Merge pull request #25 from ahmetb/frontend-ads

frontend: add integration for adservice

kubernetes-manifests/frontend.yaml

@@ -56,6 +56,8 @@ spec:
             value: "shippingservice:50051"
           - name: CHECKOUT_SERVICE_ADDR
             value: "checkoutservice:5050"
+          - name: AD_SERVICE_ADDR
+            value: "adservice:9555"
           resources:
             requests:
               cpu: 100m

src/frontend/genproto/demo.pb.go

@@ -35,7 +35,7 @@ func (m *CartItem) Reset()         { *m = CartItem{} }
 func (m *CartItem) String() string { return proto.CompactTextString(m) }
 func (*CartItem) ProtoMessage()    {}
 func (*CartItem) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{0}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{0}
 }
 func (m *CartItem) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CartItem.Unmarshal(m, b)
@@ -81,7 +81,7 @@ func (m *AddItemRequest) Reset()         { *m = AddItemRequest{} }
 func (m *AddItemRequest) String() string { return proto.CompactTextString(m) }
 func (*AddItemRequest) ProtoMessage()    {}
 func (*AddItemRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{1}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{1}
 }
 func (m *AddItemRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AddItemRequest.Unmarshal(m, b)
@@ -126,7 +126,7 @@ func (m *EmptyCartRequest) Reset()         { *m = EmptyCartRequest{} }
 func (m *EmptyCartRequest) String() string { return proto.CompactTextString(m) }
 func (*EmptyCartRequest) ProtoMessage()    {}
 func (*EmptyCartRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{2}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{2}
 }
 func (m *EmptyCartRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_EmptyCartRequest.Unmarshal(m, b)
@@ -164,7 +164,7 @@ func (m *GetCartRequest) Reset()         { *m = GetCartRequest{} }
 func (m *GetCartRequest) String() string { return proto.CompactTextString(m) }
 func (*GetCartRequest) ProtoMessage()    {}
 func (*GetCartRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{3}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{3}
 }
 func (m *GetCartRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetCartRequest.Unmarshal(m, b)
@@ -203,7 +203,7 @@ func (m *Cart) Reset()         { *m = Cart{} }
 func (m *Cart) String() string { return proto.CompactTextString(m) }
 func (*Cart) ProtoMessage()    {}
 func (*Cart) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{4}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{4}
 }
 func (m *Cart) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Cart.Unmarshal(m, b)
@@ -247,7 +247,7 @@ func (m *Empty) Reset()         { *m = Empty{} }
 func (m *Empty) String() string { return proto.CompactTextString(m) }
 func (*Empty) ProtoMessage()    {}
 func (*Empty) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{5}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{5}
 }
 func (m *Empty) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Empty.Unmarshal(m, b)
@@ -279,7 +279,7 @@ func (m *ListRecommendationsRequest) Reset()         { *m = ListRecommendationsR
 func (m *ListRecommendationsRequest) String() string { return proto.CompactTextString(m) }
 func (*ListRecommendationsRequest) ProtoMessage()    {}
 func (*ListRecommendationsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{6}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{6}
 }
 func (m *ListRecommendationsRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ListRecommendationsRequest.Unmarshal(m, b)
@@ -324,7 +324,7 @@ func (m *ListRecommendationsResponse) Reset()         { *m = ListRecommendations
 func (m *ListRecommendationsResponse) String() string { return proto.CompactTextString(m) }
 func (*ListRecommendationsResponse) ProtoMessage()    {}
 func (*ListRecommendationsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{7}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{7}
 }
 func (m *ListRecommendationsResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ListRecommendationsResponse.Unmarshal(m, b)
@@ -366,7 +366,7 @@ func (m *Product) Reset()         { *m = Product{} }
 func (m *Product) String() string { return proto.CompactTextString(m) }
 func (*Product) ProtoMessage()    {}
 func (*Product) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{8}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{8}
 }
 func (m *Product) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Product.Unmarshal(m, b)
@@ -432,7 +432,7 @@ func (m *ListProductsResponse) Reset()         { *m = ListProductsResponse{} }
 func (m *ListProductsResponse) String() string { return proto.CompactTextString(m) }
 func (*ListProductsResponse) ProtoMessage()    {}
 func (*ListProductsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{9}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{9}
 }
 func (m *ListProductsResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ListProductsResponse.Unmarshal(m, b)
@@ -470,7 +470,7 @@ func (m *GetProductRequest) Reset()         { *m = GetProductRequest{} }
 func (m *GetProductRequest) String() string { return proto.CompactTextString(m) }
 func (*GetProductRequest) ProtoMessage()    {}
 func (*GetProductRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{10}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{10}
 }
 func (m *GetProductRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetProductRequest.Unmarshal(m, b)
@@ -508,7 +508,7 @@ func (m *SearchProductsRequest) Reset()         { *m = SearchProductsRequest{} }
 func (m *SearchProductsRequest) String() string { return proto.CompactTextString(m) }
 func (*SearchProductsRequest) ProtoMessage()    {}
 func (*SearchProductsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{11}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{11}
 }
 func (m *SearchProductsRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_SearchProductsRequest.Unmarshal(m, b)
@@ -546,7 +546,7 @@ func (m *SearchProductsResponse) Reset()         { *m = SearchProductsResponse{}
 func (m *SearchProductsResponse) String() string { return proto.CompactTextString(m) }
 func (*SearchProductsResponse) ProtoMessage()    {}
 func (*SearchProductsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{12}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{12}
 }
 func (m *SearchProductsResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_SearchProductsResponse.Unmarshal(m, b)
@@ -585,7 +585,7 @@ func (m *GetQuoteRequest) Reset()         { *m = GetQuoteRequest{} }
 func (m *GetQuoteRequest) String() string { return proto.CompactTextString(m) }
 func (*GetQuoteRequest) ProtoMessage()    {}
 func (*GetQuoteRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{13}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{13}
 }
 func (m *GetQuoteRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetQuoteRequest.Unmarshal(m, b)
@@ -630,7 +630,7 @@ func (m *GetQuoteResponse) Reset()         { *m = GetQuoteResponse{} }
 func (m *GetQuoteResponse) String() string { return proto.CompactTextString(m) }
 func (*GetQuoteResponse) ProtoMessage()    {}
 func (*GetQuoteResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{14}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{14}
 }
 func (m *GetQuoteResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetQuoteResponse.Unmarshal(m, b)
@@ -669,7 +669,7 @@ func (m *ShipOrderRequest) Reset()         { *m = ShipOrderRequest{} }
 func (m *ShipOrderRequest) String() string { return proto.CompactTextString(m) }
 func (*ShipOrderRequest) ProtoMessage()    {}
 func (*ShipOrderRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{15}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{15}
 }
 func (m *ShipOrderRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ShipOrderRequest.Unmarshal(m, b)
@@ -714,7 +714,7 @@ func (m *ShipOrderResponse) Reset()         { *m = ShipOrderResponse{} }
 func (m *ShipOrderResponse) String() string { return proto.CompactTextString(m) }
 func (*ShipOrderResponse) ProtoMessage()    {}
 func (*ShipOrderResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{16}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{16}
 }
 func (m *ShipOrderResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ShipOrderResponse.Unmarshal(m, b)
@@ -756,7 +756,7 @@ func (m *Address) Reset()         { *m = Address{} }
 func (m *Address) String() string { return proto.CompactTextString(m) }
 func (*Address) ProtoMessage()    {}
 func (*Address) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{17}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{17}
 }
 func (m *Address) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Address.Unmarshal(m, b)
@@ -834,7 +834,7 @@ func (m *Money) Reset()         { *m = Money{} }
 func (m *Money) String() string { return proto.CompactTextString(m) }
 func (*Money) ProtoMessage()    {}
 func (*Money) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{18}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{18}
 }
 func (m *Money) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Money.Unmarshal(m, b)
@@ -887,7 +887,7 @@ func (m *GetSupportedCurrenciesResponse) Reset()         { *m = GetSupportedCurr
 func (m *GetSupportedCurrenciesResponse) String() string { return proto.CompactTextString(m) }
 func (*GetSupportedCurrenciesResponse) ProtoMessage()    {}
 func (*GetSupportedCurrenciesResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{19}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{19}
 }
 func (m *GetSupportedCurrenciesResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetSupportedCurrenciesResponse.Unmarshal(m, b)
@@ -927,7 +927,7 @@ func (m *CurrencyConversionRequest) Reset()         { *m = CurrencyConversionReq
 func (m *CurrencyConversionRequest) String() string { return proto.CompactTextString(m) }
 func (*CurrencyConversionRequest) ProtoMessage()    {}
 func (*CurrencyConversionRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{20}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{20}
 }
 func (m *CurrencyConversionRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CurrencyConversionRequest.Unmarshal(m, b)
@@ -975,7 +975,7 @@ func (m *CreditCardInfo) Reset()         { *m = CreditCardInfo{} }
 func (m *CreditCardInfo) String() string { return proto.CompactTextString(m) }
 func (*CreditCardInfo) ProtoMessage()    {}
 func (*CreditCardInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{21}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{21}
 }
 func (m *CreditCardInfo) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CreditCardInfo.Unmarshal(m, b)
@@ -1035,7 +1035,7 @@ func (m *ChargeRequest) Reset()         { *m = ChargeRequest{} }
 func (m *ChargeRequest) String() string { return proto.CompactTextString(m) }
 func (*ChargeRequest) ProtoMessage()    {}
 func (*ChargeRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{22}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{22}
 }
 func (m *ChargeRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ChargeRequest.Unmarshal(m, b)
@@ -1080,7 +1080,7 @@ func (m *ChargeResponse) Reset()         { *m = ChargeResponse{} }
 func (m *ChargeResponse) String() string { return proto.CompactTextString(m) }
 func (*ChargeResponse) ProtoMessage()    {}
 func (*ChargeResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{23}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{23}
 }
 func (m *ChargeResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ChargeResponse.Unmarshal(m, b)
@@ -1119,7 +1119,7 @@ func (m *OrderItem) Reset()         { *m = OrderItem{} }
 func (m *OrderItem) String() string { return proto.CompactTextString(m) }
 func (*OrderItem) ProtoMessage()    {}
 func (*OrderItem) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{24}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{24}
 }
 func (m *OrderItem) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_OrderItem.Unmarshal(m, b)
@@ -1168,7 +1168,7 @@ func (m *OrderResult) Reset()         { *m = OrderResult{} }
 func (m *OrderResult) String() string { return proto.CompactTextString(m) }
 func (*OrderResult) ProtoMessage()    {}
 func (*OrderResult) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{25}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{25}
 }
 func (m *OrderResult) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_OrderResult.Unmarshal(m, b)
@@ -1235,7 +1235,7 @@ func (m *SendOrderConfirmationRequest) Reset()         { *m = SendOrderConfirmat
 func (m *SendOrderConfirmationRequest) String() string { return proto.CompactTextString(m) }
 func (*SendOrderConfirmationRequest) ProtoMessage()    {}
 func (*SendOrderConfirmationRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{26}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{26}
 }
 func (m *SendOrderConfirmationRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_SendOrderConfirmationRequest.Unmarshal(m, b)
@@ -1284,7 +1284,7 @@ func (m *PlaceOrderRequest) Reset()         { *m = PlaceOrderRequest{} }
 func (m *PlaceOrderRequest) String() string { return proto.CompactTextString(m) }
 func (*PlaceOrderRequest) ProtoMessage()    {}
 func (*PlaceOrderRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{27}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{27}
 }
 func (m *PlaceOrderRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_PlaceOrderRequest.Unmarshal(m, b)
@@ -1350,7 +1350,7 @@ func (m *PlaceOrderResponse) Reset()         { *m = PlaceOrderResponse{} }
 func (m *PlaceOrderResponse) String() string { return proto.CompactTextString(m) }
 func (*PlaceOrderResponse) ProtoMessage()    {}
 func (*PlaceOrderResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_demo_e1d03823e14b5fb0, []int{28}
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{28}
 }
 func (m *PlaceOrderResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_PlaceOrderResponse.Unmarshal(m, b)
@@ -1377,6 +1377,131 @@ func (m *PlaceOrderResponse) GetOrder() *OrderResult {
 	return nil
 }
 
+type AdsRequest struct {
+	// List of important key words from the current page describing the context.
+	ContextKeys          []string `protobuf:"bytes,1,rep,name=context_keys,json=contextKeys" json:"context_keys,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *AdsRequest) Reset()         { *m = AdsRequest{} }
+func (m *AdsRequest) String() string { return proto.CompactTextString(m) }
+func (*AdsRequest) ProtoMessage()    {}
+func (*AdsRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{29}
+}
+func (m *AdsRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_AdsRequest.Unmarshal(m, b)
+}
+func (m *AdsRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_AdsRequest.Marshal(b, m, deterministic)
+}
+func (dst *AdsRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_AdsRequest.Merge(dst, src)
+}
+func (m *AdsRequest) XXX_Size() int {
+	return xxx_messageInfo_AdsRequest.Size(m)
+}
+func (m *AdsRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_AdsRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_AdsRequest proto.InternalMessageInfo
+
+func (m *AdsRequest) GetContextKeys() []string {
+	if m != nil {
+		return m.ContextKeys
+	}
+	return nil
+}
+
+type AdsResponse struct {
+	Ads                  []*Ad    `protobuf:"bytes,1,rep,name=ads" json:"ads,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *AdsResponse) Reset()         { *m = AdsResponse{} }
+func (m *AdsResponse) String() string { return proto.CompactTextString(m) }
+func (*AdsResponse) ProtoMessage()    {}
+func (*AdsResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{30}
+}
+func (m *AdsResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_AdsResponse.Unmarshal(m, b)
+}
+func (m *AdsResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_AdsResponse.Marshal(b, m, deterministic)
+}
+func (dst *AdsResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_AdsResponse.Merge(dst, src)
+}
+func (m *AdsResponse) XXX_Size() int {
+	return xxx_messageInfo_AdsResponse.Size(m)
+}
+func (m *AdsResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_AdsResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_AdsResponse proto.InternalMessageInfo
+
+func (m *AdsResponse) GetAds() []*Ad {
+	if m != nil {
+		return m.Ads
+	}
+	return nil
+}
+
+type Ad struct {
+	// url to redirect to when an ad is clicked.
+	RedirectUrl string `protobuf:"bytes,1,opt,name=redirect_url,json=redirectUrl" json:"redirect_url,omitempty"`
+	// short advertisement text to display.
+	Text                 string   `protobuf:"bytes,2,opt,name=text" json:"text,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Ad) Reset()         { *m = Ad{} }
+func (m *Ad) String() string { return proto.CompactTextString(m) }
+func (*Ad) ProtoMessage()    {}
+func (*Ad) Descriptor() ([]byte, []int) {
+	return fileDescriptor_demo_c812a73334c7ff0d, []int{31}
+}
+func (m *Ad) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Ad.Unmarshal(m, b)
+}
+func (m *Ad) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Ad.Marshal(b, m, deterministic)
+}
+func (dst *Ad) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Ad.Merge(dst, src)
+}
+func (m *Ad) XXX_Size() int {
+	return xxx_messageInfo_Ad.Size(m)
+}
+func (m *Ad) XXX_DiscardUnknown() {
+	xxx_messageInfo_Ad.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Ad proto.InternalMessageInfo
+
+func (m *Ad) GetRedirectUrl() string {
+	if m != nil {
+		return m.RedirectUrl
+	}
+	return ""
+}
+
+func (m *Ad) GetText() string {
+	if m != nil {
+		return m.Text
+	}
+	return ""
+}
+
 func init() {
 	proto.RegisterType((*CartItem)(nil), "hipstershop.CartItem")
 	proto.RegisterType((*AddItemRequest)(nil), "hipstershop.AddItemRequest")
@@ -1407,6 +1532,9 @@ func init() {
 	proto.RegisterType((*SendOrderConfirmationRequest)(nil), "hipstershop.SendOrderConfirmationRequest")
 	proto.RegisterType((*PlaceOrderRequest)(nil), "hipstershop.PlaceOrderRequest")
 	proto.RegisterType((*PlaceOrderResponse)(nil), "hipstershop.PlaceOrderResponse")
+	proto.RegisterType((*AdsRequest)(nil), "hipstershop.AdsRequest")
+	proto.RegisterType((*AdsResponse)(nil), "hipstershop.AdsResponse")
+	proto.RegisterType((*Ad)(nil), "hipstershop.Ad")
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -2127,95 +2255,165 @@ var _CheckoutService_serviceDesc = grpc.ServiceDesc{
 	Metadata: "demo.proto",
 }
 
-func init() { proto.RegisterFile("demo.proto", fileDescriptor_demo_e1d03823e14b5fb0) }
+// AdsServiceClient is the client API for AdsService service.
-
+//
-var fileDescriptor_demo_e1d03823e14b5fb0 = []byte{
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
-	// 1389 bytes of a gzipped FileDescriptorProto
+type AdsServiceClient interface {
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x57, 0xdd, 0x72, 0xd3, 0xc6,
+	GetAds(ctx context.Context, in *AdsRequest, opts ...grpc.CallOption) (*AdsResponse, error)
-	0x17, 0x8f, 0x12, 0x3b, 0xb6, 0x8f, 0x63, 0x27, 0xd9, 0x7f, 0xc2, 0xdf, 0x28, 0x7c, 0xa4, 0x9b,
+}
-	0x81, 0x42, 0x81, 0x94, 0x49, 0x3b, 0xc3, 0x45, 0x69, 0x29, 0x63, 0x32, 0xc6, 0x33, 0x50, 0xa8,
+
-	0x02, 0x1d, 0x3a, 0x74, 0xea, 0x11, 0xda, 0x05, 0xab, 0x44, 0x5a, 0xb1, 0xbb, 0xca, 0xd4, 0x5c,
+type adsServiceClient struct {
-	0xb6, 0x0f, 0xd0, 0xfb, 0x3e, 0x42, 0x5f, 0xa0, 0xef, 0xd0, 0xfb, 0xbe, 0x42, 0x9f, 0xa3, 0xb3,
+	cc *grpc.ClientConn
-	0x2b, 0xad, 0xbe, 0x62, 0x25, 0xe1, 0xa6, 0x77, 0xda, 0xb3, 0xbf, 0x3d, 0xe7, 0x77, 0xce, 0x9e,
+}
-	0x73, 0xf6, 0x08, 0x80, 0xd0, 0x80, 0xed, 0x46, 0x9c, 0x49, 0x86, 0xba, 0x53, 0x3f, 0x12, 0x92,
+
-	0x72, 0x31, 0x65, 0x11, 0xde, 0x87, 0xf6, 0xd0, 0xe5, 0x72, 0x2c, 0x69, 0x80, 0x2e, 0x02, 0x44,
+func NewAdsServiceClient(cc *grpc.ClientConn) AdsServiceClient {
-	0x9c, 0x91, 0xd8, 0x93, 0x13, 0x9f, 0x0c, 0xac, 0x6d, 0xeb, 0x5a, 0xc7, 0xe9, 0xa4, 0x92, 0x31,
+	return &adsServiceClient{cc}
-	0x41, 0x36, 0xb4, 0xdf, 0xc5, 0x6e, 0x28, 0x7d, 0x39, 0x1b, 0x2c, 0x6e, 0x5b, 0xd7, 0x9a, 0x4e,
+}
-	0xb6, 0xc6, 0xcf, 0xa0, 0x7f, 0x9f, 0x10, 0xa5, 0xc5, 0xa1, 0xef, 0x62, 0x2a, 0x24, 0xfa, 0x3f,
+
-	0xb4, 0x62, 0x41, 0x79, 0xae, 0x69, 0x59, 0x2d, 0xc7, 0x04, 0x5d, 0x87, 0x86, 0x2f, 0x69, 0xa0,
+func (c *adsServiceClient) GetAds(ctx context.Context, in *AdsRequest, opts ...grpc.CallOption) (*AdsResponse, error) {
-	0x55, 0x74, 0xf7, 0x36, 0x77, 0x0b, 0x6c, 0x76, 0x0d, 0x15, 0x47, 0x43, 0xf0, 0x0d, 0x58, 0xdb,
+	out := new(AdsResponse)
-	0x0f, 0x22, 0x39, 0x53, 0xe2, 0xd3, 0xf4, 0xe2, 0xeb, 0xd0, 0x1f, 0x51, 0x79, 0x26, 0xe8, 0x23,
+	err := c.cc.Invoke(ctx, "/hipstershop.AdsService/GetAds", in, out, opts...)
-	0x68, 0x28, 0x5c, 0x3d, 0xc7, 0x1b, 0xd0, 0x54, 0x04, 0xc4, 0x60, 0x71, 0x7b, 0xa9, 0x9e, 0x64,
+	if err != nil {
-	0x82, 0xc1, 0x2d, 0x68, 0x6a, 0x96, 0xf8, 0x3b, 0xb0, 0x1f, 0xf9, 0x42, 0x3a, 0xd4, 0x63, 0x41,
+		return nil, err
-	0x40, 0x43, 0xe2, 0x4a, 0x9f, 0x85, 0xe2, 0xd4, 0x80, 0x5c, 0x86, 0x6e, 0x1e, 0xf6, 0xc4, 0x64,
+	}
-	0xc7, 0x81, 0x2c, 0xee, 0x02, 0x7f, 0x05, 0x5b, 0x73, 0xf5, 0x8a, 0x88, 0x85, 0x82, 0x56, 0xcf,
+	return out, nil
-	0x5b, 0xc7, 0xce, 0xff, 0x6e, 0x41, 0xeb, 0x69, 0xb2, 0x44, 0x7d, 0x58, 0xcc, 0x08, 0x2c, 0xfa,
+}
-	0x04, 0x21, 0x68, 0x84, 0x6e, 0x40, 0xf5, 0x6d, 0x74, 0x1c, 0xfd, 0x8d, 0xb6, 0xa1, 0x4b, 0xa8,
+
-	0xf0, 0xb8, 0x1f, 0x29, 0x43, 0x83, 0x25, 0xbd, 0x55, 0x14, 0xa1, 0x01, 0xb4, 0x22, 0xdf, 0x93,
+// AdsServiceServer is the server API for AdsService service.
-	0x31, 0xa7, 0x83, 0x86, 0xde, 0x35, 0x4b, 0xf4, 0x29, 0x74, 0x22, 0xee, 0x7b, 0x74, 0x12, 0x0b,
+type AdsServiceServer interface {
-	0x32, 0x68, 0xea, 0x2b, 0x46, 0xa5, 0xe8, 0x3d, 0x66, 0x21, 0x9d, 0x39, 0x6d, 0x0d, 0x7a, 0x2e,
+	GetAds(context.Context, *AdsRequest) (*AdsResponse, error)
-	0x08, 0x7e, 0x08, 0x1b, 0xca, 0xb9, 0x94, 0x5f, 0xee, 0xd5, 0x6d, 0x68, 0xa7, 0x2e, 0x24, 0x2e,
+}
-	0x75, 0xf7, 0x36, 0x4a, 0x7a, 0xd2, 0x03, 0x4e, 0x86, 0xc2, 0x3b, 0xb0, 0x3e, 0xa2, 0x46, 0x91,
+
-	0x89, 0x7a, 0xc5, 0x5f, 0x7c, 0x0b, 0x36, 0x0f, 0xa8, 0xcb, 0xbd, 0x69, 0x6e, 0x30, 0x01, 0x6e,
+func RegisterAdsServiceServer(s *grpc.Server, srv AdsServiceServer) {
-	0x40, 0xf3, 0x5d, 0x4c, 0xf9, 0x2c, 0xc5, 0x26, 0x0b, 0xfc, 0x10, 0xce, 0x55, 0xe1, 0x29, 0xbf,
+	s.RegisterService(&_AdsService_serviceDesc, srv)
-	0x5d, 0x68, 0x71, 0x2a, 0xe2, 0xc3, 0x53, 0xe8, 0x19, 0x10, 0x0e, 0x61, 0x75, 0x44, 0xe5, 0xb7,
+}
-	0x31, 0x93, 0xd4, 0x98, 0xdc, 0x85, 0x96, 0x4b, 0x08, 0xa7, 0x42, 0x68, 0xa3, 0x55, 0x15, 0xf7,
+
-	0x93, 0x3d, 0xc7, 0x80, 0x3e, 0x2c, 0x2b, 0xef, 0xc3, 0x5a, 0x6e, 0x2f, 0xe5, 0x7c, 0x0b, 0xda,
+func _AdsService_GetAds_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	0x1e, 0x13, 0x52, 0xdf, 0x8d, 0x55, 0x7b, 0x37, 0x2d, 0x85, 0x51, 0x57, 0xc3, 0x60, 0xed, 0x60,
+	in := new(AdsRequest)
-	0xea, 0x47, 0x4f, 0x38, 0xa1, 0xfc, 0x3f, 0xe1, 0xfc, 0x39, 0xac, 0x17, 0x0c, 0xe6, 0xe9, 0x2d,
+	if err := dec(in); err != nil {
-	0xb9, 0xeb, 0xbd, 0xf5, 0xc3, 0x37, 0x79, 0xed, 0x80, 0x11, 0x8d, 0x09, 0xfe, 0xcd, 0x82, 0x56,
+		return nil, err
-	0x6a, 0x17, 0x5d, 0x81, 0xbe, 0x90, 0x9c, 0x52, 0x39, 0x29, 0xb2, 0xec, 0x38, 0xbd, 0x44, 0x6a,
+	}
-	0x60, 0x08, 0x1a, 0x9e, 0x69, 0x63, 0x1d, 0x47, 0x7f, 0xab, 0x04, 0x10, 0xd2, 0x95, 0x34, 0xcd,
+	if interceptor == nil {
-	0xf7, 0x64, 0xa1, 0x32, 0xdd, 0x63, 0x71, 0x28, 0xf9, 0xcc, 0x64, 0x7a, 0xba, 0x44, 0xe7, 0xa1,
+		return srv.(AdsServiceServer).GetAds(ctx, in)
-	0xfd, 0xde, 0x8f, 0x26, 0x1e, 0x23, 0x54, 0x27, 0x7a, 0xd3, 0x69, 0xbd, 0xf7, 0xa3, 0x21, 0x23,
+	}
-	0x14, 0xbf, 0x80, 0xa6, 0x0e, 0x25, 0xda, 0x81, 0x9e, 0x17, 0x73, 0x4e, 0x43, 0x6f, 0x96, 0x00,
+	info := &grpc.UnaryServerInfo{
-	0x13, 0x36, 0x2b, 0x46, 0xa8, 0xd0, 0xca, 0x70, 0x1c, 0xfa, 0x52, 0x68, 0x36, 0x4b, 0x4e, 0xb2,
+		Server:     srv,
-	0x50, 0xd2, 0xd0, 0x0d, 0x99, 0xd0, 0x74, 0x9a, 0x4e, 0xb2, 0xc0, 0x23, 0xb8, 0x34, 0xa2, 0xf2,
+		FullMethod: "/hipstershop.AdsService/GetAds",
-	0x20, 0x8e, 0x22, 0xc6, 0x25, 0x25, 0xc3, 0x44, 0x8f, 0x4f, 0xf3, 0xbc, 0xbc, 0x02, 0xfd, 0x92,
+	}
-	0x49, 0xd3, 0x10, 0x7a, 0x45, 0x9b, 0x02, 0xff, 0x00, 0xe7, 0x87, 0x99, 0x20, 0x3c, 0xa2, 0x5c,
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-	0xf8, 0x2c, 0x34, 0x97, 0x7c, 0x15, 0x1a, 0xaf, 0x39, 0x0b, 0x4e, 0xc8, 0x11, 0xbd, 0xaf, 0x5a,
+		return srv.(AdsServiceServer).GetAds(ctx, req.(*AdsRequest))
-	0x9a, 0x64, 0x89, 0x63, 0x49, 0x24, 0x97, 0x25, 0xd3, 0x01, 0xf8, 0xc7, 0x82, 0xfe, 0x90, 0x53,
+	}
-	0xe2, 0xab, 0x7e, 0x4c, 0xc6, 0xe1, 0x6b, 0x86, 0x6e, 0x02, 0xf2, 0xb4, 0x64, 0xe2, 0xb9, 0x9c,
+	return interceptor(ctx, in, info, handler)
-	0x4c, 0xc2, 0x38, 0x78, 0x45, 0x79, 0x1a, 0x8f, 0x35, 0x2f, 0xc3, 0x7e, 0xa3, 0xe5, 0xe8, 0x2a,
+}
-	0xac, 0x16, 0xd1, 0xde, 0xd1, 0x51, 0xfa, 0xe4, 0xf4, 0x72, 0xe8, 0xf0, 0xe8, 0x08, 0x7d, 0x09,
+
-	0x5b, 0x45, 0x1c, 0xfd, 0x39, 0xf2, 0xb9, 0x6e, 0x8f, 0x93, 0x19, 0x75, 0x79, 0x1a, 0xbb, 0x41,
+var _AdsService_serviceDesc = grpc.ServiceDesc{
-	0x7e, 0x66, 0x3f, 0x03, 0x7c, 0x4f, 0x5d, 0x8e, 0xee, 0xc1, 0x85, 0x9a, 0xe3, 0x01, 0x0b, 0xe5,
+	ServiceName: "hipstershop.AdsService",
-	0x54, 0x5f, 0x79, 0xd3, 0x39, 0x3f, 0xef, 0xfc, 0x63, 0x05, 0xc0, 0x33, 0xe8, 0x0d, 0xa7, 0x2e,
+	HandlerType: (*AdsServiceServer)(nil),
-	0x7f, 0x93, 0xd5, 0xf4, 0x27, 0xb0, 0xec, 0x06, 0x2a, 0x43, 0x4e, 0x08, 0x5e, 0x8a, 0x40, 0x77,
+	Methods: []grpc.MethodDesc{
-	0xa1, 0x5b, 0xb0, 0x9e, 0x3e, 0x88, 0x5b, 0xe5, 0x0a, 0x29, 0x05, 0xd1, 0x81, 0x9c, 0x09, 0xbe,
+		{
-	0x03, 0x7d, 0x63, 0x3a, 0xbf, 0x7a, 0xc9, 0xdd, 0x50, 0xb8, 0x9e, 0x76, 0x21, 0x2b, 0x96, 0x5e,
+			MethodName: "GetAds",
-	0x41, 0x3a, 0x26, 0xf8, 0x47, 0xe8, 0xe8, 0x0a, 0xd3, 0x6f, 0xbe, 0x79, 0x8d, 0xad, 0x53, 0x5f,
+			Handler:    _AdsService_GetAds_Handler,
-	0x63, 0x95, 0x15, 0xaa, 0x33, 0xa4, 0x3c, 0xe7, 0x66, 0x85, 0xda, 0xc7, 0xbf, 0x2c, 0x42, 0xd7,
+		},
-	0x94, 0x70, 0x7c, 0x28, 0x55, 0xa1, 0x30, 0xb5, 0xcc, 0x09, 0xb5, 0xf4, 0x7a, 0x4c, 0xd0, 0x6d,
+	},
-	0xd8, 0x10, 0x53, 0x3f, 0x8a, 0x54, 0x6d, 0x17, 0x8b, 0x3c, 0xc9, 0x26, 0x64, 0xf6, 0x9e, 0x65,
+	Streams:  []grpc.StreamDesc{},
-	0xc5, 0x8e, 0xee, 0x40, 0x2f, 0x3b, 0xa1, 0xd9, 0x2c, 0xd5, 0xb2, 0x59, 0x31, 0xc0, 0x21, 0x13,
+	Metadata: "demo.proto",
-	0x12, 0xdd, 0x83, 0xb5, 0xec, 0xa0, 0xe9, 0x0d, 0x8d, 0x13, 0x3a, 0xd8, 0xaa, 0x41, 0x9b, 0x9e,
+}
-	0x71, 0xd3, 0x74, 0xb2, 0xa6, 0xee, 0x64, 0xe7, 0x4a, 0xa7, 0xb2, 0x80, 0x9a, 0x56, 0x46, 0xe0,
+
-	0xc2, 0x01, 0x0d, 0x89, 0x96, 0x0f, 0x59, 0xf8, 0xda, 0xe7, 0x81, 0x4e, 0x9b, 0xc2, 0x73, 0x43,
+func init() { proto.RegisterFile("demo.proto", fileDescriptor_demo_c812a73334c7ff0d) }
-	0x03, 0xd7, 0x3f, 0x34, 0xcf, 0x8d, 0x5e, 0xa0, 0x5d, 0x68, 0xea, 0xd0, 0xa4, 0x31, 0x1e, 0x1c,
+
-	0xb7, 0x91, 0xc4, 0xd4, 0x49, 0x60, 0xf8, 0x6f, 0x0b, 0xd6, 0x9f, 0x1e, 0xba, 0x1e, 0x2d, 0xf5,
+var fileDescriptor_demo_c812a73334c7ff0d = []byte{
-	0xe8, 0xda, 0x49, 0x63, 0x07, 0x7a, 0x7a, 0xc3, 0xb4, 0x82, 0x34, 0xce, 0x2b, 0x4a, 0x68, 0xba,
+	// 1484 bytes of a gzipped FileDescriptorProto
-	0x41, 0xb1, 0xc3, 0x2f, 0x9d, 0xa5, 0xc3, 0x67, 0x9e, 0x34, 0x8b, 0x9e, 0x54, 0x72, 0x7b, 0xf9,
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x58, 0xdd, 0x72, 0x13, 0xb7,
-	0xc3, 0x72, 0xfb, 0x01, 0xa0, 0xa2, 0x5b, 0xd9, 0x93, 0x9b, 0x46, 0xc7, 0x3a, 0x53, 0x74, 0xf6,
+	0x17, 0xcf, 0x26, 0x71, 0x1c, 0x1f, 0xc7, 0x76, 0xa2, 0x7f, 0x02, 0x66, 0xc3, 0x47, 0x50, 0x06,
-	0xfe, 0xb2, 0xa0, 0xab, 0x72, 0xf8, 0x80, 0xf2, 0x23, 0xdf, 0xa3, 0xe8, 0xae, 0x7e, 0x27, 0x74,
+	0xfe, 0x50, 0x20, 0x30, 0x69, 0x67, 0xb8, 0x00, 0x4a, 0x33, 0x26, 0x63, 0x3c, 0x40, 0xa1, 0x1b,
-	0xda, 0x6f, 0x55, 0x7d, 0x2a, 0x8c, 0xae, 0x76, 0x39, 0x99, 0x92, 0xd9, 0x6e, 0x01, 0x7d, 0x01,
+	0xe8, 0xd0, 0xa1, 0x53, 0xcf, 0xb2, 0x12, 0x78, 0x4b, 0x76, 0xb5, 0x48, 0xda, 0x0c, 0xe6, 0xb2,
-	0xad, 0x74, 0xbe, 0xac, 0x9c, 0x2e, 0x4f, 0x9d, 0xf6, 0xfa, 0xb1, 0x1a, 0xc2, 0x0b, 0xe8, 0x6b,
+	0x7d, 0x80, 0xde, 0xf7, 0x11, 0xfa, 0x02, 0x7d, 0x87, 0xde, 0xf7, 0x15, 0xfa, 0x1c, 0x1d, 0x69,
-	0xe8, 0x64, 0x93, 0x2c, 0xba, 0x78, 0x5c, 0x7f, 0x51, 0xc1, 0x5c, 0xf3, 0x7b, 0xbf, 0x5a, 0xb0,
+	0x57, 0xfb, 0x65, 0x3b, 0x81, 0x9b, 0xde, 0xad, 0xa4, 0x9f, 0xce, 0xf9, 0x9d, 0xa3, 0xf3, 0x65,
-	0x59, 0x9e, 0x00, 0x8d, 0x5b, 0x3f, 0xc1, 0xff, 0xe6, 0x8c, 0x87, 0xe8, 0xe3, 0x92, 0x9a, 0xfa,
+	0x03, 0x10, 0x1a, 0xb0, 0x9d, 0x88, 0x33, 0xc9, 0x50, 0x73, 0xe4, 0x47, 0x42, 0x52, 0x2e, 0x46,
-	0xc1, 0xd4, 0xbe, 0x76, 0x3a, 0x30, 0xb9, 0x00, 0xc5, 0x62, 0x11, 0x36, 0xd3, 0xd1, 0x66, 0xe8,
+	0x2c, 0xc2, 0xfb, 0xb0, 0xdc, 0x73, 0xb9, 0x1c, 0x48, 0x1a, 0xa0, 0x73, 0x00, 0x11, 0x67, 0x24,
-	0x4a, 0xf7, 0x90, 0xbd, 0x31, 0x2c, 0x46, 0xb0, 0x52, 0x9c, 0xe3, 0xd0, 0x1c, 0x2f, 0xec, 0x8f,
+	0xf6, 0xe4, 0xd0, 0x27, 0x5d, 0x6b, 0xcb, 0xba, 0xd2, 0x70, 0x1a, 0xe9, 0xce, 0x80, 0x20, 0x1b,
-	0x8e, 0x59, 0xaa, 0x8e, 0x55, 0x78, 0x01, 0x3d, 0x00, 0xc8, 0xc7, 0x38, 0x74, 0xa9, 0x1a, 0xea,
+	0x96, 0xdf, 0xc7, 0x6e, 0x28, 0x7d, 0x39, 0xee, 0xce, 0x6f, 0x59, 0x57, 0x6a, 0x4e, 0xb6, 0xc6,
-	0xf2, 0x7c, 0x67, 0xcf, 0x9d, 0xba, 0xf0, 0x02, 0x7a, 0x09, 0xfd, 0xf2, 0xe0, 0x86, 0x70, 0x09,
+	0xcf, 0xa1, 0xbd, 0x47, 0x88, 0x92, 0xe2, 0xd0, 0xf7, 0x31, 0x15, 0x12, 0x9d, 0x86, 0x7a, 0x2c,
-	0x39, 0x77, 0x08, 0xb4, 0x77, 0x4e, 0xc4, 0x64, 0x51, 0xf8, 0xc3, 0x82, 0xd5, 0x83, 0xb4, 0x3d,
+	0x28, 0xcf, 0x25, 0x2d, 0xa9, 0xe5, 0x80, 0xa0, 0xab, 0xb0, 0xe8, 0x4b, 0x1a, 0x68, 0x11, 0xcd,
-	0x18, 0xff, 0xc7, 0xd0, 0x36, 0xf3, 0x16, 0xba, 0x50, 0x25, 0x5d, 0x1c, 0xfb, 0xec, 0x8b, 0x35,
+	0xdd, 0x8d, 0x9d, 0x02, 0x9b, 0x1d, 0x43, 0xc5, 0xd1, 0x10, 0x7c, 0x0d, 0x56, 0xf7, 0x83, 0x48,
-	0xbb, 0x59, 0x04, 0x1e, 0x41, 0x27, 0x1b, 0x83, 0x2a, 0xc9, 0x52, 0x9d, 0xc7, 0xec, 0x4b, 0x75,
+	0x8e, 0xd5, 0xf6, 0x49, 0x72, 0xf1, 0x55, 0x68, 0xf7, 0xa9, 0xfc, 0x24, 0xe8, 0x63, 0x58, 0x54,
-	0xdb, 0x19, 0xd9, 0x3f, 0x2d, 0x58, 0x35, 0xc5, 0x6d, 0xc8, 0xbe, 0x84, 0x73, 0xf3, 0xc7, 0x88,
+	0xb8, 0xd9, 0x1c, 0xaf, 0x41, 0x4d, 0x11, 0x10, 0xdd, 0xf9, 0xad, 0x85, 0xd9, 0x24, 0x13, 0x0c,
-	0xb9, 0xd7, 0x76, 0xa3, 0x4a, 0xf8, 0x84, 0xf9, 0x03, 0x2f, 0xa0, 0x11, 0xb4, 0x92, 0x91, 0x42,
+	0xae, 0x43, 0x4d, 0xb3, 0xc4, 0xdf, 0x83, 0xfd, 0xd8, 0x17, 0xd2, 0xa1, 0x1e, 0x0b, 0x02, 0x1a,
-	0xa2, 0xab, 0xe5, 0x5a, 0xa8, 0x1b, 0x38, 0xec, 0x39, 0xed, 0x1b, 0x2f, 0xec, 0x3d, 0x87, 0xfe,
+	0x12, 0x57, 0xfa, 0x2c, 0x14, 0x27, 0x3a, 0xe4, 0x02, 0x34, 0x73, 0xb7, 0x27, 0x2a, 0x1b, 0x0e,
-	0x53, 0x77, 0x16, 0xd0, 0x30, 0xab, 0xe0, 0x21, 0x2c, 0x27, 0x6f, 0x1e, 0xb2, 0xcb, 0x9a, 0x8b,
+	0x64, 0x7e, 0x17, 0xf8, 0x6b, 0xd8, 0x9c, 0x2a, 0x57, 0x44, 0x2c, 0x14, 0xb4, 0x7a, 0xdf, 0x9a,
-	0x6f, 0xb0, 0xbd, 0x35, 0x77, 0x2f, 0x0b, 0xc8, 0x14, 0x56, 0xf6, 0x55, 0x8f, 0x32, 0x4a, 0x5f,
+	0xb8, 0xff, 0xbb, 0x05, 0xf5, 0x67, 0xc9, 0x12, 0xb5, 0x61, 0x3e, 0x23, 0x30, 0xef, 0x13, 0x84,
-	0xa8, 0x5f, 0x82, 0x39, 0xad, 0x1a, 0x5d, 0xaf, 0x64, 0x43, 0x7d, 0x3b, 0xaf, 0xa9, 0xd9, 0x57,
+	0x60, 0x31, 0x74, 0x03, 0xaa, 0x5f, 0xa3, 0xe1, 0xe8, 0x6f, 0xb4, 0x05, 0x4d, 0x42, 0x85, 0xc7,
-	0xb0, 0x3a, 0x9c, 0x52, 0xef, 0x2d, 0x8b, 0x33, 0x0f, 0x9e, 0x00, 0xe4, 0x9d, 0xad, 0x92, 0xdd,
+	0xfd, 0x48, 0x29, 0xea, 0x2e, 0xe8, 0xa3, 0xe2, 0x16, 0xea, 0x42, 0x3d, 0xf2, 0x3d, 0x19, 0x73,
-	0xc7, 0x3a, 0xb9, 0x7d, 0xb9, 0x76, 0xdf, 0x78, 0xf3, 0x6a, 0x59, 0xff, 0xd4, 0x7f, 0xf6, 0x6f,
+	0xda, 0x5d, 0xd4, 0xa7, 0x66, 0x89, 0x6e, 0x42, 0x23, 0xe2, 0xbe, 0x47, 0x87, 0xb1, 0x20, 0xdd,
-	0x00, 0x00, 0x00, 0xff, 0xff, 0x59, 0xab, 0x01, 0x43, 0xe2, 0x0f, 0x00, 0x00,
+	0x9a, 0x7e, 0x62, 0x54, 0xf2, 0xde, 0x13, 0x16, 0xd2, 0xb1, 0xb3, 0xac, 0x41, 0x2f, 0x04, 0xc1,
+	0x0f, 0x61, 0x5d, 0x19, 0x97, 0xf2, 0xcb, 0xad, 0xba, 0x05, 0xcb, 0xa9, 0x09, 0x89, 0x49, 0xcd,
+	0xdd, 0xf5, 0x92, 0x9c, 0xf4, 0x82, 0x93, 0xa1, 0xf0, 0x36, 0xac, 0xf5, 0xa9, 0x11, 0x64, 0xbc,
+	0x5e, 0xb1, 0x17, 0xdf, 0x80, 0x8d, 0x03, 0xea, 0x72, 0x6f, 0x94, 0x2b, 0x4c, 0x80, 0xeb, 0x50,
+	0x7b, 0x1f, 0x53, 0x3e, 0x4e, 0xb1, 0xc9, 0x02, 0x3f, 0x84, 0x53, 0x55, 0x78, 0xca, 0x6f, 0x07,
+	0xea, 0x9c, 0x8a, 0xf8, 0xf0, 0x04, 0x7a, 0x06, 0x84, 0x43, 0xe8, 0xf4, 0xa9, 0xfc, 0x2e, 0x66,
+	0x92, 0x1a, 0x95, 0x3b, 0x50, 0x77, 0x09, 0xe1, 0x54, 0x08, 0xad, 0xb4, 0x2a, 0x62, 0x2f, 0x39,
+	0x73, 0x0c, 0xe8, 0xf3, 0xa2, 0x72, 0x0f, 0x56, 0x73, 0x7d, 0x29, 0xe7, 0x1b, 0xb0, 0xec, 0x31,
+	0x21, 0xf5, 0xdb, 0x58, 0x33, 0xdf, 0xa6, 0xae, 0x30, 0xea, 0x69, 0x18, 0xac, 0x1e, 0x8c, 0xfc,
+	0xe8, 0x29, 0x27, 0x94, 0xff, 0x27, 0x9c, 0xbf, 0x82, 0xb5, 0x82, 0xc2, 0x3c, 0xbc, 0x25, 0x77,
+	0xbd, 0x77, 0x7e, 0xf8, 0x36, 0xcf, 0x1d, 0x30, 0x5b, 0x03, 0x82, 0x7f, 0xb3, 0xa0, 0x9e, 0xea,
+	0x45, 0x97, 0xa0, 0x2d, 0x24, 0xa7, 0x54, 0x0e, 0x8b, 0x2c, 0x1b, 0x4e, 0x2b, 0xd9, 0x35, 0x30,
+	0x04, 0x8b, 0x9e, 0x29, 0x63, 0x0d, 0x47, 0x7f, 0xab, 0x00, 0x10, 0xd2, 0x95, 0x34, 0x8d, 0xf7,
+	0x64, 0xa1, 0x22, 0xdd, 0x63, 0x71, 0x28, 0xf9, 0xd8, 0x44, 0x7a, 0xba, 0x44, 0x67, 0x60, 0xf9,
+	0xa3, 0x1f, 0x0d, 0x3d, 0x46, 0xa8, 0x0e, 0xf4, 0x9a, 0x53, 0xff, 0xe8, 0x47, 0x3d, 0x46, 0x28,
+	0x7e, 0x09, 0x35, 0xed, 0x4a, 0xb4, 0x0d, 0x2d, 0x2f, 0xe6, 0x9c, 0x86, 0xde, 0x38, 0x01, 0x26,
+	0x6c, 0x56, 0xcc, 0xa6, 0x42, 0x2b, 0xc5, 0x71, 0xe8, 0x4b, 0xa1, 0xd9, 0x2c, 0x38, 0xc9, 0x42,
+	0xed, 0x86, 0x6e, 0xc8, 0x84, 0xa6, 0x53, 0x73, 0x92, 0x05, 0xee, 0xc3, 0xf9, 0x3e, 0x95, 0x07,
+	0x71, 0x14, 0x31, 0x2e, 0x29, 0xe9, 0x25, 0x72, 0x7c, 0x9a, 0xc7, 0xe5, 0x25, 0x68, 0x97, 0x54,
+	0x9a, 0x82, 0xd0, 0x2a, 0xea, 0x14, 0xf8, 0x47, 0x38, 0xd3, 0xcb, 0x36, 0xc2, 0x23, 0xca, 0x85,
+	0xcf, 0x42, 0xf3, 0xc8, 0x97, 0x61, 0xf1, 0x0d, 0x67, 0xc1, 0x31, 0x31, 0xa2, 0xcf, 0x55, 0x49,
+	0x93, 0x2c, 0x31, 0x2c, 0xf1, 0xe4, 0x92, 0x64, 0xda, 0x01, 0xff, 0x58, 0xd0, 0xee, 0x71, 0x4a,
+	0x7c, 0x55, 0x8f, 0xc9, 0x20, 0x7c, 0xc3, 0xd0, 0x75, 0x40, 0x9e, 0xde, 0x19, 0x7a, 0x2e, 0x27,
+	0xc3, 0x30, 0x0e, 0x5e, 0x53, 0x9e, 0xfa, 0x63, 0xd5, 0xcb, 0xb0, 0xdf, 0xea, 0x7d, 0x74, 0x19,
+	0x3a, 0x45, 0xb4, 0x77, 0x74, 0x94, 0xb6, 0x9c, 0x56, 0x0e, 0xed, 0x1d, 0x1d, 0xa1, 0x7b, 0xb0,
+	0x59, 0xc4, 0xd1, 0x0f, 0x91, 0xcf, 0x75, 0x79, 0x1c, 0x8e, 0xa9, 0xcb, 0x53, 0xdf, 0x75, 0xf3,
+	0x3b, 0xfb, 0x19, 0xe0, 0x07, 0xea, 0x72, 0x74, 0x1f, 0xce, 0xce, 0xb8, 0x1e, 0xb0, 0x50, 0x8e,
+	0xf4, 0x93, 0xd7, 0x9c, 0x33, 0xd3, 0xee, 0x3f, 0x51, 0x00, 0x3c, 0x86, 0x56, 0x6f, 0xe4, 0xf2,
+	0xb7, 0x59, 0x4e, 0x7f, 0x01, 0x4b, 0x6e, 0xa0, 0x22, 0xe4, 0x18, 0xe7, 0xa5, 0x08, 0x74, 0x17,
+	0x9a, 0x05, 0xed, 0x69, 0x43, 0xdc, 0x2c, 0x67, 0x48, 0xc9, 0x89, 0x0e, 0xe4, 0x4c, 0xf0, 0x6d,
+	0x68, 0x1b, 0xd5, 0xf9, 0xd3, 0x4b, 0xee, 0x86, 0xc2, 0xf5, 0xb4, 0x09, 0x59, 0xb2, 0xb4, 0x0a,
+	0xbb, 0x03, 0x82, 0x7f, 0x82, 0x86, 0xce, 0x30, 0xdd, 0xf3, 0x4d, 0x37, 0xb6, 0x4e, 0xec, 0xc6,
+	0x2a, 0x2a, 0x54, 0x65, 0x48, 0x79, 0x4e, 0x8d, 0x0a, 0x75, 0x8e, 0x7f, 0x99, 0x87, 0xa6, 0x49,
+	0xe1, 0xf8, 0x50, 0xaa, 0x44, 0x61, 0x6a, 0x99, 0x13, 0xaa, 0xeb, 0xf5, 0x80, 0xa0, 0x5b, 0xb0,
+	0x2e, 0x46, 0x7e, 0x14, 0xa9, 0xdc, 0x2e, 0x26, 0x79, 0x12, 0x4d, 0xc8, 0x9c, 0x3d, 0xcf, 0x92,
+	0x1d, 0xdd, 0x86, 0x56, 0x76, 0x43, 0xb3, 0x59, 0x98, 0xc9, 0x66, 0xc5, 0x00, 0x7b, 0x4c, 0x48,
+	0x74, 0x1f, 0x56, 0xb3, 0x8b, 0xa6, 0x36, 0x2c, 0x1e, 0x53, 0xc1, 0x3a, 0x06, 0x6d, 0x6a, 0xc6,
+	0x75, 0x53, 0xc9, 0x6a, 0xba, 0x92, 0x9d, 0x2a, 0xdd, 0xca, 0x1c, 0x6a, 0x4a, 0x19, 0x81, 0xb3,
+	0x07, 0x34, 0x24, 0x7a, 0xbf, 0xc7, 0xc2, 0x37, 0x3e, 0x0f, 0x74, 0xd8, 0x14, 0xda, 0x0d, 0x0d,
+	0x5c, 0xff, 0xd0, 0xb4, 0x1b, 0xbd, 0x40, 0x3b, 0x50, 0xd3, 0xae, 0x49, 0x7d, 0xdc, 0x9d, 0xd4,
+	0x91, 0xf8, 0xd4, 0x49, 0x60, 0xf8, 0x6f, 0x0b, 0xd6, 0x9e, 0x1d, 0xba, 0x1e, 0x2d, 0xd5, 0xe8,
+	0x99, 0x93, 0xc6, 0x36, 0xb4, 0xf4, 0x81, 0x29, 0x05, 0xa9, 0x9f, 0x57, 0xd4, 0xa6, 0xa9, 0x06,
+	0xc5, 0x0a, 0xbf, 0xf0, 0x29, 0x15, 0x3e, 0xb3, 0xa4, 0x56, 0xb4, 0xa4, 0x12, 0xdb, 0x4b, 0x9f,
+	0x17, 0xdb, 0x0f, 0x00, 0x15, 0xcd, 0xca, 0x5a, 0x6e, 0xea, 0x1d, 0xeb, 0xd3, 0xbc, 0x73, 0x13,
+	0x60, 0x8f, 0x64, 0x0d, 0xfe, 0x22, 0xac, 0x78, 0x2c, 0x94, 0xf4, 0x83, 0x1c, 0xbe, 0xa3, 0x63,
+	0x53, 0x16, 0x9b, 0xe9, 0xde, 0x23, 0x3a, 0x16, 0xf8, 0x16, 0x34, 0xf5, 0x85, 0x54, 0xdf, 0x45,
+	0x58, 0x70, 0x89, 0x69, 0xef, 0x9d, 0x8a, 0x17, 0x1c, 0x75, 0x86, 0xef, 0xc0, 0xfc, 0x1e, 0x51,
+	0xa2, 0x15, 0x77, 0x4e, 0x3d, 0x39, 0x8c, 0xb9, 0x79, 0xd3, 0xa6, 0xd9, 0x7b, 0xc1, 0x0f, 0x55,
+	0xc7, 0x51, 0x6a, 0x4c, 0xc7, 0x51, 0xdf, 0xbb, 0x7f, 0x59, 0xd0, 0x54, 0x39, 0x76, 0x40, 0xf9,
+	0x91, 0xef, 0x51, 0x74, 0x57, 0xf7, 0x31, 0x9d, 0x96, 0x9b, 0x55, 0x9f, 0x17, 0x46, 0x6b, 0xbb,
+	0x1c, 0xec, 0xc9, 0xec, 0x39, 0x87, 0xee, 0x40, 0x3d, 0x9d, 0x7f, 0x2b, 0xb7, 0xcb, 0x53, 0xb1,
+	0xbd, 0x36, 0x91, 0xe3, 0x78, 0x0e, 0x7d, 0x03, 0x8d, 0x6c, 0xd2, 0x46, 0xe7, 0x26, 0xe5, 0x17,
+	0x05, 0x4c, 0x55, 0xbf, 0xfb, 0xab, 0x05, 0x1b, 0xe5, 0x09, 0xd5, 0x98, 0xf5, 0x33, 0xfc, 0x6f,
+	0xca, 0xf8, 0x8a, 0xfe, 0x5f, 0x12, 0x33, 0x7b, 0x70, 0xb6, 0xaf, 0x9c, 0x0c, 0x4c, 0x1e, 0x4c,
+	0xb1, 0x98, 0x87, 0x8d, 0x74, 0xf4, 0xea, 0xb9, 0xd2, 0x3d, 0x64, 0x6f, 0x0d, 0x8b, 0x3e, 0xac,
+	0x14, 0xe7, 0x4c, 0x34, 0xc5, 0x0a, 0xfb, 0xe2, 0x84, 0xa6, 0xea, 0xd8, 0x87, 0xe7, 0xd0, 0x03,
+	0x80, 0x7c, 0xcc, 0x44, 0xe7, 0xab, 0xae, 0x2e, 0xcf, 0x9f, 0xf6, 0xd4, 0xa9, 0x10, 0xcf, 0xa1,
+	0x57, 0xd0, 0x2e, 0x0f, 0x96, 0x08, 0x97, 0x90, 0x53, 0x87, 0x54, 0x7b, 0xfb, 0x58, 0x4c, 0xe6,
+	0x85, 0x3f, 0x2c, 0xe8, 0x1c, 0xa4, 0xe5, 0xcb, 0xd8, 0x3f, 0x80, 0x65, 0x33, 0x0f, 0xa2, 0xb3,
+	0x55, 0xd2, 0xc5, 0xb1, 0xd4, 0x3e, 0x37, 0xe3, 0x34, 0xf3, 0xc0, 0x63, 0x68, 0x64, 0x63, 0x5a,
+	0x25, 0x58, 0xaa, 0xf3, 0xa2, 0x7d, 0x7e, 0xd6, 0x71, 0x46, 0xf6, 0x4f, 0x0b, 0x3a, 0xa6, 0xf8,
+	0x18, 0xb2, 0xaf, 0xe0, 0xd4, 0xf4, 0x31, 0x67, 0xea, 0xb3, 0x5d, 0xab, 0x12, 0x3e, 0x66, 0x3e,
+	0xc2, 0x73, 0xa8, 0x0f, 0xf5, 0x64, 0xe4, 0x91, 0xe8, 0x72, 0x39, 0x17, 0x66, 0x0d, 0x44, 0xf6,
+	0x94, 0xf6, 0x82, 0xe7, 0x76, 0x5f, 0x40, 0xfb, 0x99, 0x3b, 0x0e, 0x68, 0x98, 0x65, 0x70, 0x0f,
+	0x96, 0x92, 0x9e, 0x8c, 0xec, 0xb2, 0xe4, 0xe2, 0x8c, 0x60, 0x6f, 0x4e, 0x3d, 0xcb, 0x1c, 0x32,
+	0x82, 0x95, 0x7d, 0x55, 0x43, 0x8d, 0xd0, 0x97, 0xea, 0x27, 0xcb, 0x94, 0x56, 0x82, 0xae, 0x56,
+	0xa2, 0x61, 0x76, 0xbb, 0x99, 0x91, 0xb3, 0xaf, 0xa1, 0xd3, 0x1b, 0x51, 0xef, 0x1d, 0x8b, 0x33,
+	0x0b, 0x9e, 0x02, 0xe4, 0x95, 0xb7, 0x12, 0xdd, 0x13, 0x9d, 0xc6, 0xbe, 0x30, 0xf3, 0x3c, 0xb3,
+	0xe6, 0x91, 0x2e, 0xc2, 0x46, 0xfc, 0x3d, 0x58, 0xea, 0xab, 0x31, 0x5c, 0xa0, 0xd3, 0x95, 0x0a,
+	0x97, 0xc5, 0x78, 0x77, 0xf2, 0xc0, 0x08, 0x7b, 0xbd, 0xa4, 0xff, 0xc1, 0xf8, 0xf2, 0xdf, 0x00,
+	0x00, 0x00, 0xff, 0xff, 0x0d, 0x93, 0x0f, 0x58, 0xcf, 0x10, 0x00, 0x00,
 }

src/frontend/handlers.go

@@ -15,8 +15,10 @@
 package main
 
 import (
+	"context"
 	"fmt"
 	"html/template"
+	"math/rand"
 	"net/http"
 	"os"
 	"strconv"
@@ -78,6 +80,7 @@ func (fe *frontendServer) homeHandler(w http.ResponseWriter, r *http.Request) {
 		"products":      ps,
 		"cart_size":     len(cart),
 		"banner_color":  os.Getenv("BANNER_COLOR"), // illustrates canary deployments
+		"ad":              fe.chooseAd(r.Context(), log),
 	}); err != nil {
 		log.Error(err)
 	}
@@ -130,6 +133,7 @@ func (fe *frontendServer) productHandler(w http.ResponseWriter, r *http.Request)
 	if err := templates.ExecuteTemplate(w, "product", map[string]interface{}{
 		"session_id":      sessionID(r),
 		"request_id":      r.Context().Value(ctxKeyRequestID{}),
+		"ad":              fe.chooseAd(r.Context(), log),
 		"user_currency":   currentCurrency(r),
 		"currencies":      currencies,
 		"product":         product,
@@ -340,6 +344,17 @@ func (fe *frontendServer) setCurrencyHandler(w http.ResponseWriter, r *http.Requ
 	w.WriteHeader(http.StatusFound)
 }
 
+// chooseAd queries for advertisements available and randomly chooses one, if
+// available. It ignores the error retrieving the ad since it is not critical.
+func (fe *frontendServer) chooseAd(ctx context.Context, log logrus.FieldLogger) *pb.Ad {
+	ads, err := fe.getAd(ctx)
+	if err != nil {
+		log.WithField("error", err).Warn("failed to retrieve ads")
+		return nil
+	}
+	return ads[rand.Intn(len(ads))]
+}
+
 func renderHTTPError(log logrus.FieldLogger, r *http.Request, w http.ResponseWriter, err error, code int) {
 	log.WithField("error", err).Error("request error")
 	errMsg := fmt.Sprintf("%+v", err)

src/frontend/main.go

@@ -73,6 +73,9 @@ type frontendServer struct {
 
 	shippingSvcAddr string
 	shippingSvcConn *grpc.ClientConn
+
+	adSvcAddr string
+	adSvcConn *grpc.ClientConn
 }
 
 func main() {
@@ -96,6 +99,7 @@ func main() {
 	mustMapEnv(&svc.recommendationSvcAddr, "RECOMMENDATION_SERVICE_ADDR")
 	mustMapEnv(&svc.checkoutSvcAddr, "CHECKOUT_SERVICE_ADDR")
 	mustMapEnv(&svc.shippingSvcAddr, "SHIPPING_SERVICE_ADDR")
+	mustMapEnv(&svc.adSvcAddr, "AD_SERVICE_ADDR")
 
 	mustConnGRPC(ctx, &svc.currencySvcConn, svc.currencySvcAddr)
 	mustConnGRPC(ctx, &svc.productCatalogSvcConn, svc.productCatalogSvcAddr)
@@ -103,6 +107,7 @@ func main() {
 	mustConnGRPC(ctx, &svc.recommendationSvcConn, svc.recommendationSvcAddr)
 	mustConnGRPC(ctx, &svc.shippingSvcConn, svc.shippingSvcAddr)
 	mustConnGRPC(ctx, &svc.checkoutSvcConn, svc.checkoutSvcAddr)
+	mustConnGRPC(ctx, &svc.adSvcConn, svc.adSvcAddr)
 
 	r := mux.NewRouter()
 	r.HandleFunc("/", svc.homeHandler).Methods(http.MethodGet, http.MethodHead)

src/frontend/rpc.go

@@ -114,3 +114,22 @@ func (fe *frontendServer) getRecommendations(ctx context.Context, userID string,
 	}
 	return out, err
 }
+
+func (fe *frontendServer) getAd(ctx context.Context) ([]*pb.Ad, error) {
+	return []*pb.Ad{
+		&pb.Ad{
+			Text:        "Try this OG insta camera from 1960s!",
+			RedirectUrl: "https://en.wikipedia.org/wiki/Instant_camera#Polaroid_cameras",
+		},
+		&pb.Ad{
+			Text:        "Check out the new instagrammy vacation destinations!",
+			RedirectUrl: "https://en.wikipedia.org/wiki/Italy",
+		},
+	}, nil
+
+	// TODO(rghetia): uncomment below and revove the code above
+	// resp, err := pb.NewAdsServiceClient(fe.adSvcConn).GetAds(ctx, &pb.AdsRequest{
+	// 	ContextKeys: nil,
+	// })
+	// return resp.GetAds(), errors.Wrap(err, "failed to get ads")
+}

src/frontend/templates/ad.html

@@ -0,0 +1,10 @@
+{{ define "text_ad" }}
+<div class="container">
+    <div class="alert alert-dark" role="alert">
+        <strong>Advertisement:</strong>
+        <a href="{{.RedirectUrl}}" rel="nofollow" target="_blank" class="alert-link">
+            {{.Text}}
+        </a>
+    </div>
+</div>
+{{ end }}

src/frontend/templates/home.html

@@ -51,6 +51,9 @@
                 </div>
                 {{ end }}
             </div>
+            <div class="row">
+                {{ with $.ad }}{{ template "text_ad" . }}{{ end}}
+            </div>
             </div>
         </div>
     </main>

src/frontend/templates/product.html

@@ -47,9 +47,10 @@
                     {{ template "recommendations" $.recommendations }}
                 {{ end }}
                 
+                {{ with $.ad }}{{ template "text_ad" . }}{{ end}}
             </div>
         </div>
-    </main>
     
+    </main>
     {{ template "footer" . }}
 {{ end }}