto.OrderReq) (*proto.OrderRsp, error) {
+	enrichItems, err := s.cardService.GetCard(ctx, req.Order.Items)
+	if err != nil {
+		return nil, err
+	}
+	text, err := createOrderText(req, enrichItems)
+	if err != nil {
+		return nil, err
+	}
+	return &proto.OrderRsp{}, s.messenger.SendMessage(text)
+}
+
+func createOrderText(req *proto.OrderReq, items []*proto.CardItem) (string, error) {
+	buffer := bytes.Buffer{}
+	var orderAmount int64
+	buffer.WriteString(fmt.Sprintf("Заказ от:\n%s\n%s\n", req.Name, req.Phone))
+	buffer.WriteString("\n")
+	for _, item := range items {
+		buffer.WriteString(item.Name)
+		buffer.WriteString("\n")
+		unit, err := unitToText(item.Unit)
+		if err != nil {
+			return "", err
+		}
+		buffer.WriteString(fmt.Sprintf("Количество: %d%s\n", item.Count, unit))
+		orderAmount += item.Amount
+		buffer.WriteString(fmt.Sprintf("Сумма: %.00fр\n", float64(item.Amount)/100))
+		buffer.WriteString("\n")
+	}
+	buffer.WriteString("\n")
+	buffer.WriteString(fmt.Sprintf("ИТОГО: %.00fр\n", float64(orderAmount)/100))
+	return buffer.String(), nil
+}
+
+func unitToText(unit string) (string, error) {
+	switch unit {
+	case "kg":
+		return "кг", nil
+	case "piece":
+		return "шт", nil
+	}
+	return "", errors.New("unit not found")
+}
+
+func (s *Server) GetCard(ctx context.Context, req *proto.CardReq) (*proto.CardRsp, error) {
+	enrichItems, err := s.cardService.GetCard(ctx, req.Items)
+	if err != nil {
+		return nil, err
+	}
+	return &proto.CardRsp{Items: enrichItems}, nil
 }

internal/models/storage/interface.go

@@ -1,24 +0,0 @@
-package storage
-
-import (
-	crm "cake_crm/proto"
-	"context"
-)
-
-type Product struct {
-	ID   int    `json:"id"`
-	Name string `json:"name"`
-	// todo
-}
-
-type Breadcrumb struct {
-	Name string `json:"name"`
-	URL  string `json:"url"`
-}
-
-type IStorage interface {
-	GetAllProducts(ctx context.Context) ([]Product, error)
-	GetProductByID(ctx context.Context, id int) (Product, error)
-	GetBreadcrumbs(ctx context.Context, id int) ([]Breadcrumb, error)
-	GetCatalog(ctx context.Context) ([]*crm.CatalogRsp_Category, error)
-}

internal/models/storage/storage_file/storage.go

@@ -1,42 +0,0 @@
-package storage_file
-
-import (
-	"cake_crm/internal/models/storage"
-	crm "cake_crm/proto"
-	"context"
-	"encoding/json"
-	"os"
-)
-
-type storageFile struct{}
-
-func NewStorageFile() storage.IStorage {
-	return &storageFile{}
-}
-
-func (s *storageFile) GetCatalog(_ context.Context) ([]*crm.CatalogRsp_Category, error) {
-	data, err := os.ReadFile("resources/catalog.json")
-	if err != nil {
-		return nil, err
-	}
-	var res []*crm.CatalogRsp_Category
-	if err := json.Unmarshal(data, &res); err != nil {
-		return nil, err
-	}
-	return res, nil
-}
-
-func (s *storageFile) GetAllProducts(ctx context.Context) ([]storage.Product, error) {
-	//TODO implement me
-	panic("implement me")
-}
-
-func (s *storageFile) GetProductByID(ctx context.Context, id int) (storage.Product, error) {
-	//TODO implement me
-	panic("implement me")
-}
-
-func (s *storageFile) GetBreadcrumbs(ctx context.Context, id int) ([]storage.Breadcrumb, error) {
-	//TODO implement me
-	panic("implement me")
-}

internal/modules/messenger/interface.go

@@ -0,0 +1,5 @@
+package messenger
+
+type IMessenger interface {
+	SendMessage(message string) error
+}

internal/modules/messenger/telegram/messenger.go

@@ -0,0 +1,30 @@
+package telegram
+
+import (
+	"cake_crm/internal/modules/messenger"
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+)
+
+type messengerTelegram struct {
+	chatID int64
+	bot    *tgbotapi.BotAPI
+}
+
+func NewMessenger(
+	chatID int64,
+	token string,
+) (messenger.IMessenger, error) {
+	bot, err := tgbotapi.NewBotAPI(token)
+	if err != nil {
+		return nil, err
+	}
+	return &messengerTelegram{
+		chatID: chatID,
+		bot:    bot,
+	}, nil
+}
+
+func (m *messengerTelegram) SendMessage(message string) error {
+	_, err := m.bot.Send(tgbotapi.NewMessage(m.chatID, message))
+	return err
+}

internal/modules/storage/interface.go

@@ -0,0 +1,13 @@
+package storage
+
+import (
+	crm "cake_crm/proto"
+	"context"
+)
+
+type IStorage interface {
+	GetCatalog(ctx context.Context) ([]*crm.Category, error)
+	GetPositions(ctx context.Context, id int64) ([]*crm.Product, error)
+	GetProduct(ctx context.Context, id int64) (*crm.Product, error)
+	GetBreadcrumbs(ctx context.Context, id int64) ([]*crm.Category, error)
+}

internal/modules/storage/storage_file/storage.go

@@ -0,0 +1,97 @@
+package storage_file
+
+import (
+	"cake_crm/internal/modules/storage"
+	crm "cake_crm/proto"
+	"context"
+	"encoding/json"
+	"errors"
+	"os"
+)
+
+var (
+	ErrProductNotFound = errors.New("product not found")
+)
+
+type storageFile struct{}
+
+func NewStorageFile() storage.IStorage {
+	return &storageFile{}
+}
+
+func (s *storageFile) GetCatalog(_ context.Context) ([]*crm.Category, error) {
+	data, err := os.ReadFile("resources/catalog.json")
+	if err != nil {
+		return nil, err
+	}
+	var res []*crm.Category
+	if err := json.Unmarshal(data, &res); err != nil {
+		return nil, err
+	}
+	return res, nil
+}
+
+func (s *storageFile) GetPositions(_ context.Context, id int64) ([]*crm.Product, error) {
+	data, err := os.ReadFile("resources/products.json")
+	if err != nil {
+		return nil, err
+	}
+	var products []*crm.Product
+	if err := json.Unmarshal(data, &products); err != nil {
+		return nil, err
+	}
+	res := make([]*crm.Product, 0, len(products))
+	for _, product := range products {
+		if id == 0 || product.Category == id {
+			res = append(res, product)
+		}
+	}
+	return res, nil
+}
+
+func (s *storageFile) GetProduct(_ context.Context, id int64) (*crm.Product, error) {
+	data, err := os.ReadFile("resources/products.json")
+	if err != nil {
+		return nil, err
+	}
+	var products []*crm.Product
+	if err := json.Unmarshal(data, &products); err != nil {
+		return nil, err
+	}
+	for _, product := range products {
+		if product.Id == id {
+			return product, nil
+		}
+	}
+	return nil, ErrProductNotFound
+}
+
+func (s *storageFile) GetBreadcrumbs(_ context.Context, id int64) ([]*crm.Category, error) {
+	data, err := os.ReadFile("resources/catalog.json")
+	if err != nil {
+		return nil, err
+	}
+	var categories []*crm.Category
+	if err := json.Unmarshal(data, &categories); err != nil {
+		return nil, err
+	}
+	return getBreadcrumbs(categories, id), nil
+}
+
+func getBreadcrumbs(categories []*crm.Category, id int64) []*crm.Category {
+	for _, category := range categories {
+		if category.Id == id {
+			category.Children = nil
+			return []*crm.Category{category}
+		}
+		breadcrumbs := getBreadcrumbs(category.Children, id)
+		if len(breadcrumbs) != 0 {
+			res := make([]*crm.Category, 0, len(breadcrumbs)+1)
+			category.Children = nil
+			res = append(res, category)
+			res = append(res, breadcrumbs...)
+			return res
+		}
+	}
+	return nil
+}

internal/services/card/card.go

@@ -0,0 +1,93 @@
+package card
+
+import (
+	"cake_crm/internal/modules/storage"
+	"cake_crm/proto"
+	"context"
+	"errors"
+	"strconv"
+)
+
+type ProductAndCount struct {
+	product *proto.Product
+	count   int64
+}
+
+type Service struct {
+	storage storage.IStorage
+}
+
+func NewService(storage storage.IStorage) *Service {
+	return &Service{
+		storage: storage,
+	}
+}
+
+func (s *Service) GetCard(ctx context.Context, items []*proto.OrderItem) ([]*proto.CardItem, error) {
+	res := make([]*proto.CardItem, 0, len(items))
+	for _, item := range items {
+		product, err := s.storage.GetProduct(ctx, item.ProductId)
+		if err != nil {
+			return nil, err
+		}
+		amount, err := calcItemAmount(
+			&ProductAndCount{
+				product: product,
+				count:   item.Count,
+			},
+		)
+		if err != nil {
+			return nil, err
+		}
+		res = append(
+			res,
+			&proto.CardItem{
+				Id:        product.Id,
+				Article:   product.Article,
+				Name:      product.Name,
+				Uri:       product.Uri,
+				Images:    product.Images,
+				Unit:      product.Unit,
+				Inventory: product.Inventory,
+				Count:     item.Count,
+				Amount:    amount,
+			},
+		)
+	}
+	return res, nil
+}
+
+func calcItemAmount(item *ProductAndCount) (int64, error) {
+	var variant *proto.Variant
+	for _, v := range item.product.Variants {
+		check := true
+		for _, property := range v.Properties {
+			if property.Name == "min" {
+				minBorder, err := strconv.ParseInt(property.Value, 10, 64)
+				if err != nil {
+					return 0, err
+				}
+				if item.count < minBorder {
+					check = false
+				}
+			}
+			if property.Name == "max" {
+				maxBorder, err := strconv.ParseInt(property.Value, 10, 64)
+				if err != nil {
+					return 0, err
+				}
+				if item.count > maxBorder {
+					check = false
+				}
+			}
+			if check {
+				variant = v
+				break
+			}
+		}
+	}
+	if variant == nil {
+		return 0, errors.New("variant not found")
+	}
+	return variant.Price * item.count, nil
+}

internal/services/server_web/interface.go

@@ -1,8 +0,0 @@
-package server_web
-
-import "context"
-
-type IServer interface {
-	Run(ctx context.Context) error
-	Stop(ctx context.Context) error
-}

internal/services/server_web/server.go

@@ -1,43 +0,0 @@
-package server_web
-
-import (
-	"cake_crm/internal/models/storage"
-	"context"
-	"fmt"
-	"github.com/go-pkgz/routegroup"
-	"net/http"
-)
-
-type server struct {
-	storage storage.IStorage
-	port    int
-}
-
-func NewServer(
-	storage storage.IStorage,
-	port int,
-) IServer {
-	return &server{
-		storage: storage,
-		port:    port,
-	}
-}
-
-func (s *server) Run(ctx context.Context) error {
-	router := routegroup.New(http.NewServeMux())
-	router.HandleFunc("GET /products", s.getAllProductsHandler)
-	router.HandleFunc("GET /products/:id", s.getProductById)
-	router.HandleFunc("GET /category/:id/breadcrumbs", s.getBreadcrumbsByCategoryId)
-	return http.ListenAndServe(fmt.Sprintf(":%d", s.port), router)
-}
-
-func (s *server) Stop(ctx context.Context) error {
-	//TODO implement me
-	panic("implement me")
-}
-
-func (s *server) getAllProductsHandler(w http.ResponseWriter, r *http.Request) {}
-
-func (s *server) getProductById(w http.ResponseWriter, r *http.Request) {}
-
-func (s *server) getBreadcrumbsByCategoryId(w http.ResponseWriter, r *http.Request) {}

proto/main.pb.gw.go

@@ -2,11 +2,11 @@
 // source: main.proto
 
 /*
-Package crm is a reverse proxy.
+Package proto is a reverse proxy.
 
 It translates gRPC into RESTful JSON APIs.
 */
-package crm
+package proto
 
 import (
 	"context"
@@ -49,6 +49,232 @@ func local_request_CRM_GetCatalog_0(ctx context.Context, marshaler runtime.Marsh
 
 }
 
+func request_CRM_GetPositions_0(ctx context.Context, marshaler runtime.Marshaler, client CRMClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetPositionsReq
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["id"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "id")
+	}
+
+	protoReq.Id, err = runtime.Int64(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "id", err)
+	}
+
+	msg, err := client.GetPositions(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_CRM_GetPositions_0(ctx context.Context, marshaler runtime.Marshaler, server CRMServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetPositionsReq
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["id"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "id")
+	}
+
+	protoReq.Id, err = runtime.Int64(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "id", err)
+	}
+
+	msg, err := server.GetPositions(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+func request_CRM_GetProduct_0(ctx context.Context, marshaler runtime.Marshaler, client CRMClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetProductReq
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["id"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "id")
+	}
+
+	protoReq.Id, err = runtime.Int64(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "id", err)
+	}
+
+	msg, err := client.GetProduct(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_CRM_GetProduct_0(ctx context.Context, marshaler runtime.Marshaler, server CRMServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetProductReq
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["id"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "id")
+	}
+
+	protoReq.Id, err = runtime.Int64(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "id", err)
+	}
+
+	msg, err := server.GetProduct(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+func request_CRM_GetBreadcrumbs_0(ctx context.Context, marshaler runtime.Marshaler, client CRMClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetBreadcrumbsReq
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["id"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "id")
+	}
+
+	protoReq.Id, err = runtime.Int64(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "id", err)
+	}
+
+	msg, err := client.GetBreadcrumbs(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_CRM_GetBreadcrumbs_0(ctx context.Context, marshaler runtime.Marshaler, server CRMServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetBreadcrumbsReq
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["id"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "id")
+	}
+
+	protoReq.Id, err = runtime.Int64(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "id", err)
+	}
+
+	msg, err := server.GetBreadcrumbs(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+var (
+	filter_CRM_Order_0 = &utilities.DoubleArray{Encoding: map[string]int{"order": 0}, Base: []int{1, 1, 0}, Check: []int{0, 1, 2}}
+)
+
+func request_CRM_Order_0(ctx context.Context, marshaler runtime.Marshaler, client CRMClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq OrderReq
+	var metadata runtime.ServerMetadata
+
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq.Order); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_CRM_Order_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.Order(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_CRM_Order_0(ctx context.Context, marshaler runtime.Marshaler, server CRMServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq OrderReq
+	var metadata runtime.ServerMetadata
+
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq.Order); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_CRM_Order_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.Order(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+func request_CRM_GetCard_0(ctx context.Context, marshaler runtime.Marshaler, client CRMClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq CardReq
+	var metadata runtime.ServerMetadata
+
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq.Items); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.GetCard(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_CRM_GetCard_0(ctx context.Context, marshaler runtime.Marshaler, server CRMServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq CardReq
+	var metadata runtime.ServerMetadata
+
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq.Items); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.GetCard(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
 // RegisterCRMHandlerServer registers the http handlers for service CRM to "mux".
 // UnaryRPC     :call CRMServer directly.
 // StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
@@ -80,6 +306,131 @@ func RegisterCRMHandlerServer(ctx context.Context, mux *runtime.ServeMux, server
 
 	})
 
+	mux.Handle("GET", pattern_CRM_GetPositions_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateIncomingContext(ctx, mux, req, "/crabs.crm.CRM/GetPositions", runtime.WithHTTPPathPattern("/positions/{id}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_CRM_GetPositions_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_GetPositions_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_CRM_GetProduct_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateIncomingContext(ctx, mux, req, "/crabs.crm.CRM/GetProduct", runtime.WithHTTPPathPattern("/products/{id}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_CRM_GetProduct_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_GetProduct_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_CRM_GetBreadcrumbs_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateIncomingContext(ctx, mux, req, "/crabs.crm.CRM/GetBreadcrumbs", runtime.WithHTTPPathPattern("/breadcrumbs/{id}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_CRM_GetBreadcrumbs_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_GetBreadcrumbs_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("POST", pattern_CRM_Order_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateIncomingContext(ctx, mux, req, "/crabs.crm.CRM/Order", runtime.WithHTTPPathPattern("/orders"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_CRM_Order_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_Order_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("POST", pattern_CRM_GetCard_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateIncomingContext(ctx, mux, req, "/crabs.crm.CRM/GetCard", runtime.WithHTTPPathPattern("/card"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_CRM_GetCard_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_GetCard_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	return nil
 }
 
@@ -143,13 +494,143 @@ func RegisterCRMHandlerClient(ctx context.Context, mux *runtime.ServeMux, client
 
 	})
 
+	mux.Handle("GET", pattern_CRM_GetPositions_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateContext(ctx, mux, req, "/crabs.crm.CRM/GetPositions", runtime.WithHTTPPathPattern("/positions/{id}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_CRM_GetPositions_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_GetPositions_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_CRM_GetProduct_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateContext(ctx, mux, req, "/crabs.crm.CRM/GetProduct", runtime.WithHTTPPathPattern("/products/{id}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_CRM_GetProduct_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_GetProduct_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_CRM_GetBreadcrumbs_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateContext(ctx, mux, req, "/crabs.crm.CRM/GetBreadcrumbs", runtime.WithHTTPPathPattern("/breadcrumbs/{id}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_CRM_GetBreadcrumbs_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_GetBreadcrumbs_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("POST", pattern_CRM_Order_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateContext(ctx, mux, req, "/crabs.crm.CRM/Order", runtime.WithHTTPPathPattern("/orders"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_CRM_Order_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_Order_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("POST", pattern_CRM_GetCard_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateContext(ctx, mux, req, "/crabs.crm.CRM/GetCard", runtime.WithHTTPPathPattern("/card"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_CRM_GetCard_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_CRM_GetCard_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	return nil
 }
 
 var (
 	pattern_CRM_GetCatalog_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0}, []string{"catalog"}, ""))
+
+	pattern_CRM_GetPositions_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 1, 0, 4, 1, 5, 1}, []string{"positions", "id"}, ""))
+
+	pattern_CRM_GetProduct_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 1, 0, 4, 1, 5, 1}, []string{"products", "id"}, ""))
+
+	pattern_CRM_GetBreadcrumbs_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 1, 0, 4, 1, 5, 1}, []string{"breadcrumbs", "id"}, ""))
+
+	pattern_CRM_Order_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0}, []string{"orders"}, ""))
+
+	pattern_CRM_GetCard_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0}, []string{"card"}, ""))
 )
 
 var (
 	forward_CRM_GetCatalog_0 = runtime.ForwardResponseMessage
+
+	forward_CRM_GetPositions_0 = runtime.ForwardResponseMessage
+
+	forward_CRM_GetProduct_0 = runtime.ForwardResponseMessage
+
+	forward_CRM_GetBreadcrumbs_0 = runtime.ForwardResponseMessage
+
+	forward_CRM_Order_0 = runtime.ForwardResponseMessage
+
+	forward_CRM_GetCard_0 = runtime.ForwardResponseMessage
 )

proto/main.swagger.json

@@ -1,104 +0,0 @@
-{
-  "swagger": "2.0",
-  "info": {
-    "title": "main.proto",
-    "version": "version not set"
-  },
-  "consumes": [
-    "application/json"
-  ],
-  "produces": [
-    "application/json"
-  ],
-  "paths": {
-    "/catalog": {
-      "get": {
-        "operationId": "CRM_GetCatalog",
-        "responses": {
-          "200": {
-            "description": "A successful response.",
-            "schema": {
-              "$ref": "#/definitions/crmCatalogRsp"
-            }
-          },
-          "default": {
-            "description": "An unexpected error response.",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
-          }
-        },
-        "tags": [
-          "CRM"
-        ]
-      }
-    }
-  },
-  "definitions": {
-    "CatalogRspCategory": {
-      "type": "object",
-      "properties": {
-        "id": {
-          "type": "string",
-          "format": "int64"
-        },
-        "name": {
-          "type": "string"
-        },
-        "uri": {
-          "type": "string"
-        },
-        "children": {
-          "type": "array",
-          "items": {
-            "$ref": "#/definitions/CatalogRspCategory"
-          }
-        }
-      }
-    },
-    "crmCatalogRsp": {
-      "type": "object",
-      "properties": {
-        "categories": {
-          "type": "array",
-          "items": {
-            "$ref": "#/definitions/CatalogRspCategory"
-          }
-        }
-      }
-    },
-    "protobufAny": {
-      "type": "object",
-      "properties": {
-        "type_url": {
-          "type": "string"
-        },
-        "value": {
-          "type": "string",
-          "format": "byte"
-        }
-      }
-    },
-    "runtimeError": {
-      "type": "object",
-      "properties": {
-        "error": {
-          "type": "string"
-        },
-        "code": {
-          "type": "integer",
-          "format": "int32"
-        },
-        "message": {
-          "type": "string"
-        },
-        "details": {
-          "type": "array",
-          "items": {
-            "$ref": "#/definitions/protobufAny"
-          }
-        }
-      }
-    }
-  }
-}

proto/main_grpc.pb.go

@@ -4,7 +4,7 @@
 // - protoc             v5.26.1
 // source: main.proto
 
-package crm
+package proto
 
 import (
 	context "context"
@@ -20,6 +20,11 @@ const _ = grpc.SupportPackageIsVersion7
 
 const (
 	CRM_GetCatalog_FullMethodName     = "/crabs.crm.CRM/GetCatalog"
+	CRM_GetPositions_FullMethodName   = "/crabs.crm.CRM/GetPositions"
+	CRM_GetProduct_FullMethodName     = "/crabs.crm.CRM/GetProduct"
+	CRM_GetBreadcrumbs_FullMethodName = "/crabs.crm.CRM/GetBreadcrumbs"
+	CRM_Order_FullMethodName          = "/crabs.crm.CRM/Order"
+	CRM_GetCard_FullMethodName        = "/crabs.crm.CRM/GetCard"
 )
 
 // CRMClient is the client API for CRM service.
@@ -27,6 +32,11 @@ const (
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type CRMClient interface {
 	GetCatalog(ctx context.Context, in *GetCatalogReq, opts ...grpc.CallOption) (*CatalogRsp, error)
+	GetPositions(ctx context.Context, in *GetPositionsReq, opts ...grpc.CallOption) (*PositionsRsp, error)
+	GetProduct(ctx context.Context, in *GetProductReq, opts ...grpc.CallOption) (*ProductRsp, error)
+	GetBreadcrumbs(ctx context.Context, in *GetBreadcrumbsReq, opts ...grpc.CallOption) (*BreadcrumbsRsp, error)
+	Order(ctx context.Context, in *OrderReq, opts ...grpc.CallOption) (*OrderRsp, error)
+	GetCard(ctx context.Context, in *CardReq, opts ...grpc.CallOption) (*CardRsp, error)
 }
 
 type cRMClient struct {
@@ -46,11 +56,61 @@ func (c *cRMClient) GetCatalog(ctx context.Context, in *GetCatalogReq, opts ...g
 	return out, nil
 }
 
+func (c *cRMClient) GetPositions(ctx context.Context, in *GetPositionsReq, opts ...grpc.CallOption) (*PositionsRsp, error) {
+	out := new(PositionsRsp)
+	err := c.cc.Invoke(ctx, CRM_GetPositions_FullMethodName, in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *cRMClient) GetProduct(ctx context.Context, in *GetProductReq, opts ...grpc.CallOption) (*ProductRsp, error) {
+	out := new(ProductRsp)
+	err := c.cc.Invoke(ctx, CRM_GetProduct_FullMethodName, in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *cRMClient) GetBreadcrumbs(ctx context.Context, in *GetBreadcrumbsReq, opts ...grpc.CallOption) (*BreadcrumbsRsp, error) {
+	out := new(BreadcrumbsRsp)
+	err := c.cc.Invoke(ctx, CRM_GetBreadcrumbs_FullMethodName, in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *cRMClient) Order(ctx context.Context, in *OrderReq, opts ...grpc.CallOption) (*OrderRsp, error) {
+	out := new(OrderRsp)
+	err := c.cc.Invoke(ctx, CRM_Order_FullMethodName, in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *cRMClient) GetCard(ctx context.Context, in *CardReq, opts ...grpc.CallOption) (*CardRsp, error) {
+	out := new(CardRsp)
+	err := c.cc.Invoke(ctx, CRM_GetCard_FullMethodName, in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // CRMServer is the server API for CRM service.
 // All implementations must embed UnimplementedCRMServer
 // for forward compatibility
 type CRMServer interface {
 	GetCatalog(context.Context, *GetCatalogReq) (*CatalogRsp, error)
+	GetPositions(context.Context, *GetPositionsReq) (*PositionsRsp, error)
+	GetProduct(context.Context, *GetProductReq) (*ProductRsp, error)
+	GetBreadcrumbs(context.Context, *GetBreadcrumbsReq) (*BreadcrumbsRsp, error)
+	Order(context.Context, *OrderReq) (*OrderRsp, error)
+	GetCard(context.Context, *CardReq) (*CardRsp, error)
 	mustEmbedUnimplementedCRMServer()
 }
 
@@ -61,6 +121,21 @@ type UnimplementedCRMServer struct {
 func (UnimplementedCRMServer) GetCatalog(context.Context, *GetCatalogReq) (*CatalogRsp, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetCatalog not implemented")
 }
+func (UnimplementedCRMServer) GetPositions(context.Context, *GetPositionsReq) (*PositionsRsp, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetPositions not implemented")
+}
+func (UnimplementedCRMServer) GetProduct(context.Context, *GetProductReq) (*ProductRsp, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetProduct not implemented")
+}
+func (UnimplementedCRMServer) GetBreadcrumbs(context.Context, *GetBreadcrumbsReq) (*BreadcrumbsRsp, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetBreadcrumbs not implemented")
+}
+func (UnimplementedCRMServer) Order(context.Context, *OrderReq) (*OrderRsp, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Order not implemented")
+}
+func (UnimplementedCRMServer) GetCard(context.Context, *CardReq) (*CardRsp, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetCard not implemented")
+}
 func (UnimplementedCRMServer) mustEmbedUnimplementedCRMServer() {}
 
 // UnsafeCRMServer may be embedded to opt out of forward compatibility for this service.
@@ -92,6 +167,96 @@ func _CRM_GetCatalog_Handler(srv interface{}, ctx context.Context, dec func(inte
 	return interceptor(ctx, in, info, handler)
 }
 
+func _CRM_GetPositions_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetPositionsReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(CRMServer).GetPositions(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: CRM_GetPositions_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(CRMServer).GetPositions(ctx, req.(*GetPositionsReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _CRM_GetProduct_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetProductReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(CRMServer).GetProduct(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: CRM_GetProduct_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(CRMServer).GetProduct(ctx, req.(*GetProductReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _CRM_GetBreadcrumbs_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetBreadcrumbsReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(CRMServer).GetBreadcrumbs(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: CRM_GetBreadcrumbs_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(CRMServer).GetBreadcrumbs(ctx, req.(*GetBreadcrumbsReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _CRM_Order_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(OrderReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(CRMServer).Order(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: CRM_Order_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(CRMServer).Order(ctx, req.(*OrderReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _CRM_GetCard_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CardReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(CRMServer).GetCard(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: CRM_GetCard_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(CRMServer).GetCard(ctx, req.(*CardReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // CRM_ServiceDesc is the grpc.ServiceDesc for CRM service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -103,6 +268,26 @@ var CRM_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "GetCatalog",
 			Handler:    _CRM_GetCatalog_Handler,
 		},
+		{
+			MethodName: "GetPositions",
+			Handler:    _CRM_GetPositions_Handler,
+		},
+		{
+			MethodName: "GetProduct",
+			Handler:    _CRM_GetProduct_Handler,
+		},
+		{
+			MethodName: "GetBreadcrumbs",
+			Handler:    _CRM_GetBreadcrumbs_Handler,
+		},
+		{
+			MethodName: "Order",
+			Handler:    _CRM_Order_Handler,
+		},
+		{
+			MethodName: "GetCard",
+			Handler:    _CRM_GetCard_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "main.proto",

resources/db.json

@@ -1,128 +0,0 @@
-{
-  "products": [
-    {
-      "id": 1,
-      "article": "1",
-      "name": "\"Глаголик\" ванильно-сливочный",
-      "url": "/products/1",
-      "images": [
-        "/products/1/image-1-600x600.jpg",
-        "/products/1/image-2-600x600.jpg",
-        "/products/1/image-3-600x600.jpg"
-      ],
-      "description": "",
-      "grouped_products": [
-        {
-          "name": "\"Глаголик\" лимонный",
-          "url": "/products/2",
-          "image": "/products/2/image-100x100.jpg"
-        },
-        {
-          "name": "\"Глаголик\" мятный",
-          "url": "/products/3",
-          "image": "/products/3/image-100x100.jpg"
-        }
-      ],
-      "unit": "kg",
-      "inventory": 100,
-      "variants": [
-        {
-          "price": 16500,
-          "properties": [
-            {
-              "name": "min",
-              "value": "0"
-            },
-            {
-              "name": "max",
-              "value": "5"
-            }
-          ]
-        },
-        {
-          "price": 16000,
-          "properties": [
-            {
-              "name": "min",
-              "value": "6"
-            },
-            {
-              "name": "max",
-              "value": "60"
-            }
-          ]
-        },
-        {
-          "price": 15500,
-          "properties": [
-            {
-              "name": "min",
-              "value": "61"
-            }
-          ]
-        }
-      ],
-      "characteristics": [
-        {
-          "name": "Вкус",
-          "value": "Ванильно-сливочный"
-        }
-      ],
-      "category": "1"
-    },
-    {
-      "id": 4,
-      "article": "4",
-      "name": "Пахлава ореховая экран 1,5 кг",
-      "url": "/products/4",
-      "images": [
-        "/products/4/image-1-600x600.jpg",
-        "/products/4/image-2-600x600.jpg",
-        "/products/4/image-3-600x600.jpg"
-      ],
-      "description": "",
-      "grouped_products": [],
-      "unit": "piece",
-      "inventory": 100,
-      "variants": [
-        {
-          "price": 29000,
-          "properties": [
-            {
-              "name": "min",
-              "value": "0"
-            }
-          ]
-        }
-      ],
-      "characteristics": [
-        {
-          "name": "Вкус",
-          "value": "Ореховая"
-        }
-      ],
-      "category": "2"
-    }
-  ],
-  "categories": [
-    {
-      "id": 0,
-      "name": "Главная",
-      "url": "/categories/0",
-      "children": [
-        {
-          "id": 1,
-          "name": "Пряники",
-          "url": "/categories/1",
-          "children": []
-        },
-        {
-          "id": 2,
-          "name": "Пахлава",
-          "url": "/categories/2",
-          "children": []
-        }
-      ]
-    }
-  ]
-}

resources/main.swagger.json

@@ -0,0 +1,501 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "main.proto",
+    "version": "version not set"
+  },
+  "tags": [
+    {
+      "name": "CRM"
+    }
+  ],
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "paths": {
+    "/breadcrumbs/{id}": {
+      "get": {
+        "operationId": "CRM_GetBreadcrumbs",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/crmBreadcrumbsRsp"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "format": "int64"
+          }
+        ],
+        "tags": [
+          "CRM"
+        ]
+      }
+    },
+    "/card": {
+      "post": {
+        "operationId": "CRM_GetCard",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/crmCardRsp"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "items",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "type": "array",
+              "items": {
+                "type": "object",
+                "$ref": "#/definitions/crmOrderItem"
+              }
+            }
+          }
+        ],
+        "tags": [
+          "CRM"
+        ]
+      }
+    },
+    "/catalog": {
+      "get": {
+        "operationId": "CRM_GetCatalog",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/crmCatalogRsp"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "tags": [
+          "CRM"
+        ]
+      }
+    },
+    "/orders": {
+      "post": {
+        "operationId": "CRM_Order",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/crmOrderRsp"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "order",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/crabscrmOrder"
+            }
+          },
+          {
+            "name": "name",
+            "in": "query",
+            "required": false,
+            "type": "string"
+          },
+          {
+            "name": "phone",
+            "in": "query",
+            "required": false,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "CRM"
+        ]
+      }
+    },
+    "/positions/{id}": {
+      "get": {
+        "operationId": "CRM_GetPositions",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/crmPositionsRsp"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "format": "int64"
+          }
+        ],
+        "tags": [
+          "CRM"
+        ]
+      }
+    },
+    "/products/{id}": {
+      "get": {
+        "operationId": "CRM_GetProduct",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/crmProductRsp"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "format": "int64"
+          }
+        ],
+        "tags": [
+          "CRM"
+        ]
+      }
+    }
+  },
+  "definitions": {
+    "crabscrmOrder": {
+      "type": "object",
+      "properties": {
+        "items": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmOrderItem"
+          }
+        }
+      }
+    },
+    "crmBreadcrumbsRsp": {
+      "type": "object",
+      "properties": {
+        "categories": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmCategory"
+          }
+        }
+      }
+    },
+    "crmCardItem": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string",
+          "format": "int64"
+        },
+        "article": {
+          "type": "string"
+        },
+        "name": {
+          "type": "string"
+        },
+        "uri": {
+          "type": "string"
+        },
+        "images": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "unit": {
+          "type": "string"
+        },
+        "inventory": {
+          "type": "number",
+          "format": "double"
+        },
+        "count": {
+          "type": "string",
+          "format": "int64"
+        },
+        "amount": {
+          "type": "string",
+          "format": "int64"
+        }
+      }
+    },
+    "crmCardRsp": {
+      "type": "object",
+      "properties": {
+        "items": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmCardItem"
+          }
+        }
+      }
+    },
+    "crmCatalogRsp": {
+      "type": "object",
+      "properties": {
+        "categories": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmCategory"
+          }
+        }
+      }
+    },
+    "crmCategory": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string",
+          "format": "int64"
+        },
+        "name": {
+          "type": "string"
+        },
+        "uri": {
+          "type": "string"
+        },
+        "children": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmCategory"
+          }
+        }
+      }
+    },
+    "crmCharacteristic": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string"
+        },
+        "value": {
+          "type": "string"
+        }
+      }
+    },
+    "crmGroupedProduct": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string"
+        },
+        "uri": {
+          "type": "string"
+        },
+        "image": {
+          "type": "string"
+        }
+      }
+    },
+    "crmOrderItem": {
+      "type": "object",
+      "properties": {
+        "productId": {
+          "type": "string",
+          "format": "int64"
+        },
+        "count": {
+          "type": "string",
+          "format": "int64"
+        }
+      }
+    },
+    "crmOrderRsp": {
+      "type": "object"
+    },
+    "crmPositionsRsp": {
+      "type": "object",
+      "properties": {
+        "products": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmProduct"
+          }
+        }
+      }
+    },
+    "crmProduct": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string",
+          "format": "int64"
+        },
+        "article": {
+          "type": "string"
+        },
+        "name": {
+          "type": "string"
+        },
+        "uri": {
+          "type": "string"
+        },
+        "images": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "description": {
+          "type": "string"
+        },
+        "groupedProducts": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmGroupedProduct"
+          }
+        },
+        "unit": {
+          "type": "string"
+        },
+        "inventory": {
+          "type": "number",
+          "format": "double"
+        },
+        "variants": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmVariant"
+          }
+        },
+        "characteristics": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmCharacteristic"
+          }
+        },
+        "category": {
+          "type": "string",
+          "format": "int64"
+        }
+      }
+    },
+    "crmProductRsp": {
+      "type": "object",
+      "properties": {
+        "product": {
+          "$ref": "#/definitions/crmProduct"
+        }
+      }
+    },
+    "crmProperty": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string"
+        },
+        "value": {
+          "type": "string"
+        }
+      }
+    },
+    "crmVariant": {
+      "type": "object",
+      "properties": {
+        "price": {
+          "type": "string",
+          "format": "int64"
+        },
+        "properties": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmProperty"
+          }
+        }
+      }
+    },
+    "protobufAny": {
+      "type": "object",
+      "properties": {
+        "@type": {
+          "type": "string"
+        }
+      },
+      "additionalProperties": {}
+    },
+    "rpcStatus": {
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "message": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/protobufAny"
+          }
+        }
+      }
+    }
+  }
+}

resources/products.json

@@ -0,0 +1,105 @@
+[
+  {
+    "id": 1,
+    "article": "1",
+    "name": "\"Глаголик\" ванильно-сливочный",
+    "uri": "/products/1",
+    "images": [
+      "/products/1/image-1-600x600.jpg",
+      "/products/1/image-2-600x600.jpg",
+      "/products/1/image-3-600x600.jpg"
+    ],
+    "description": "",
+    "grouped_products": [
+      {
+        "name": "\"Глаголик\" лимонный",
+        "uri": "/products/2",
+        "image": "/products/2/image-100x100.jpg"
+      },
+      {
+        "name": "\"Глаголик\" мятный",
+        "uri": "/products/3",
+        "image": "/products/3/image-100x100.jpg"
+      }
+    ],
+    "unit": "kg",
+    "inventory": 100,
+    "variants": [
+      {
+        "price": 16500,
+        "properties": [
+          {
+            "name": "min",
+            "value": "0"
+          },
+          {
+            "name": "max",
+            "value": "5"
+          }
+        ]
+      },
+      {
+        "price": 16000,
+        "properties": [
+          {
+            "name": "min",
+            "value": "6"
+          },
+          {
+            "name": "max",
+            "value": "60"
+          }
+        ]
+      },
+      {
+        "price": 15500,
+        "properties": [
+          {
+            "name": "min",
+            "value": "61"
+          }
+        ]
+      }
+    ],
+    "characteristics": [
+      {
+        "name": "Вкус",
+        "value": "Ванильно-сливочный"
+      }
+    ],
+    "category": 1
+  },
+  {
+    "id": 4,
+    "article": "4",
+    "name": "Пахлава ореховая экран 1,5 кг",
+    "uri": "/products/4",
+    "images": [
+      "/products/4/image-1-600x600.jpg",
+      "/products/4/image-2-600x600.jpg",
+      "/products/4/image-3-600x600.jpg"
+    ],
+    "description": "",
+    "grouped_products": [],
+    "unit": "piece",
+    "inventory": 100,
+    "variants": [
+      {
+        "price": 29000,
+        "properties": [
+          {
+            "name": "min",
+            "value": "0"
+          }
+        ]
+      }
+    ],
+    "characteristics": [
+      {
+        "name": "Вкус",
+        "value": "Ореховая"
+      }
+    ],
+    "category": 2
+  }
+]

third_party/protoc-gen-openapiv2/options/annotations.proto

@@ -0,0 +1,44 @@
+syntax = "proto3";
+
+package grpc.gateway.protoc_gen_openapiv2.options;
+
+import "google/protobuf/descriptor.proto";
+import "protoc-gen-openapiv2/options/openapiv2.proto";
+
+option go_package = "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2/options";
+
+extend google.protobuf.FileOptions {
+  // ID assigned by protobuf-global-extension-registry@google.com for gRPC-Gateway project.
+  //
+  // All IDs are the same, as assigned. It is okay that they are the same, as they extend
+  // different descriptor messages.
+  Swagger openapiv2_swagger = 1042;
+}
+extend google.protobuf.MethodOptions {
+  // ID assigned by protobuf-global-extension-registry@google.com for gRPC-Gateway project.
+  //
+  // All IDs are the same, as assigned. It is okay that they are the same, as they extend
+  // different descriptor messages.
+  Operation openapiv2_operation = 1042;
+}
+extend google.protobuf.MessageOptions {
+  // ID assigned by protobuf-global-extension-registry@google.com for gRPC-Gateway project.
+  //
+  // All IDs are the same, as assigned. It is okay that they are the same, as they extend
+  // different descriptor messages.
+  Schema openapiv2_schema = 1042;
+}
+extend google.protobuf.ServiceOptions {
+  // ID assigned by protobuf-global-extension-registry@google.com for gRPC-Gateway project.
+  //
+  // All IDs are the same, as assigned. It is okay that they are the same, as they extend
+  // different descriptor messages.
+  Tag openapiv2_tag = 1042;
+}
+extend google.protobuf.FieldOptions {
+  // ID assigned by protobuf-global-extension-registry@google.com for gRPC-Gateway project.
+  //
+  // All IDs are the same, as assigned. It is okay that they are the same, as they extend
+  // different descriptor messages.
+  JSONSchema openapiv2_field = 1042;
+}

third_party/protoc-gen-openapiv2/options/openapiv2.proto

@@ -0,0 +1,720 @@
+syntax = "proto3";
+
+package grpc.gateway.protoc_gen_openapiv2.options;
+
+import "google/protobuf/struct.proto";
+
+option go_package = "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2/options";
+
+// Scheme describes the schemes supported by the OpenAPI Swagger
+// and Operation objects.
+enum Scheme {
+  UNKNOWN = 0;
+  HTTP = 1;
+  HTTPS = 2;
+  WS = 3;
+  WSS = 4;
+}
+
+// `Swagger` is a representation of OpenAPI v2 specification's Swagger object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#swaggerObject
+//
+// Example:
+//
+//  option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
+//    info: {
+//      title: "Echo API";
+//      version: "1.0";
+//      description: "";
+//      contact: {
+//        name: "gRPC-Gateway project";
+//        url: "https://github.com/grpc-ecosystem/grpc-gateway";
+//        email: "none@example.com";
+//      };
+//      license: {
+//        name: "BSD 3-Clause License";
+//        url: "https://github.com/grpc-ecosystem/grpc-gateway/blob/main/LICENSE";
+//      };
+//    };
+//    schemes: HTTPS;
+//    consumes: "application/json";
+//    produces: "application/json";
+//  };
+//
+message Swagger {
+  // Specifies the OpenAPI Specification version being used. It can be
+  // used by the OpenAPI UI and other clients to interpret the API listing. The
+  // value MUST be "2.0".
+  string swagger = 1;
+  // Provides metadata about the API. The metadata can be used by the
+  // clients if needed.
+  Info info = 2;
+  // The host (name or ip) serving the API. This MUST be the host only and does
+  // not include the scheme nor sub-paths. It MAY include a port. If the host is
+  // not included, the host serving the documentation is to be used (including
+  // the port). The host does not support path templating.
+  string host = 3;
+  // The base path on which the API is served, which is relative to the host. If
+  // it is not included, the API is served directly under the host. The value
+  // MUST start with a leading slash (/). The basePath does not support path
+  // templating.
+  // Note that using `base_path` does not change the endpoint paths that are
+  // generated in the resulting OpenAPI file. If you wish to use `base_path`
+  // with relatively generated OpenAPI paths, the `base_path` prefix must be
+  // manually removed from your `google.api.http` paths and your code changed to
+  // serve the API from the `base_path`.
+  string base_path = 4;
+  // The transfer protocol of the API. Values MUST be from the list: "http",
+  // "https", "ws", "wss". If the schemes is not included, the default scheme to
+  // be used is the one used to access the OpenAPI definition itself.
+  repeated Scheme schemes = 5;
+  // A list of MIME types the APIs can consume. This is global to all APIs but
+  // can be overridden on specific API calls. Value MUST be as described under
+  // Mime Types.
+  repeated string consumes = 6;
+  // A list of MIME types the APIs can produce. This is global to all APIs but
+  // can be overridden on specific API calls. Value MUST be as described under
+  // Mime Types.
+  repeated string produces = 7;
+  // field 8 is reserved for 'paths'.
+  reserved 8;
+  // field 9 is reserved for 'definitions', which at this time are already
+  // exposed as and customizable as proto messages.
+  reserved 9;
+  // An object to hold responses that can be used across operations. This
+  // property does not define global responses for all operations.
+  map<string, Response> responses = 10;
+  // Security scheme definitions that can be used across the specification.
+  SecurityDefinitions security_definitions = 11;
+  // A declaration of which security schemes are applied for the API as a whole.
+  // The list of values describes alternative security schemes that can be used
+  // (that is, there is a logical OR between the security requirements).
+  // Individual operations can override this definition.
+  repeated SecurityRequirement security = 12;
+  // A list of tags for API documentation control. Tags can be used for logical
+  // grouping of operations by resources or any other qualifier.
+  repeated Tag tags = 13;
+  // Additional external documentation.
+  ExternalDocumentation external_docs = 14;
+  // Custom properties that start with "x-" such as "x-foo" used to describe
+  // extra functionality that is not covered by the standard OpenAPI Specification.
+  // See: https://swagger.io/docs/specification/2-0/swagger-extensions/
+  map<string, google.protobuf.Value> extensions = 15;
+}
+
+// `Operation` is a representation of OpenAPI v2 specification's Operation object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#operationObject
+//
+// Example:
+//
+//  service EchoService {
+//    rpc Echo(SimpleMessage) returns (SimpleMessage) {
+//      option (google.api.http) = {
+//        get: "/v1/example/echo/{id}"
+//      };
+//
+//      option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_operation) = {
+//        summary: "Get a message.";
+//        operation_id: "getMessage";
+//        tags: "echo";
+//        responses: {
+//          key: "200"
+//            value: {
+//            description: "OK";
+//          }
+//        }
+//      };
+//    }
+//  }
+message Operation {
+  // A list of tags for API documentation control. Tags can be used for logical
+  // grouping of operations by resources or any other qualifier.
+  repeated string tags = 1;
+  // A short summary of what the operation does. For maximum readability in the
+  // swagger-ui, this field SHOULD be less than 120 characters.
+  string summary = 2;
+  // A verbose explanation of the operation behavior. GFM syntax can be used for
+  // rich text representation.
+  string description = 3;
+  // Additional external documentation for this operation.
+  ExternalDocumentation external_docs = 4;
+  // Unique string used to identify the operation. The id MUST be unique among
+  // all operations described in the API. Tools and libraries MAY use the
+  // operationId to uniquely identify an operation, therefore, it is recommended
+  // to follow common programming naming conventions.
+  string operation_id = 5;
+  // A list of MIME types the operation can consume. This overrides the consumes
+  // definition at the OpenAPI Object. An empty value MAY be used to clear the
+  // global definition. Value MUST be as described under Mime Types.
+  repeated string consumes = 6;
+  // A list of MIME types the operation can produce. This overrides the produces
+  // definition at the OpenAPI Object. An empty value MAY be used to clear the
+  // global definition. Value MUST be as described under Mime Types.
+  repeated string produces = 7;
+  // field 8 is reserved for 'parameters'.
+  reserved 8;
+  // The list of possible responses as they are returned from executing this
+  // operation.
+  map<string, Response> responses = 9;
+  // The transfer protocol for the operation. Values MUST be from the list:
+  // "http", "https", "ws", "wss". The value overrides the OpenAPI Object
+  // schemes definition.
+  repeated Scheme schemes = 10;
+  // Declares this operation to be deprecated. Usage of the declared operation
+  // should be refrained. Default value is false.
+  bool deprecated = 11;
+  // A declaration of which security schemes are applied for this operation. The
+  // list of values describes alternative security schemes that can be used
+  // (that is, there is a logical OR between the security requirements). This
+  // definition overrides any declared top-level security. To remove a top-level
+  // security declaration, an empty array can be used.
+  repeated SecurityRequirement security = 12;
+  // Custom properties that start with "x-" such as "x-foo" used to describe
+  // extra functionality that is not covered by the standard OpenAPI Specification.
+  // See: https://swagger.io/docs/specification/2-0/swagger-extensions/
+  map<string, google.protobuf.Value> extensions = 13;
+  // Custom parameters such as HTTP request headers.
+  // See: https://swagger.io/docs/specification/2-0/describing-parameters/
+  // and https://swagger.io/specification/v2/#parameter-object.
+  Parameters parameters = 14;
+}
+
+// `Parameters` is a representation of OpenAPI v2 specification's parameters object.
+// Note: This technically breaks compatibility with the OpenAPI 2 definition structure as we only
+// allow header parameters to be set here since we do not want users specifying custom non-header
+// parameters beyond those inferred from the Protobuf schema.
+// See: https://swagger.io/specification/v2/#parameter-object
+message Parameters {
+  // `Headers` is one or more HTTP header parameter.
+  // See: https://swagger.io/docs/specification/2-0/describing-parameters/#header-parameters
+  repeated HeaderParameter headers = 1;
+}
+
+// `HeaderParameter` a HTTP header parameter.
+// See: https://swagger.io/specification/v2/#parameter-object
+message HeaderParameter {
+  // `Type` is a supported HTTP header type.
+  // See https://swagger.io/specification/v2/#parameterType.
+  enum Type {
+    UNKNOWN = 0;
+    STRING = 1;
+    NUMBER = 2;
+    INTEGER = 3;
+    BOOLEAN = 4;
+  }
+
+  // `Name` is the header name.
+  string name = 1;
+  // `Description` is a short description of the header.
+  string description = 2;
+  // `Type` is the type of the object. The value MUST be one of "string", "number", "integer", or "boolean". The "array" type is not supported.
+  // See: https://swagger.io/specification/v2/#parameterType.
+  Type type = 3;
+  // `Format` The extending format for the previously mentioned type.
+  string format = 4;
+  // `Required` indicates if the header is optional
+  bool required = 5;
+  // field 6 is reserved for 'items', but in OpenAPI-specific way.
+  reserved 6;
+  // field 7 is reserved `Collection Format`. Determines the format of the array if type array is used.
+  reserved 7;
+}
+
+// `Header` is a representation of OpenAPI v2 specification's Header object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#headerObject
+//
+message Header {
+  // `Description` is a short description of the header.
+  string description = 1;
+  // The type of the object. The value MUST be one of "string", "number", "integer", or "boolean". The "array" type is not supported.
+  string type = 2;
+  // `Format` The extending format for the previously mentioned type.
+  string format = 3;
+  // field 4 is reserved for 'items', but in OpenAPI-specific way.
+  reserved 4;
+  // field 5 is reserved `Collection Format` Determines the format of the array if type array is used.
+  reserved 5;
+  // `Default` Declares the value of the header that the server will use if none is provided.
+  // See: https://tools.ietf.org/html/draft-fge-json-schema-validation-00#section-6.2.
+  // Unlike JSON Schema this value MUST conform to the defined type for the header.
+  string default = 6;
+  // field 7 is reserved for 'maximum'.
+  reserved 7;
+  // field 8 is reserved for 'exclusiveMaximum'.
+  reserved 8;
+  // field 9 is reserved for 'minimum'.
+  reserved 9;
+  // field 10 is reserved for 'exclusiveMinimum'.
+  reserved 10;
+  // field 11 is reserved for 'maxLength'.
+  reserved 11;
+  // field 12 is reserved for 'minLength'.
+  reserved 12;
+  // 'Pattern' See https://tools.ietf.org/html/draft-fge-json-schema-validation-00#section-5.2.3.
+  string pattern = 13;
+  // field 14 is reserved for 'maxItems'.
+  reserved 14;
+  // field 15 is reserved for 'minItems'.
+  reserved 15;
+  // field 16 is reserved for 'uniqueItems'.
+  reserved 16;
+  // field 17 is reserved for 'enum'.
+  reserved 17;
+  // field 18 is reserved for 'multipleOf'.
+  reserved 18;
+}
+
+// `Response` is a representation of OpenAPI v2 specification's Response object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#responseObject
+//
+message Response {
+  // `Description` is a short description of the response.
+  // GFM syntax can be used for rich text representation.
+  string description = 1;
+  // `Schema` optionally defines the structure of the response.
+  // If `Schema` is not provided, it means there is no content to the response.
+  Schema schema = 2;
+  // `Headers` A list of headers that are sent with the response.
+  // `Header` name is expected to be a string in the canonical format of the MIME header key
+  // See: https://golang.org/pkg/net/textproto/#CanonicalMIMEHeaderKey
+  map<string, Header> headers = 3;
+  // `Examples` gives per-mimetype response examples.
+  // See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#example-object
+  map<string, string> examples = 4;
+  // Custom properties that start with "x-" such as "x-foo" used to describe
+  // extra functionality that is not covered by the standard OpenAPI Specification.
+  // See: https://swagger.io/docs/specification/2-0/swagger-extensions/
+  map<string, google.protobuf.Value> extensions = 5;
+}
+
+// `Info` is a representation of OpenAPI v2 specification's Info object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#infoObject
+//
+// Example:
+//
+//  option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
+//    info: {
+//      title: "Echo API";
+//      version: "1.0";
+//      description: "";
+//      contact: {
+//        name: "gRPC-Gateway project";
+//        url: "https://github.com/grpc-ecosystem/grpc-gateway";
+//        email: "none@example.com";
+//      };
+//      license: {
+//        name: "BSD 3-Clause License";
+//        url: "https://github.com/grpc-ecosystem/grpc-gateway/blob/main/LICENSE";
+//      };
+//    };
+//    ...
+//  };
+//
+message Info {
+  // The title of the application.
+  string title = 1;
+  // A short description of the application. GFM syntax can be used for rich
+  // text representation.
+  string description = 2;
+  // The Terms of Service for the API.
+  string terms_of_service = 3;
+  // The contact information for the exposed API.
+  Contact contact = 4;
+  // The license information for the exposed API.
+  License license = 5;
+  // Provides the version of the application API (not to be confused
+  // with the specification version).
+  string version = 6;
+  // Custom properties that start with "x-" such as "x-foo" used to describe
+  // extra functionality that is not covered by the standard OpenAPI Specification.
+  // See: https://swagger.io/docs/specification/2-0/swagger-extensions/
+  map<string, google.protobuf.Value> extensions = 7;
+}
+
+// `Contact` is a representation of OpenAPI v2 specification's Contact object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#contactObject
+//
+// Example:
+//
+//  option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
+//    info: {
+//      ...
+//      contact: {
+//        name: "gRPC-Gateway project";
+//        url: "https://github.com/grpc-ecosystem/grpc-gateway";
+//        email: "none@example.com";
+//      };
+//      ...
+//    };
+//    ...
+//  };
+//
+message Contact {
+  // The identifying name of the contact person/organization.
+  string name = 1;
+  // The URL pointing to the contact information. MUST be in the format of a
+  // URL.
+  string url = 2;
+  // The email address of the contact person/organization. MUST be in the format
+  // of an email address.
+  string email = 3;
+}
+
+// `License` is a representation of OpenAPI v2 specification's License object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#licenseObject
+//
+// Example:
+//
+//  option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
+//    info: {
+//      ...
+//      license: {
+//        name: "BSD 3-Clause License";
+//        url: "https://github.com/grpc-ecosystem/grpc-gateway/blob/main/LICENSE";
+//      };
+//      ...
+//    };
+//    ...
+//  };
+//
+message License {
+  // The license name used for the API.
+  string name = 1;
+  // A URL to the license used for the API. MUST be in the format of a URL.
+  string url = 2;
+}
+
+// `ExternalDocumentation` is a representation of OpenAPI v2 specification's
+// ExternalDocumentation object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#externalDocumentationObject
+//
+// Example:
+//
+//  option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
+//    ...
+//    external_docs: {
+//      description: "More about gRPC-Gateway";
+//      url: "https://github.com/grpc-ecosystem/grpc-gateway";
+//    }
+//    ...
+//  };
+//
+message ExternalDocumentation {
+  // A short description of the target documentation. GFM syntax can be used for
+  // rich text representation.
+  string description = 1;
+  // The URL for the target documentation. Value MUST be in the format
+  // of a URL.
+  string url = 2;
+}
+
+// `Schema` is a representation of OpenAPI v2 specification's Schema object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#schemaObject
+//
+message Schema {
+  JSONSchema json_schema = 1;
+  // Adds support for polymorphism. The discriminator is the schema property
+  // name that is used to differentiate between other schema that inherit this
+  // schema. The property name used MUST be defined at this schema and it MUST
+  // be in the required property list. When used, the value MUST be the name of
+  // this schema or any schema that inherits it.
+  string discriminator = 2;
+  // Relevant only for Schema "properties" definitions. Declares the property as
+  // "read only". This means that it MAY be sent as part of a response but MUST
+  // NOT be sent as part of the request. Properties marked as readOnly being
+  // true SHOULD NOT be in the required list of the defined schema. Default
+  // value is false.
+  bool read_only = 3;
+  // field 4 is reserved for 'xml'.
+  reserved 4;
+  // Additional external documentation for this schema.
+  ExternalDocumentation external_docs = 5;
+  // A free-form property to include an example of an instance for this schema in JSON.
+  // This is copied verbatim to the output.
+  string example = 6;
+}
+
+// `JSONSchema` represents properties from JSON Schema taken, and as used, in
+// the OpenAPI v2 spec.
+//
+// This includes changes made by OpenAPI v2.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#schemaObject
+//
+// See also: https://cswr.github.io/JsonSchema/spec/basic_types/,
+// https://github.com/json-schema-org/json-schema-spec/blob/master/schema.json
+//
+// Example:
+//
+//  message SimpleMessage {
+//    option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_schema) = {
+//      json_schema: {
+//        title: "SimpleMessage"
+//        description: "A simple message."
+//        required: ["id"]
+//      }
+//    };
+//
+//    // Id represents the message identifier.
+//    string id = 1; [
+//        (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_field) = {
+//          description: "The unique identifier of the simple message."
+//        }];
+//  }
+//
+message JSONSchema {
+  // field 1 is reserved for '$id', omitted from OpenAPI v2.
+  reserved 1;
+  // field 2 is reserved for '$schema', omitted from OpenAPI v2.
+  reserved 2;
+  // Ref is used to define an external reference to include in the message.
+  // This could be a fully qualified proto message reference, and that type must
+  // be imported into the protofile. If no message is identified, the Ref will
+  // be used verbatim in the output.
+  // For example:
+  //  `ref: ".google.protobuf.Timestamp"`.
+  string ref = 3;
+  // field 4 is reserved for '$comment', omitted from OpenAPI v2.
+  reserved 4;
+  // The title of the schema.
+  string title = 5;
+  // A short description of the schema.
+  string description = 6;
+  string default = 7;
+  bool read_only = 8;
+  // A free-form property to include a JSON example of this field. This is copied
+  // verbatim to the output swagger.json. Quotes must be escaped.
+  // This property is the same for 2.0 and 3.0.0 https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/3.0.0.md#schemaObject  https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#schemaObject
+  string example = 9;
+  double multiple_of = 10;
+  // Maximum represents an inclusive upper limit for a numeric instance. The
+  // value of MUST be a number,
+  double maximum = 11;
+  bool exclusive_maximum = 12;
+  // minimum represents an inclusive lower limit for a numeric instance. The
+  // value of MUST be a number,
+  double minimum = 13;
+  bool exclusive_minimum = 14;
+  uint64 max_length = 15;
+  uint64 min_length = 16;
+  string pattern = 17;
+  // field 18 is reserved for 'additionalItems', omitted from OpenAPI v2.
+  reserved 18;
+  // field 19 is reserved for 'items', but in OpenAPI-specific way.
+  // TODO(ivucica): add 'items'?
+  reserved 19;
+  uint64 max_items = 20;
+  uint64 min_items = 21;
+  bool unique_items = 22;
+  // field 23 is reserved for 'contains', omitted from OpenAPI v2.
+  reserved 23;
+  uint64 max_properties = 24;
+  uint64 min_properties = 25;
+  repeated string required = 26;
+  // field 27 is reserved for 'additionalProperties', but in OpenAPI-specific
+  // way. TODO(ivucica): add 'additionalProperties'?
+  reserved 27;
+  // field 28 is reserved for 'definitions', omitted from OpenAPI v2.
+  reserved 28;
+  // field 29 is reserved for 'properties', but in OpenAPI-specific way.
+  // TODO(ivucica): add 'additionalProperties'?
+  reserved 29;
+  // following fields are reserved, as the properties have been omitted from
+  // OpenAPI v2:
+  // patternProperties, dependencies, propertyNames, const
+  reserved 30 to 33;
+  // Items in 'array' must be unique.
+  repeated string array = 34;
+
+  enum JSONSchemaSimpleTypes {
+    UNKNOWN = 0;
+    ARRAY = 1;
+    BOOLEAN = 2;
+    INTEGER = 3;
+    NULL = 4;
+    NUMBER = 5;
+    OBJECT = 6;
+    STRING = 7;
+  }
+
+  repeated JSONSchemaSimpleTypes type = 35;
+  // `Format`
+  string format = 36;
+  // following fields are reserved, as the properties have been omitted from
+  // OpenAPI v2: contentMediaType, contentEncoding, if, then, else
+  reserved 37 to 41;
+  // field 42 is reserved for 'allOf', but in OpenAPI-specific way.
+  // TODO(ivucica): add 'allOf'?
+  reserved 42;
+  // following fields are reserved, as the properties have been omitted from
+  // OpenAPI v2:
+  // anyOf, oneOf, not
+  reserved 43 to 45;
+  // Items in `enum` must be unique https://tools.ietf.org/html/draft-fge-json-schema-validation-00#section-5.5.1
+  repeated string enum = 46;
+
+  // Additional field level properties used when generating the OpenAPI v2 file.
+  FieldConfiguration field_configuration = 1001;
+
+  // 'FieldConfiguration' provides additional field level properties used when generating the OpenAPI v2 file.
+  // These properties are not defined by OpenAPIv2, but they are used to control the generation.
+  message FieldConfiguration {
+    // Alternative parameter name when used as path parameter. If set, this will
+    // be used as the complete parameter name when this field is used as a path
+    // parameter. Use this to avoid having auto generated path parameter names
+    // for overlapping paths.
+    string path_param_name = 47;
+  }
+  // Custom properties that start with "x-" such as "x-foo" used to describe
+  // extra functionality that is not covered by the standard OpenAPI Specification.
+  // See: https://swagger.io/docs/specification/2-0/swagger-extensions/
+  map<string, google.protobuf.Value> extensions = 48;
+}
+
+// `Tag` is a representation of OpenAPI v2 specification's Tag object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#tagObject
+//
+message Tag {
+  // The name of the tag. Use it to allow override of the name of a
+  // global Tag object, then use that name to reference the tag throughout the
+  // OpenAPI file.
+  string name = 1;
+  // A short description for the tag. GFM syntax can be used for rich text
+  // representation.
+  string description = 2;
+  // Additional external documentation for this tag.
+  ExternalDocumentation external_docs = 3;
+  // Custom properties that start with "x-" such as "x-foo" used to describe
+  // extra functionality that is not covered by the standard OpenAPI Specification.
+  // See: https://swagger.io/docs/specification/2-0/swagger-extensions/
+  map<string, google.protobuf.Value> extensions = 4;
+}
+
+// `SecurityDefinitions` is a representation of OpenAPI v2 specification's
+// Security Definitions object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#securityDefinitionsObject
+//
+// A declaration of the security schemes available to be used in the
+// specification. This does not enforce the security schemes on the operations
+// and only serves to provide the relevant details for each scheme.
+message SecurityDefinitions {
+  // A single security scheme definition, mapping a "name" to the scheme it
+  // defines.
+  map<string, SecurityScheme> security = 1;
+}
+
+// `SecurityScheme` is a representation of OpenAPI v2 specification's
+// Security Scheme object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#securitySchemeObject
+//
+// Allows the definition of a security scheme that can be used by the
+// operations. Supported schemes are basic authentication, an API key (either as
+// a header or as a query parameter) and OAuth2's common flows (implicit,
+// password, application and access code).
+message SecurityScheme {
+  // The type of the security scheme. Valid values are "basic",
+  // "apiKey" or "oauth2".
+  enum Type {
+    TYPE_INVALID = 0;
+    TYPE_BASIC = 1;
+    TYPE_API_KEY = 2;
+    TYPE_OAUTH2 = 3;
+  }
+
+  // The location of the API key. Valid values are "query" or "header".
+  enum In {
+    IN_INVALID = 0;
+    IN_QUERY = 1;
+    IN_HEADER = 2;
+  }
+
+  // The flow used by the OAuth2 security scheme. Valid values are
+  // "implicit", "password", "application" or "accessCode".
+  enum Flow {
+    FLOW_INVALID = 0;
+    FLOW_IMPLICIT = 1;
+    FLOW_PASSWORD = 2;
+    FLOW_APPLICATION = 3;
+    FLOW_ACCESS_CODE = 4;
+  }
+
+  // The type of the security scheme. Valid values are "basic",
+  // "apiKey" or "oauth2".
+  Type type = 1;
+  // A short description for security scheme.
+  string description = 2;
+  // The name of the header or query parameter to be used.
+  // Valid for apiKey.
+  string name = 3;
+  // The location of the API key. Valid values are "query" or
+  // "header".
+  // Valid for apiKey.
+  In in = 4;
+  // The flow used by the OAuth2 security scheme. Valid values are
+  // "implicit", "password", "application" or "accessCode".
+  // Valid for oauth2.
+  Flow flow = 5;
+  // The authorization URL to be used for this flow. This SHOULD be in
+  // the form of a URL.
+  // Valid for oauth2/implicit and oauth2/accessCode.
+  string authorization_url = 6;
+  // The token URL to be used for this flow. This SHOULD be in the
+  // form of a URL.
+  // Valid for oauth2/password, oauth2/application and oauth2/accessCode.
+  string token_url = 7;
+  // The available scopes for the OAuth2 security scheme.
+  // Valid for oauth2.
+  Scopes scopes = 8;
+  // Custom properties that start with "x-" such as "x-foo" used to describe
+  // extra functionality that is not covered by the standard OpenAPI Specification.
+  // See: https://swagger.io/docs/specification/2-0/swagger-extensions/
+  map<string, google.protobuf.Value> extensions = 9;
+}
+
+// `SecurityRequirement` is a representation of OpenAPI v2 specification's
+// Security Requirement object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#securityRequirementObject
+//
+// Lists the required security schemes to execute this operation. The object can
+// have multiple security schemes declared in it which are all required (that
+// is, there is a logical AND between the schemes).
+//
+// The name used for each property MUST correspond to a security scheme
+// declared in the Security Definitions.
+message SecurityRequirement {
+  // If the security scheme is of type "oauth2", then the value is a list of
+  // scope names required for the execution. For other security scheme types,
+  // the array MUST be empty.
+  message SecurityRequirementValue {
+    repeated string scope = 1;
+  }
+  // Each name must correspond to a security scheme which is declared in
+  // the Security Definitions. If the security scheme is of type "oauth2",
+  // then the value is a list of scope names required for the execution.
+  // For other security scheme types, the array MUST be empty.
+  map<string, SecurityRequirementValue> security_requirement = 1;
+}
+
+// `Scopes` is a representation of OpenAPI v2 specification's Scopes object.
+//
+// See: https://github.com/OAI/OpenAPI-Specification/blob/3.0.0/versions/2.0.md#scopesObject
+//
+// Lists the available scopes for an OAuth2 security scheme.
+message Scopes {
+  // Maps between a name of a scope to a short description of it (as the value
+  // of the property).
+  map<string, string> scope = 1;
+}