add get card method

api/main.proto

@@ -36,6 +36,12 @@ service CRM {
       body: "order"
     };
   }
+  rpc GetCard(CardReq) returns (CardRsp) {
+    option (google.api.http) = {
+      post: "/card"
+      body: "items"
+    };
+  }
 }
 
 message GetCatalogReq {}
@@ -127,3 +133,23 @@ 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 +2,9 @@ package main
 
 import (
 	"cake_crm/internal/app"
-	"cake_crm/internal/models/messenger/telegram"
+	"cake_crm/internal/modules/messenger/telegram"
-	"cake_crm/internal/models/storage/storage_file"
+	"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"
@@ -19,6 +20,8 @@ import (
 func main() {
 	storage := storage_file.NewStorageFile()
 
+	cardService := card.NewService(storage)
+
 	tokenData, err := os.ReadFile("resources/order_bot_token.txt")
 	if err != nil {
 		panic(err)
@@ -42,7 +45,7 @@ func main() {
 	// Create a gRPC server object
 	s := grpc.NewServer()
 	// Attach the Greeter service to the server
-	proto.RegisterCRMServer(s, app.NewServer(storage, messenger))
+	proto.RegisterCRMServer(s, app.NewServer(storage, messenger, cardService))
 	// Serve gRPC server
 	log.Println("Serving gRPC on 0.0.0.0:8080")
 	go func() {

internal/app/server.go

@@ -2,33 +2,27 @@ package app
 
 import (
 	"bytes"
-	"cake_crm/internal/models/messenger"
+	"cake_crm/internal/modules/messenger"
-	"cake_crm/internal/models/storage"
+	"cake_crm/internal/modules/storage"
+	"cake_crm/internal/services/card"
 	proto "cake_crm/proto"
 	"context"
 	"errors"
 	"fmt"
-	"strconv"
 )
 
-type orderItem struct {
-	product *proto.Product
-	count   int64
-}
-
 type Server struct {
 	proto.UnsafeCRMServer
 	storage     storage.IStorage
 	messenger   messenger.IMessenger
+	cardService *card.Service
 }
 
-func NewServer(
+func NewServer(storage storage.IStorage, messenger messenger.IMessenger, cardService *card.Service) proto.CRMServer {
-	storage storage.IStorage,
-	messenger messenger.IMessenger,
-) proto.CRMServer {
 	return &Server{
 		storage:     storage,
 		messenger:   messenger,
+		cardService: cardService,
 	}
 }
 
@@ -65,88 +59,39 @@ func (s *Server) GetBreadcrumbs(ctx context.Context, req *proto.GetBreadcrumbsRe
 }
 
 func (s *Server) Order(ctx context.Context, req *proto.OrderReq) (*proto.OrderRsp, error) {
-	items := make([]*orderItem, 0, len(req.Order.Items))
+	enrichItems, err := s.cardService.GetCard(ctx, req.Order.Items)
-	for _, item := range req.Order.Items {
-		product, err := s.storage.GetProduct(ctx, item.ProductId)
 	if err != nil {
 		return nil, err
 	}
-		items = append(
+	text, err := createOrderText(req, enrichItems)
-			items,
-			&orderItem{
-				product: product,
-				count:   item.Count,
-			},
-		)
-	}
-	text, err := createOrderText(req, items)
 	if err != nil {
 		return nil, err
 	}
 	return &proto.OrderRsp{}, s.messenger.SendMessage(text)
 }
 
-func createOrderText(req *proto.OrderReq, items []*orderItem) (string, error) {
+func createOrderText(req *proto.OrderReq, items []*proto.CardItem) (string, error) {
 	buffer := bytes.Buffer{}
-	orderAmount := 0.0
+	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.product.Name)
+		buffer.WriteString(item.Name)
 		buffer.WriteString("\n")
-		unit, err := unitToText(item.product.Unit)
+		unit, err := unitToText(item.Unit)
 		if err != nil {
 			return "", err
 		}
-		buffer.WriteString(fmt.Sprintf("Количество: %d%s\n", item.count, unit))
+		buffer.WriteString(fmt.Sprintf("Количество: %d%s\n", item.Count, unit))
-		amount, err := calcItemAmount(item)
+		orderAmount += item.Amount
-		if err != nil {
+		buffer.WriteString(fmt.Sprintf("Сумма: %.00fр\n", float64(item.Amount)/100))
-			return "", err
-		}
-		orderAmount += amount
-		buffer.WriteString(fmt.Sprintf("Сумма: %.00fр\n", amount))
 		buffer.WriteString("\n")
 	}
 	buffer.WriteString("\n")
-	buffer.WriteString(fmt.Sprintf("ИТОГО: %.00fр\n", orderAmount))
+	buffer.WriteString(fmt.Sprintf("ИТОГО: %.00fр\n", float64(orderAmount)/100))
 	return buffer.String(), nil
 }
 
-func calcItemAmount(item *orderItem) (float64, 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 float64(variant.Price) * float64(item.count) / 100, nil
-}
-
 func unitToText(unit string) (string, error) {
 	switch unit {
 	case "kg":
@@ -156,3 +101,11 @@ func unitToText(unit string) (string, error) {
 	}
 	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/modules/messenger/telegram/messenger.go

@@ -1,7 +1,7 @@
 package telegram
 
 import (
-	"cake_crm/internal/models/messenger"
+	"cake_crm/internal/modules/messenger"
 	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
 )
 

internal/modules/storage/storage_file/storage.go

@@ -1,7 +1,7 @@
 package storage_file
 
 import (
-	"cake_crm/internal/models/storage"
+	"cake_crm/internal/modules/storage"
 	crm "cake_crm/proto"
 	"context"
 	"encoding/json"

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
+}

proto/main.pb.go

@@ -318,7 +318,7 @@ func (x *Product) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use Product.ProtoReflect.Descriptor instead.
+// Deprecated: Use product.ProtoReflect.Descriptor instead.
 func (*Product) Descriptor() ([]byte, []int) {
 	return file_main_proto_rawDescGZIP(), []int{5}
 }
@@ -1026,6 +1026,211 @@ func (x *OrderItem) GetCount() int64 {
 	return 0
 }
 
+type CardItem struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id        int64    `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	Article   string   `protobuf:"bytes,2,opt,name=article,proto3" json:"article,omitempty"`
+	Name      string   `protobuf:"bytes,3,opt,name=name,proto3" json:"name,omitempty"`
+	Uri       string   `protobuf:"bytes,4,opt,name=uri,proto3" json:"uri,omitempty"`
+	Images    []string `protobuf:"bytes,5,rep,name=images,proto3" json:"images,omitempty"`
+	Unit      string   `protobuf:"bytes,8,opt,name=unit,proto3" json:"unit,omitempty"`
+	Inventory float64  `protobuf:"fixed64,9,opt,name=inventory,proto3" json:"inventory,omitempty"`
+	Count     int64    `protobuf:"varint,10,opt,name=count,proto3" json:"count,omitempty"`
+	Amount    int64    `protobuf:"varint,11,opt,name=amount,proto3" json:"amount,omitempty"`
+}
+
+func (x *CardItem) Reset() {
+	*x = CardItem{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_main_proto_msgTypes[18]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CardItem) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CardItem) ProtoMessage() {}
+
+func (x *CardItem) ProtoReflect() protoreflect.Message {
+	mi := &file_main_proto_msgTypes[18]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CardItem.ProtoReflect.Descriptor instead.
+func (*CardItem) Descriptor() ([]byte, []int) {
+	return file_main_proto_rawDescGZIP(), []int{18}
+}
+
+func (x *CardItem) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+func (x *CardItem) GetArticle() string {
+	if x != nil {
+		return x.Article
+	}
+	return ""
+}
+
+func (x *CardItem) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *CardItem) GetUri() string {
+	if x != nil {
+		return x.Uri
+	}
+	return ""
+}
+
+func (x *CardItem) GetImages() []string {
+	if x != nil {
+		return x.Images
+	}
+	return nil
+}
+
+func (x *CardItem) GetUnit() string {
+	if x != nil {
+		return x.Unit
+	}
+	return ""
+}
+
+func (x *CardItem) GetInventory() float64 {
+	if x != nil {
+		return x.Inventory
+	}
+	return 0
+}
+
+func (x *CardItem) GetCount() int64 {
+	if x != nil {
+		return x.Count
+	}
+	return 0
+}
+
+func (x *CardItem) GetAmount() int64 {
+	if x != nil {
+		return x.Amount
+	}
+	return 0
+}
+
+type CardReq struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Items []*OrderItem `protobuf:"bytes,1,rep,name=items,proto3" json:"items,omitempty"`
+}
+
+func (x *CardReq) Reset() {
+	*x = CardReq{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_main_proto_msgTypes[19]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CardReq) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CardReq) ProtoMessage() {}
+
+func (x *CardReq) ProtoReflect() protoreflect.Message {
+	mi := &file_main_proto_msgTypes[19]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CardReq.ProtoReflect.Descriptor instead.
+func (*CardReq) Descriptor() ([]byte, []int) {
+	return file_main_proto_rawDescGZIP(), []int{19}
+}
+
+func (x *CardReq) GetItems() []*OrderItem {
+	if x != nil {
+		return x.Items
+	}
+	return nil
+}
+
+type CardRsp struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Items []*CardItem `protobuf:"bytes,1,rep,name=items,proto3" json:"items,omitempty"`
+}
+
+func (x *CardRsp) Reset() {
+	*x = CardRsp{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_main_proto_msgTypes[20]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CardRsp) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CardRsp) ProtoMessage() {}
+
+func (x *CardRsp) ProtoReflect() protoreflect.Message {
+	mi := &file_main_proto_msgTypes[20]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CardRsp.ProtoReflect.Descriptor instead.
+func (*CardRsp) Descriptor() ([]byte, []int) {
+	return file_main_proto_rawDescGZIP(), []int{20}
+}
+
+func (x *CardRsp) GetItems() []*CardItem {
+	if x != nil {
+		return x.Items
+	}
+	return nil
+}
+
 var File_main_proto protoreflect.FileDescriptor
 
 var file_main_proto_rawDesc = []byte{
@@ -1123,37 +1328,61 @@ var file_main_proto_rawDesc = []byte{
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+	0x6b, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1168,14 +1397,14 @@ func file_main_proto_rawDescGZIP() []byte {
 	return file_main_proto_rawDescData
 }
 
-var file_main_proto_msgTypes = make([]protoimpl.MessageInfo, 18)
+var file_main_proto_msgTypes = make([]protoimpl.MessageInfo, 21)
 var file_main_proto_goTypes = []interface{}{
 	(*GetCatalogReq)(nil),     // 0: crabs.crm.GetCatalogReq
 	(*CatalogRsp)(nil),        // 1: crabs.crm.CatalogRsp
 	(*Category)(nil),          // 2: crabs.crm.Category
 	(*GetPositionsReq)(nil),   // 3: crabs.crm.GetPositionsReq
 	(*PositionsRsp)(nil),      // 4: crabs.crm.PositionsRsp
-	(*Product)(nil),           // 5: crabs.crm.Product
+	(*Product)(nil),           // 5: crabs.crm.product
 	(*GroupedProduct)(nil),    // 6: crabs.crm.GroupedProduct
 	(*Variant)(nil),           // 7: crabs.crm.Variant
 	(*Property)(nil),          // 8: crabs.crm.Property
@@ -1188,34 +1417,41 @@ var file_main_proto_goTypes = []interface{}{
 	(*OrderRsp)(nil),          // 15: crabs.crm.OrderRsp
 	(*Order)(nil),             // 16: crabs.crm.Order
 	(*OrderItem)(nil),         // 17: crabs.crm.OrderItem
+	(*CardItem)(nil),          // 18: crabs.crm.CardItem
+	(*CardReq)(nil),           // 19: crabs.crm.CardReq
+	(*CardRsp)(nil),           // 20: crabs.crm.CardRsp
 }
 var file_main_proto_depIdxs = []int32{
 	2,  // 0: crabs.crm.CatalogRsp.categories:type_name -> crabs.crm.Category
 	2,  // 1: crabs.crm.Category.children:type_name -> crabs.crm.Category
-	5,  // 2: crabs.crm.PositionsRsp.products:type_name -> crabs.crm.Product
+	5,  // 2: crabs.crm.PositionsRsp.products:type_name -> crabs.crm.product
-	6,  // 3: crabs.crm.Product.grouped_products:type_name -> crabs.crm.GroupedProduct
+	6,  // 3: crabs.crm.product.grouped_products:type_name -> crabs.crm.GroupedProduct
-	7,  // 4: crabs.crm.Product.variants:type_name -> crabs.crm.Variant
+	7,  // 4: crabs.crm.product.variants:type_name -> crabs.crm.Variant
-	9,  // 5: crabs.crm.Product.characteristics:type_name -> crabs.crm.Characteristic
+	9,  // 5: crabs.crm.product.characteristics:type_name -> crabs.crm.Characteristic
 	8,  // 6: crabs.crm.Variant.properties:type_name -> crabs.crm.Property
-	5,  // 7: crabs.crm.ProductRsp.product:type_name -> crabs.crm.Product
+	5,  // 7: crabs.crm.ProductRsp.product:type_name -> crabs.crm.product
 	2,  // 8: crabs.crm.BreadcrumbsRsp.categories:type_name -> crabs.crm.Category
 	16, // 9: crabs.crm.OrderReq.order:type_name -> crabs.crm.Order
 	17, // 10: crabs.crm.Order.items:type_name -> crabs.crm.OrderItem
-	0,  // 11: crabs.crm.CRM.GetCatalog:input_type -> crabs.crm.GetCatalogReq
+	17, // 11: crabs.crm.CardReq.items:type_name -> crabs.crm.OrderItem
-	3,  // 12: crabs.crm.CRM.GetPositions:input_type -> crabs.crm.GetPositionsReq
+	18, // 12: crabs.crm.CardRsp.items:type_name -> crabs.crm.CardItem
-	10, // 13: crabs.crm.CRM.GetProduct:input_type -> crabs.crm.GetProductReq
+	0,  // 13: crabs.crm.CRM.GetCatalog:input_type -> crabs.crm.GetCatalogReq
-	12, // 14: crabs.crm.CRM.GetBreadcrumbs:input_type -> crabs.crm.GetBreadcrumbsReq
+	3,  // 14: crabs.crm.CRM.GetPositions:input_type -> crabs.crm.GetPositionsReq
-	14, // 15: crabs.crm.CRM.Order:input_type -> crabs.crm.OrderReq
+	10, // 15: crabs.crm.CRM.GetProduct:input_type -> crabs.crm.GetProductReq
-	1,  // 16: crabs.crm.CRM.GetCatalog:output_type -> crabs.crm.CatalogRsp
+	12, // 16: crabs.crm.CRM.GetBreadcrumbs:input_type -> crabs.crm.GetBreadcrumbsReq
-	4,  // 17: crabs.crm.CRM.GetPositions:output_type -> crabs.crm.PositionsRsp
+	14, // 17: crabs.crm.CRM.Order:input_type -> crabs.crm.OrderReq
-	11, // 18: crabs.crm.CRM.GetProduct:output_type -> crabs.crm.ProductRsp
+	19, // 18: crabs.crm.CRM.GetCard:input_type -> crabs.crm.CardReq
-	13, // 19: crabs.crm.CRM.GetBreadcrumbs:output_type -> crabs.crm.BreadcrumbsRsp
+	1,  // 19: crabs.crm.CRM.GetCatalog:output_type -> crabs.crm.CatalogRsp
-	15, // 20: crabs.crm.CRM.Order:output_type -> crabs.crm.OrderRsp
+	4,  // 20: crabs.crm.CRM.GetPositions:output_type -> crabs.crm.PositionsRsp
-	16, // [16:21] is the sub-list for method output_type
+	11, // 21: crabs.crm.CRM.GetProduct:output_type -> crabs.crm.ProductRsp
-	11, // [11:16] is the sub-list for method input_type
+	13, // 22: crabs.crm.CRM.GetBreadcrumbs:output_type -> crabs.crm.BreadcrumbsRsp
-	11, // [11:11] is the sub-list for extension type_name
+	15, // 23: crabs.crm.CRM.Order:output_type -> crabs.crm.OrderRsp
-	11, // [11:11] is the sub-list for extension extendee
+	20, // 24: crabs.crm.CRM.GetCard:output_type -> crabs.crm.CardRsp
-	0,  // [0:11] is the sub-list for field type_name
+	19, // [19:25] is the sub-list for method output_type
+	13, // [13:19] is the sub-list for method input_type
+	13, // [13:13] is the sub-list for extension type_name
+	13, // [13:13] is the sub-list for extension extendee
+	0,  // [0:13] is the sub-list for field type_name
 }
 
 func init() { file_main_proto_init() }
@@ -1440,6 +1676,42 @@ func file_main_proto_init() {
 				return nil
 			}
 		}
+		file_main_proto_msgTypes[18].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CardItem); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_main_proto_msgTypes[19].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CardReq); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_main_proto_msgTypes[20].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CardRsp); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -1447,7 +1719,7 @@ func file_main_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_main_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   18,
+			NumMessages:   21,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

proto/main.pb.gw.go

@@ -249,6 +249,32 @@ func local_request_CRM_Order_0(ctx context.Context, marshaler runtime.Marshaler,
 
 }
 
+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.
@@ -380,6 +406,31 @@ func RegisterCRMHandlerServer(ctx context.Context, mux *runtime.ServeMux, server
 
 	})
 
+	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
 }
 
@@ -531,6 +582,28 @@ func RegisterCRMHandlerClient(ctx context.Context, mux *runtime.ServeMux, client
 
 	})
 
+	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
 }
 
@@ -544,6 +617,8 @@ var (
 	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 (
@@ -556,4 +631,6 @@ var (
 	forward_CRM_GetBreadcrumbs_0 = runtime.ForwardResponseMessage
 
 	forward_CRM_Order_0 = runtime.ForwardResponseMessage
+
+	forward_CRM_GetCard_0 = runtime.ForwardResponseMessage
 )

proto/main_grpc.pb.go

@@ -24,6 +24,7 @@ const (
 	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.
@@ -35,6 +36,7 @@ type CRMClient interface {
 	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 {
@@ -90,6 +92,15 @@ func (c *cRMClient) Order(ctx context.Context, in *OrderReq, opts ...grpc.CallOp
 	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
@@ -99,6 +110,7 @@ type CRMServer interface {
 	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()
 }
 
@@ -121,6 +133,9 @@ func (UnimplementedCRMServer) GetBreadcrumbs(context.Context, *GetBreadcrumbsReq
 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.
@@ -224,6 +239,24 @@ func _CRM_Order_Handler(srv interface{}, ctx context.Context, dec func(interface
 	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)
@@ -251,6 +284,10 @@ var CRM_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "Order",
 			Handler:    _CRM_Order_Handler,
 		},
+		{
+			MethodName: "GetCard",
+			Handler:    _CRM_GetCard_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "main.proto",

resources/main.swagger.json

@@ -47,6 +47,42 @@
         ]
       }
     },
+    "/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",
+                "$ref": "#/definitions/crmOrderItem"
+              }
+            }
+          }
+        ],
+        "tags": [
+          "CRM"
+        ]
+      }
+    },
     "/catalog": {
       "get": {
         "operationId": "CRM_GetCatalog",
@@ -201,6 +237,57 @@
         }
       }
     },
+    "crmCardItem": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string",
+          "format": "int64"
+        },
+        "article": {
+          "type": "string"
+        },
+        "name": {
+          "type": "string"
+        },
+        "uri": {
+          "type": "string"
+        },
+        "images": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "unit": {
+          "type": "string"
+        },
+        "inventory": {
+          "type": "number",
+          "format": "double"
+        },
+        "count": {
+          "type": "string",
+          "format": "int64"
+        },
+        "amount": {
+          "type": "string",
+          "format": "int64"
+        }
+      }
+    },
+    "crmCardRsp": {
+      "type": "object",
+      "properties": {
+        "items": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/crmCardItem"
+          }
+        }
+      }
+    },
     "crmCatalogRsp": {
       "type": "object",
       "properties": {