How to use Invoke method of grpc Package

Best K6 code snippet using grpc.Invoke

backchannel_example_test.go

Source:backchannel_example_test.go

...47			if err != nil {48				return fmt.Errorf("get backchannel: %w", err)49			}50			fmt.Println("Gitaly sending vote to Praefect via backchannel")51			if err := backchannelConn.Invoke(52				stream.Context(), "/Praefect/VoteTransaction",53				&gitalypb.VoteTransactionRequest{}, &gitalypb.VoteTransactionResponse{},54			); err != nil {55				return fmt.Errorf("invoke backchannel: %w", err)56			}57			fmt.Println("Gitaly received vote response via backchannel")58			fmt.Println("Gitaly responding to the transactional mutator")59			return stream.SendMsg(&gitalypb.CreateBranchResponse{})60		}),61	)62	defer srv.Stop()63	// Start the server64	go func() {65		if err := srv.Serve(ln); err != nil {66			fmt.Printf("failed to serve: %v", err)67		}68	}()69	fmt.Printf("Invoke with a multiplexed client:\n\n")70	if err := invokeWithMuxedClient(logger, ln.Addr().String()); err != nil {71		fmt.Printf("failed to invoke with muxed client: %v", err)72		return73	}74	fmt.Printf("\nInvoke with a non-multiplexed client:\n\n")75	if err := invokeWithNormalClient(ln.Addr().String()); err != nil {76		fmt.Printf("failed to invoke with non-muxed client: %v", err)77		return78	}79	// Output:80	// Invoke with a multiplexed client:81	//82	// Gitaly received a transactional mutator83	// Gitaly sending vote to Praefect via backchannel84	// Praefect received vote via backchannel85	// Praefect responding via backchannel86	// Gitaly received vote response via backchannel87	// Gitaly responding to the transactional mutator88	//89	// Invoke with a non-multiplexed client:90	//91	// Gitaly received a transactional mutator92	// Gitaly responding to a non-multiplexed client93}94func invokeWithMuxedClient(logger *logrus.Entry, address string) error {95	// clientHandshaker's ClientHandshake gets called on each established connection. The Server returned by the96	// ServerFactory is started on Praefect's end of the connection, which Gitaly can call.97	clientHandshaker := backchannel.NewClientHandshaker(logger, func() backchannel.Server {98		return grpc.NewServer(grpc.UnknownServiceHandler(func(srv interface{}, stream grpc.ServerStream) error {99			fmt.Println("Praefect received vote via backchannel")100			fmt.Println("Praefect responding via backchannel")101			return stream.SendMsg(&gitalypb.VoteTransactionResponse{})102		}))103	})104	return invokeWithOpts(address, grpc.WithTransportCredentials(clientHandshaker.ClientHandshake(insecure.NewCredentials())))105}106func invokeWithNormalClient(address string) error {107	return invokeWithOpts(address, grpc.WithInsecure())108}109func invokeWithOpts(address string, opts ...grpc.DialOption) error {110	clientConn, err := grpc.Dial(address, opts...)111	if err != nil {112		return fmt.Errorf("dial server: %w", err)113	}114	if err := clientConn.Invoke(context.Background(), "/Gitaly/Mutator", &gitalypb.CreateBranchRequest{}, &gitalypb.CreateBranchResponse{}); err != nil {115		return fmt.Errorf("call server: %w", err)116	}117	if err := clientConn.Close(); err != nil {118		return fmt.Errorf("close clientConn: %w", err)119	}120	return nil121}...

cli_grpc.go

Source:cli_grpc.go

...52}53func (g *GRpcClient) DeployContract(trans *rpc.Transaction) (*rpc.TxReceipt, rpc.StdError) {54	return g.contractGrpc.DeployContractReturnReceipt(trans)55}56func (g *GRpcClient) InvokeContractReturnHash(transaction *rpc.Transaction) (string, rpc.StdError) {57	return g.contractGrpc.InvokeContract(transaction)58}59func (g *GRpcClient) InvokeCrossChainContractReturnHash(transaction *rpc.Transaction, methodName rpc.CrossChainMethod) (string, rpc.StdError) {60	return "", nil61}62func (g *GRpcClient) InvokeContract(transaction *rpc.Transaction) (*rpc.TxReceipt, rpc.StdError) {63	return g.contractGrpc.InvokeContractReturnReceipt(transaction)64}65func (g *GRpcClient) InvokeCrossChainContract(transaction *rpc.Transaction, methodName rpc.CrossChainMethod) (*rpc.TxReceipt, rpc.StdError) {66	return nil, nil67}68func (g *GRpcClient) FileUpload(filePath string, description string, userList []string, nodeIdList []int, pushNodes []int, accountJson string, password string) (string, rpc.StdError) {69	return GrpcConnMgr.grpc.rpc.FileUpload(filePath, description, userList, nodeIdList, pushNodes, accountJson, password)70}71func (g *GRpcClient) SendTxReturnHash(transaction *rpc.Transaction) (string, rpc.StdError) {72	return g.transGrpc.SendTransaction(transaction)73}74func (g *GRpcClient) SendTx(transaction *rpc.Transaction) (*rpc.TxReceipt, rpc.StdError) {75	return g.transGrpc.SendTransactionReturnReceipt(transaction)76}77func (g *GRpcClient) GetTransactionByHash(txHash string) (*rpc.TransactionInfo, rpc.StdError) {78	return GrpcConnMgr.grpc.rpc.GetTransactionByHash(txHash)79}80func (g *GRpcClient) GetTxReceiptByPolling(txHash string, isPrivateTx bool) (*rpc.TxReceipt, rpc.StdError, bool) {81	return GrpcConnMgr.grpc.rpc.GetTxReceiptByPolling(txHash, isPrivateTx)82}83func (g *GRpcClient) GetTxCount() (*rpc.TransactionsCount, rpc.StdError) {84	return GrpcConnMgr.grpc.rpc.GetTxCount()85}86func (g *GRpcClient) GetChainHeight() (string, rpc.StdError) {87	return GrpcConnMgr.grpc.rpc.GetChainHeight()88}89func (g *GRpcClient) CompileContract(code string) (*rpc.CompileResult, rpc.StdError) {90	return GrpcConnMgr.grpc.rpc.CompileContract(code)91}92func (g *GRpcClient) SignAndInvokeCrossChainContract(transaction *rpc.Transaction, methodName rpc.CrossChainMethod, key interface{}) (*rpc.TxReceipt, rpc.StdError) {93	return GrpcConnMgr.grpc.rpc.SignAndInvokeCrossChainContract(transaction, methodName, key)94}95func (g *GRpcClient) Close() {96	if len(GrpcConnMgr.grpcs) > 0 {97		for _, grpc := range GrpcConnMgr.grpcs {98			grpc.gpc.Close()99			grpc.rpc.Close()100		}101		GrpcConnMgr.grpcs = []*GRpc{}102	}103}...

grpcinvoke.go

Source:grpcinvoke.go

...41	show()42	getservicehandler(filename, serivce, method string) *desc.MethodDescriptor43	getmessage(filename, method string) *dynamic.Message44}45type GrpcInvokeIf interface {46	initGrpc(target string, opts ...grpc.DialOption) error //åå§åè¿æ¥47	loadProto(ProtoSourceIf) error48	parseProto() error49	fillData() error50	protoMarshal() ([]byte, error)51	call(filename, service, method string, req map[string]interface{}, rep *map[string]interface{}, ctx context.Context, opts ...grpc.CallOption) error52}53type GrpcInvokeEngine struct {54	l ProtoSourceIf55	defaultInvoke56}57func (me *GrpcInvokeEngine) Call(filename, servicename, methodname string,58	req map[string]interface{}, rep *map[string]interface{}, ctx context.Context, opts ...grpc.CallOption) error {59	if err := me.call(filename, servicename, methodname, req, rep, ctx, opts...);60		err != nil {61		return err62	}63	return nil64}65func (me *GrpcInvokeEngine) SetKeyVal(filename, methodname, key string, value interface{}) {66	me.l.kv(filename, methodname, key, value)67}68func NewGrpcInvoke(loadder ProtoSourceIf, target string, opts ...grpc.DialOption) *GrpcInvokeEngine {69	app := &GrpcInvokeEngine{70		l: loadder,71	}72	if err := app.initGrpc(target, opts...); err != nil {73		return nil74	}75	if err := app.loadProto(app.l); err != nil {76		return nil77	}78	if err := app.parseProto(); err != nil {79		return nil80	}81	if err := app.fillData(); err != nil {82		return nil83	}...

Invoke

Using AI Code Generation

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 := pb.NewGreeterClient(conn)8	if len(os.Args) > 1 {9	}10	ctx, cancel := context.WithTimeout(context.Background(), time.Second)11	defer cancel()12	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})13	if err != nil {14		log.Fatalf("could not greet: %v", err)15	}16	log.Printf("Greeting: %s", r.Message)17}18func main() {19	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())20	if err != nil {21		log.Fatalf("did not connect: %v", err)22	}23	defer conn.Close()24	c := pb.NewGreeterClient(conn)25	if len(os.Args) > 1 {26	}27	ctx, cancel := context.WithTimeout(context.Background(), time.Second)28	defer cancel()29	r, err := c.SayHelloAgain(ctx, &pb.HelloRequest{Name: name})30	if err != nil {31		log.Fatalf("could not greet: %v", err)32	}33	log.Printf("Greeting: %s", r.Message)34}35func main() {36	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())37	if err != nil {38		log.Fatalf("did not connect: %v", err)39	}40	defer conn.Close()41	c := pb.NewGreeterClient(conn)42	if len(os.Args) > 1 {43	}44	ctx, cancel := context.WithTimeout(context.Background(), time.Second)45	defer cancel()46	r, err := c.SayHelloAgain(ctx, &pb.H

Invoke

Using AI Code Generation

1import (2func main() {3	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())4	if err != nil {5		log.Fatalf("did not connect: %v", err)6	}7	defer conn.Close()8	c := NewGreeterClient(conn)9	ctx, cancel := context.WithTimeout(context.Background(), time.Second)10	defer cancel()11	r, err := c.Invoke(ctx, &HelloRequest{Name: name})12	if err != nil {13		log.Fatalf("could not greet: %v", err)14	}15	fmt.Println(r.GetMessage())16}17import (18func main() {19	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())20	if err != nil {21		log.Fatalf("did not connect: %v", err)22	}23	defer conn.Close()24	c := NewGreeterClient(conn)25	ctx, cancel := context.WithTimeout(context.Background(), time.Second)26	defer cancel()27	r, err := c.Invoke(ctx, &HelloRequest{Name: name})28	if err != nil {29		log.Fatalf("could not greet: %v", err)30	}31	fmt.Println(r.GetMessage())32}

Invoke

Using AI Code Generation

1import (2const (3func main() {4	conn, err := grpc.Dial(address, grpc.WithInsecure())5	if err != nil {6		log.Fatalf("did not connect: %v", err)7	}8	defer conn.Close()9	c := pb.NewGreeterClient(conn)10	if len(os.Args) > 1 {11	}12	ctx, cancel := context.WithTimeout(context.Background(), time.Second)13	defer cancel()14	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})15	if err != nil {16		log.Fatalf("could not greet: %v", err)17	}18	fmt.Println(r.Message)19}20import (21const (22func main() {23	conn, err := grpc.Dial(address, grpc.WithInsecure())24	if err != nil {25		log.Fatalf("did not connect: %v", err)26	}27	defer conn.Close()28	c := pb.NewGreeterClient(conn)29	if len(os.Args) > 1 {30	}31	ctx, cancel := context.WithTimeout(context.Background(), time.Second)32	defer cancel()33	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})34	if err != nil {35		log.Fatalf("could not greet: %v", err)36	}37	fmt.Println(r.Message)38}39import (

Invoke

Using AI Code Generation

1import (2const (3func main() {4    creds, err := credentials.NewClientTLSFromFile("certs/server.crt", "localhost")5    if err != nil {6        log.Fatalf("could not load tls cert: %s", err)7    }8    conn, err := grpc.Dial(address, grpc.WithTransportCredentials(creds))9    if err != nil {10        log.Fatalf("did not connect: %v", err)11    }12    defer conn.Close()13    c := pb.NewGreeterClient(conn)14    if len(os.Args) > 1 {15    }16    ctx, cancel := context.WithTimeout(context.Background(), time.Second)17    defer cancel()18    r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})19    if err != nil {20        log.Fatalf("could not greet: %v", err)21    }22    log.Printf("Greeting: %s", r.Message)23}24import (25const (26func main() {27    creds, err := credentials.NewClientTLSFromFile("certs/server.crt", "localhost")28    if err != nil {29        log.Fatalf("could not load tls cert: %s", err)30    }31    conn, err := grpc.Dial(address, grpc.WithTransportCredentials(creds))32    if err != nil {

Invoke

Using AI Code Generation

1import (2const (3func main() {4	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())5	if err != nil {6		log.Fatalf("did not connect: %v", err)7	}8	defer conn.Close()9	c := pb.NewGreeterClient(conn)10	if len(os.Args) > 1 {11	}12	ctx, cancel := context.WithTimeout(context.Background(), time.Second)13	defer cancel()14	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})15	if err != nil {16		log.Fatalf("could not greet: %v", err)17	}18	log.Printf("Greeting: %s", r.Message)19}

Invoke

Using AI Code Generation

1import (2const (3type server struct {4}5func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {6	fmt.Println("Received: ", in.GetName())7	return &pb.HelloReply{Message: "Hello " + in.GetName()}, nil8}9func main() {10	lis, err := net.Listen("tcp", port)11	if err != nil {12		log.Fatalf("failed to listen: %v", err)13	}14	s := grpc.NewServer()15	pb.RegisterGreeterServer(s, &server{})16	if err := s.Serve(lis); err != nil {17		log.Fatalf("failed to serve: %v", err)18	}19}20import (21const (22func main() {23	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())24	if err != nil {25		log.Fatalf("did not connect: %v", err)26	}27	defer conn.Close()28	c := pb.NewGreeterClient(conn)29	if len(os.Args) > 1 {30	}31	ctx, cancel := context.WithTimeout(context.Background(), time.Second)32	defer cancel()33	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})34	if err != nil {35		log.Fatalf("could not greet: %v", err)36	}37	log.Printf("Greeting: %s", r.Message)38}

Invoke

Using AI Code Generation

1func main() {2	flag.Parse()3	defer glog.Flush()4	conn, err := grpc.Dial(*serverAddr, grpc.WithInsecure())5	if err != nil {6		glog.Fatalf("fail to dial: %v", err)7	}8	defer conn.Close()9	client := pb.NewGreeterClient(conn)10	ctx, cancel := context.WithTimeout(context.Background(), time.Second)11	defer cancel()12	if len(os.Args) > 1 {13	}14	req := &pb.HelloRequest{Name: name}15	resp, err := client.SayHello(ctx, req)16	if err != nil {17		glog.Fatalf("could not greet: %v", err)18	}19	glog.Info(resp.Message)20}21func main() {22	flag.Parse()23	defer glog.Flush()24	conn, err := grpc.Dial(*serverAddr, grpc.WithInsecure())25	if err != nil {26		glog.Fatalf("fail to dial: %v", err)27	}28	defer conn.Close()29	client := pb.NewGreeterClient(conn)30	ctx, cancel := context.WithTimeout(context.Background(), time.Second)31	defer cancel()32	if len(os.Args) > 1 {33	}34	req := &pb.HelloRequest{Name: name}35	resp, err := client.SayHello(ctx, req)36	if err != nil {37		glog.Fatalf("could not greet: %v", err)38	}39	glog.Info(resp.Message)40}41func main() {42	flag.Parse()43	defer glog.Flush()44	conn, err := grpc.Dial(*serverAddr, grpc.WithInsecure())45	if err != nil {46		glog.Fatalf("fail to dial: %v", err)47	}48	defer conn.Close()49	client := pb.NewGreeterClient(conn

Invoke

Using AI Code Generation

1import (2const (3func main() {4    conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())5    if err != nil {6        log.Fatalf("did not connect: %v", err)7    }8    defer conn.Close()9    c := pb.NewGreeterClient(conn)10    if len(os.Args) > 1 {11    }12    ctx, cancel := context.WithTimeout(context.Background(), time.Second)13    defer cancel()14    r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})15    if err != nil {16        log.Fatalf("could not greet: %v", err)17    }18    log.Printf("Greeting: %s", r.Message)19}20import (21const (22func main() {23    conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())24    if err != nil {25        log.Fatalf("did not connect: %v", err)26    }27    defer conn.Close()28    c := pb.NewGreeterClient(conn)29    if len(os.Args) > 1 {30    }31    ctx, cancel := context.WithTimeout(context.Background(), time.Second)32    defer cancel()33    r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})34    if err != nil {35        log.Fatalf("could not greet: %v", err

Invoke

Using AI Code Generation

1import (2const (3func main() {4	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())5	if err != nil {6		log.Fatalf("did not connect: %v", err)7	}8	defer conn.Close()9	c := pb.NewGreeterClient(conn)10	ctx, cancel := context.WithTimeout(context.Background(), time.Second)11	defer cancel()12	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})13	if err != nil {14		log.Fatalf("could not greet: %v", err)15	}16	fmt.Println("Greeting: ", r.Message)17}18import (19const (20func main() {21	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())22	if err != nil {23		log.Fatalf("did not connect: %v", err)24	}25	defer conn.Close()26	c := pb.NewGreeterClient(conn)27	ctx, cancel := context.WithTimeout(context.Background(), time.Second)28	defer cancel()29	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})30	if err != nil {31		log.Fatalf("could not greet: %v", err)32	}33	fmt.Println("Greeting: ", r.Message)34}35import (36const (37func main()

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