How to use Connect method of grpc Package

Best K6 code snippet using grpc.Connect

bidi.go

Source:bidi.go

...15	Addr      string16	TLS       bool // whether or not to use TLS for the underlying channel17	TLSConfig *tls.Config18}19// Connect to the server and establish a yamux channel for bidi grpc.20func Connect(ctx context.Context, dialOpts *DialOpts, grpcServer *grpc.Server) *grpc.ClientConn {21	yDialer := NewYamuxDialer()22	go func() {23		// start connect loop to maintain server connection over the yamux channel24		connectOp := func() error {25			return connect(dialOpts, grpcServer, yDialer)26		}27		for {28			// retry will keep trying to connect to the server forever (or until context is done/canceled)29			// after a successful connection, however, retry will return nil when the connection is closed30			// so wrap in a loop here to reconnect and try again so we can maintain the connection31			retry(ctx, connectOp, 5*time.Second, 0)32			// check if we should give up due to canceled ctx33			select {34			case <-ctx.Done():...

main.go

Source:main.go

...36		return37	}38}39func callServiceOneDirect(url string) error {40	// Connect to server41	grpcConn, err := grpc.Dial(url, grpc.WithInsecure(), grpc.WithBlock())42	if err != nil {43		return errors.Wrap(err, "Can't connect to service #1 by direct port")44	}45	defer grpcConn.Close()46	// Create client47	grpcClient := proto_one.NewServiceClient(grpcConn)48	// Do request for data49	resp, err := grpcClient.GetSomeResponse(context.Background(), &proto_one.NoArguments{})50	if err != nil {51		fmt.Println(err)52		return errors.Wrap(err, "Can't execute procedure on service #1 by direct port")53	}54	if resp == nil {55		return fmt.Errorf("Response is nil from service #1")56	}57	fmt.Println("Response from service #1 is:", resp)58	return nil59}60func callServiceTwoDirect(url string) error {61	// Connect to server62	grpcConn, err := grpc.Dial(url, grpc.WithInsecure(), grpc.WithBlock())63	if err != nil {64		return errors.Wrap(err, "Can't connect to service #2 by direct port")65	}66	defer grpcConn.Close()67	// Create client68	grpcClient := proto_two.NewServiceClient(grpcConn)69	// Do request for data70	resp, err := grpcClient.GetSomeResponse(context.Background(), &proto_two.NoArguments{})71	if err != nil {72		fmt.Println(err)73		return errors.Wrap(err, "Can't execute procedure on service #2 by direct port")74	}75	if resp == nil {76		return fmt.Errorf("Response is nil from service #2")77	}78	fmt.Println("Response from service #2 is:", resp)79	return nil80}81func callServiceOneProxy(url string) error {82	// Connect to server83	grpcConn, err := grpc.Dial(url, grpc.WithInsecure(), grpc.WithBlock())84	if err != nil {85		return errors.Wrap(err, "Can't connect to service #1 by reverse proxy port")86	}87	defer grpcConn.Close()88	// Create client89	grpcClient := proto_one.NewServiceClient(grpcConn)90	// Do request for data91	resp, err := grpcClient.GetSomeResponse(context.Background(), &proto_one.NoArguments{})92	if err != nil {93		fmt.Println(err)94		return errors.Wrap(err, "Can't execute procedure on service #1 by reverse proxy port")95	}96	if resp == nil {97		return fmt.Errorf("Response is nil from service #1 (reverse proxy)")98	}99	fmt.Println("Response from service #1 (reverse proxy) is:", resp)100	return nil101}102func callServiceTwoProxy(url string) error {103	// Connect to server104	grpcConn, err := grpc.Dial(url, grpc.WithInsecure(), grpc.WithBlock())105	if err != nil {106		return errors.Wrap(err, "Can't connect to service #2 by reverse proxy port")107	}108	defer grpcConn.Close()109	// Create client110	grpcClient := proto_two.NewServiceClient(grpcConn)111	// Do request for data112	resp, err := grpcClient.GetSomeResponse(context.Background(), &proto_two.NoArguments{})113	if err != nil {114		fmt.Println(err)115		return errors.Wrap(err, "Can't execute procedure on service #2 by reverse proxy port")116	}117	if resp == nil {...

grpc.go

Source:grpc.go

...6	"time"7	"google.golang.org/grpc"8)9const (10	// numConnectRetries is the number of times we try to connect a gRPC client11	// to the server when ensuring the server has come up before we give up.12	numConnectRetries = 1013	// delayBetweenConnectRetries is how long we wait between each connection14	// attempt when verifying that the server is up.15	delayBetweenConnectRetries = (100 * time.Millisecond)16)17// startGRPC takes care of starting the gRPC server.  Note that this has to happen18// before you call startHTTP if you are using RESTMuxViaGRPC since it depends on19// the gRPC server being up before it can start safely.20func (s *Server) startGRPC() error {21	listener, err := net.Listen("tcp", s.grpcListenAddr)22	if err != nil {23		return err24	}25	grpcServer := s.service.GRPCServer()26	// Set up graceful shutdown27	go func() {28		<-s.ctx.Done()29		grpcServer.GracefulStop()30	}()31	// Start gRPC server32	go func() {33		log.Printf("starting gRPC interface '%s'", s.grpcListenAddr)34		err := grpcServer.Serve(listener)35		if err != nil {36			log.Printf("gRPC interface '%s' down, %v", s.grpcListenAddr, err)37		} else {38			log.Printf("gRPC interface '%s' down", s.grpcListenAddr)39		}40		s.grpcStopped.Done()41	}()42	// Ensure the gRPC server is really up before we return43	connectSuccess := false44	for i := 0; i < numConnectRetries; i++ {45		client, err := grpc.Dial(s.grpcListenAddr, grpc.WithInsecure())46		if err == nil {47			connectSuccess = true48			client.Close()49			break50		}51		log.Printf("waiting for gRPC endpoint '%s' to come up (attempt %d)", s.grpcListenAddr, i+1)52		time.Sleep(delayBetweenConnectRetries)53	}54	if !connectSuccess {55		return fmt.Errorf("failed to connect to gRPC endpoint %s to check for liveness", s.grpcListenAddr)56	}57	s.grpcStarted.Done()58	return nil59}...

Connect

Using AI Code Generation

1conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())2if err != nil {3log.Fatalf("did not connect: %v", err)4}5defer conn.Close()6c := pb.NewGreeterClient(conn)7r, err := c.SayHello(context.Background(), &pb.HelloRequest{Name: "world"})8if err != nil {9log.Fatalf("could not greet: %v", err)10}11log.Printf("Greeting: %s", r.Message)12conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())13if err != nil {14log.Fatalf("did not connect: %v", err)15}16defer conn.Close()17c := pb.NewGreeterClient(conn)18r, err := c.SayHello(context.Background(), &pb.HelloRequest{Name: "world"})19if err != nil {20log.Fatalf("could not greet: %v", err)21}22log.Printf("Greeting: %s", r.Message)

Connect

Using AI Code Generation

1conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())2if err != nil {3log.Fatalf("did not connect: %v", err)4}5defer conn.Close()6c := pb.NewGreeterClient(conn)7r, err := c.SayHello(context.Background(), &pb.HelloRequest{Name: name})8if err != nil {9log.Fatalf("could not greet: %v", err)10}11log.Printf("Greeting: %s", r.Message)12}13import grpc14import helloworld_pb215import helloworld_pb2_grpc16def run():17channel = grpc.insecure_channel('localhost:50051')18stub = helloworld_pb2_grpc.GreeterStub(channel)19response = stub.SayHello(helloworld_pb2.HelloRequest(name='you'))20print("Greeter client received: " + response.message)21run()22var PROTO_PATH = __dirname + '/helloworld.proto';23var grpc = require('grpc');24var hello_proto = grpc.load(PROTO_PATH).helloworld;25function main() {26var client = new hello_proto.Greeter('localhost:50051',27grpc.credentials.createInsecure());28client.sayHello({name: 'you'}, function(err, response) {29console.log('Greeting:', response.message);30});31}32main();33using System;34using Grpc.Core;35using Helloworld;36{37{38public static void Main(string[] args)39{

Connect

Using AI Code Generation

1conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())2if err != nil {3	log.Fatalf("could not connect: %v", err)4}5defer conn.Close()6c := pb.NewGreeterClient(conn)7r, err := c.SayHello(context.Background(), &pb.HelloRequest{Name: name})8if err != nil {9	log.Fatalf("could not greet: %v", err)10}11log.Printf("Greeting: %s", r.Message)12conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())13if err != nil {14	log.Fatalf("could not connect: %v", err)15}16defer conn.Close()17c := pb.NewGreeterClient(conn)18r, err := c.SayHello(context.Background(), &pb.HelloRequest{Name: name})19if err != nil {20	log.Fatalf("could not greet: %v", err)21}22log.Printf("Greeting: %s", r.Message)

Connect

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World")4	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())5	if err != nil {6		log.Fatalf("Could not connect: %v", err)7	}8	defer conn.Close()9}10import (11func main() {12	fmt.Println("Hello World")13	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())14	if err != nil {15		log.Fatalf("Could not connect: %v", err)16	}17	defer conn.Close()18	c := greetpb.NewGreetServiceClient(conn)19	doUnary(c)20}21func doUnary(c greetpb.GreetServiceClient) {22	fmt.Println("Starting to do a Unary RPC...")23	req := &greetpb.GreetRequest{24		Greeting: &greetpb.Greeting{25		},26	}27	res, err := c.Greet(context.Background(), req)28	if err != nil {29		log.Fatalf("error while calling Greet RPC: %v", err)30	}31	log.Printf("Response from Greet: %v", res.Result)32}33import (34func main() {35	fmt.Println("Hello World")36	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())37	if err != nil {38		log.Fatalf("Could not connect: %v", err)39	}40	defer conn.Close()41	c := greetpb.NewGreetServiceClient(conn)42	doServerStreaming(c)43}44func doServerStreaming(c greetpb.GreetServiceClient) {45	fmt.Println("Starting to do a Server Streaming RPC...")46	req := &greetpb.GreetManyTimesRequest{47		Greeting: &greetpb.Greeting{

Connect

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello World")4    conn, err := grpc.Connect()5    serr.Check(err, "Error connecting to gRPC server", serr.FatalError())6    client := greeter.NewClient(conn)7    client.SayHello()8}

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