How to use OnResolveMethod method of grpc Package

Best Venom code snippet using grpc.OnResolveMethod

invoke.go

Source: invoke.go Github

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...18/​/​ InvocationEventHandler is a bag of callbacks for handling events that occur in the course19/​/​ of invoking an RPC. The handler also provides request data that is sent. The callbacks are20/​/​ generally called in the order they are listed below.21type InvocationEventHandler interface {22 /​/​ OnResolveMethod is called with a descriptor of the method that is being invoked.23 OnResolveMethod(*desc.MethodDescriptor)24 /​/​ OnSendHeaders is called with the request metadata that is being sent.25 OnSendHeaders(metadata.MD)26 /​/​ OnReceiveHeaders is called when response headers have been received.27 OnReceiveHeaders(metadata.MD)28 /​/​ OnReceiveResponse is called for each response message received.29 OnReceiveResponse(proto.Message) (string, error)30 /​/​ OnReceiveTrailers is called when response trailers and final RPC status have been received.31 OnReceiveTrailers(*status.Status, metadata.MD)32}33/​/​ RequestSupplier is a function that is called to populate messages for a gRPC operation. The34/​/​ function should populate the given message or return a non-nil error. If the supplier has no35/​/​ more messages, it should return io.EOF. When it returns io.EOF, it should not in any way36/​/​ modify the given message argument.37type RequestSupplier func(proto.Message) error38/​/​ InvokeRPC uses the given gRPC channel to invoke the given method. The given descriptor source39/​/​ is used to determine the type of method and the type of request and response message. The given40/​/​ headers are sent as request metadata. Methods on the given event handler are called as the41/​/​ invocation proceeds.42/​/​43/​/​ The given requestData function supplies the actual data to send. It should return io.EOF when44/​/​ there is no more request data. If the method being invoked is a unary or server-streaming RPC45/​/​ (e.g. exactly one request message) and there is no request data (e.g. the first invocation of46/​/​ the function returns io.EOF), then an empty request message is sent.47/​/​48/​/​ If the requestData function and the given event handler coordinate or share any state, they should49/​/​ be thread-safe. This is because the requestData function may be called from a different goroutine50/​/​ than the one invoking event callbacks. (This only happens for bi-directional streaming RPCs, where51/​/​ one goroutine sends request messages and another consumes the response messages).52func InvokeRPC(ctx context.Context, source DescriptorSource, ch grpcdynamic.Channel, methodName string,53 headers []string, handler InvocationEventHandler, requestData RequestSupplier) (string, error) {54 md := MetadataFromHeaders(headers)55 svc, mth := parseSymbol(methodName)56 if svc == "" || mth == "" {57 return "", fmt.Errorf("given method name %q is not in expected format: 'service/​method' or 'service.method'", methodName)58 }59 dsc, err := source.FindSymbol(svc)60 if err != nil {61 if isNotFoundError(err) {62 return "", fmt.Errorf("target server does not expose service %q", svc)63 }64 return "", fmt.Errorf("failed to query for service descriptor %q: %v", svc, err)65 }66 sd, ok := dsc.(*desc.ServiceDescriptor)67 if !ok {68 return "", fmt.Errorf("target server does not expose service %q", svc)69 }70 mtd := sd.FindMethodByName(mth)71 if mtd == nil {72 return "", fmt.Errorf("service %q does not include a method named %q", svc, mth)73 }74 /​/​handler.OnResolveMethod(mtd)75 /​/​ we also download any applicable extensions so we can provide full support for parsing user-provided data76 var ext dynamic.ExtensionRegistry77 alreadyFetched := map[string]bool{}78 if err = fetchAllExtensions(source, &ext, mtd.GetInputType(), alreadyFetched); err != nil {79 return "", fmt.Errorf("error resolving server extensions for message %s: %v", mtd.GetInputType().GetFullyQualifiedName(), err)80 }81 if err = fetchAllExtensions(source, &ext, mtd.GetOutputType(), alreadyFetched); err != nil {82 return "", fmt.Errorf("error resolving server extensions for message %s: %v", mtd.GetOutputType().GetFullyQualifiedName(), err)83 }84 msgFactory := dynamic.NewMessageFactoryWithExtensionRegistry(&ext)85 req := msgFactory.NewMessage(mtd.GetInputType())86 /​/​handler.OnSendHeaders(md)87 ctx = metadata.NewOutgoingContext(ctx, md)88 stub := grpcdynamic.NewStubWithMessageFactory(ch, msgFactory)...

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handler.go

Source: handler.go Github

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...70 default:71 return http.StatusInternalServerError72 }73}74/​/​ OnResolveMethod is called with a descriptor of the method that is being invoked.75func (h *grpcHandler) OnResolveMethod(*desc.MethodDescriptor) {76}77/​/​ OnSendHeaders is called with the request metadata that is being sent.78func (h *grpcHandler) OnSendHeaders(metadata.MD) {79}80/​/​ OnReceiveHeaders is called when response headers have been received.81func (h *grpcHandler) OnReceiveHeaders(md metadata.MD) {82}83func (h *grpcHandler) OnReceiveResponse(resp proto.Message) {84 h.ml.Lock()85 defer h.ml.Unlock()86 h.msgs = append(h.msgs, resp)87}88func (h *grpcHandler) OnReceiveTrailers(s *status.Status, meta metadata.MD) {89 h.code = s.Code()...

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eventhandler.go

Source: eventhandler.go Github

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...21 AnyResolver: resolver,22 },23 }24}25func (h *EventHandler) OnResolveMethod(_ *desc.MethodDescriptor) {26}27func (h *EventHandler) OnSendHeaders(_ metadata.MD) {28}29func (h *EventHandler) OnReceiveHeaders(_ metadata.MD) {30}31func (h *EventHandler) OnReceiveResponse(message proto.Message) {32 if err := h.marshaler.Marshal(h.writer, message); err != nil {33 logx.Error(err)34 }35}36func (h *EventHandler) OnReceiveTrailers(status *status.Status, _ metadata.MD) {37 h.Status = status38}...

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OnResolveMethod

Using AI Code Generation

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1import (2type server struct{}3func (s *server) OnResolveMethod(ctx context.Context, req *grpc.ResolveMethodRequest) (*grpc.ResolveMethodResponse, error) {4 fmt.Println("OnResolveMethod called")5 return &grpc.ResolveMethodResponse{6 }, nil7}8func main() {9 lis, err := net.Listen("tcp", ":9000")10 if err != nil {11 log.Fatalf("failed to listen: %v", err)12 }13 s := grpc.NewServer(14 grpc.CustomCodec(&codec{}),15 grpc.UnknownServiceHandler(func(srv interface{}, stream grpc.ServerStream) error {16 fmt.Println("UnknownServiceHandler called")17 }),18 grpc.RegisterResolveMethodServiceServer(s, &server{})19 reflection.Register(s)20 if err := s.Serve(lis); err != nil {21 log.Fatalf("failed to serve: %v", err)22 }23}24import (25func main() {26 resolver.Register(r)27 if err != nil {28 log.Fatalf("did not connect: %v", err)29 }30 defer conn.Close()31 c := grpc.NewClientConn(conn, grpc.WithInsecure())32 ctx := context.Background()33 md := metadata.Pairs("content-type", "application/​grpc+proto")34 ctx = metadata.NewOutgoingContext(ctx, md)35 var resp interface{}36 err = c.Invoke(ctx, "/​grpc.reflection.v1alpha.ServerReflection/​ServerReflectionInfo", nil, &resp)37 if err != nil {38 log.Fatalf("Invoke failed: %v", err)39 }40 fmt.Println(resp

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OnResolveMethod

Using AI Code Generation

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1func main() {2 conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())3 if err != nil {4 log.Fatalf("did not connect: %v", err)5 }6 defer conn.Close()7 c := customer.NewCustomerClient(conn)8 response, err := c.OnResolveMethod(context.Background(), &customer.CustomerRequest{Name: name})9 if err != nil {10 log.Fatalf("error while calling OnResolveMethod RPC: %v", err)11 }12 log.Printf("Response from OnResolveMethod: %v", response.Message)13}14func main() {15 conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())16 if err != nil {17 log.Fatalf("did not connect: %v", err)18 }19 defer conn.Close()20 c := customer.NewCustomerClient(conn)21 response, err := c.OnResolveMethod(context.Background(), &customer.CustomerRequest{Name: name})22 if err != nil {23 log.Fatalf("error while calling OnResolveMethod RPC: %v", err)24 }25 log.Printf("Response from OnResolveMethod: %v", response.Message)26}27func main() {28 conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())29 if err != nil {30 log.Fatalf("did not connect: %v", err)31 }32 defer conn.Close()33 c := customer.NewCustomerClient(conn)34 response, err := c.OnResolveMethod(context.Background(), &customer.CustomerRequest{Name: name})35 if err != nil {36 log.Fatalf("error while calling OnResolveMethod RPC: %v", err)37 }38 log.Printf("Response from OnResolveMethod: %v", response.Message)39}

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OnResolveMethod

Using AI Code Generation

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1func (s *server) OnResolveMethod(ctx context.Context, method string) (context.Context, *grpc.MethodDesc, error) {2 log.Printf("OnResolveMethod %v", method)3 return ctx, &grpc.MethodDesc{4 Handler: func(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {5 var req struct{}6 if err := dec(&req); err != nil {7 }8 log.Println("OnResolveMethod - Handler")9 },10 }, nil11}12func (s *server) OnResolveStream(ctx context.Context, method string) (context.Context, *grpc.StreamDesc, error) {13 log.Printf("OnResolveStream %v", method)14 return ctx, &grpc.StreamDesc{15 Handler: func(srv interface{}, stream grpc.ServerStream) error { return nil },16 }, nil17}18func (s *server) OnServerConnStart(ctx context.Context, conn *grpc.ClientConn) context.Context {19 log.Printf("OnServerConnStart %v", conn)20}21func (s *server) OnServerConnClose(ctx context.Context, conn *grpc.ClientConn, err error) {22 log.Printf("OnServerConnClose %v", conn)23}24func (s *server) OnServerStreamClose(ctx context.Context, desc *grpc.StreamDesc, err error) {25 log.Printf("OnServerStreamClose %v", desc)26}27func (s *server) OnServerMessage(ctx context.Context, m interface{}, err error) context.Context {28 log.Printf("OnServerMessage %v", m)29}

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OnResolveMethod

Using AI Code Generation

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1import (2type server struct {3}4func main() {5 lis, err := net.Listen("tcp", ":8080")6 if err != nil {7 log.Fatalf("failed to listen: %v", err)8 }9 s := grpc.NewServer()10 pb.RegisterxxxxxxServer(s, &server{})11 if err := s.Serve(lis); err != nil {12 log.Fatalf("failed to serve: %v", err)13 }14}15import (16type server struct {17}18func main() {19 lis, err := net.Listen("tcp", ":8080")20 if err != nil {21 log.Fatalf("failed to listen: %v", err)22 }23 s := grpc.NewServer()24 pb.RegisterxxxxxxServer(s, &server{})25 if err := s.Serve(lis); err != nil {26 log.Fatalf("failed to serve: %v", err)27 }28}29import (30type server struct {31}32func main() {33 lis, err := net.Listen("tcp", ":8080")34 if err != nil {35 log.Fatalf("failed to listen: %v", err)36 }37 s := grpc.NewServer()38 pb.RegisterxxxxxxServer(s, &server{})39 if err := s.Serve(lis); err != nil {40 log.Fatalf("failed to serve: %v", err)41 }42}43import (

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