How to use NewClient method of grpc Package

Best K6 code snippet using grpc.NewClient

controller.go

Source:controller.go

...34	if err := grpcServer.Serve(l); err != nil {35		errChan <- err36	}37}38func NewClient(silenceOutput bool) (pb.AnywhereServerClient, error) {39	h := log.NewHeader("grpc")40	cc, err := grpc.Dial(grpcAddress, grpc.WithInsecure(),41		grpc.WithUnaryInterceptor(func(ctx context.Context, method string, req, reply interface{},42			cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {43			if !silenceOutput {44				log.Infof(h, "calling %v", method)45			}46			err := invoker(ctx, method, req, reply, cc, opts...)47			if !silenceOutput {48				log.Infof(h, "called %v, error: %v", method, err)49			}50			return err51		}))52	if err != nil {53		return nil, err54	}55	return pb.NewAnywhereServerClient(cc), nil56}57func ListAgent() error {58	client, err := NewClient(true)59	if err != nil {60		return err61	}62	res, err := client.ListAgent(context.Background(), &pb.Empty{})63	if err != nil {64		return err65	}66	table := tablewriter.NewWriter(os.Stdout)67	table.SetAutoFormatHeaders(false)68	table.SetHeader([]string{"UserName", "ZoneName", "AgentId", "AgentAddr", "LastAckSend", "LastAckRcv"})69	for _, agent := range res.Agent {70		table.Append([]string{agent.UserName, agent.ZoneName, agent.Id, agent.RemoteAddr, agent.LastAckSend, agent.LastAckRcv})71	}72	table.Render()73	return nil74}75func AddProxyConfig(userName, zoneName string, remotePort int, localAddr string, isWhiteListOn bool, whiteListIps string) error {76	client, err := NewClient(true)77	if err != nil {78		return err79	}80	input := &pb.AddProxyConfigInput{Config: &pb.ProxyConfig{81		Username:      userName,82		ZoneName:      zoneName,83		RemotePort:    int64(remotePort),84		LocalAddr:     localAddr,85		IsWhiteListOn: isWhiteListOn,86		WhiteCidrList: whiteListIps,87	}}88	if _, err = client.AddProxyConfig(context.Background(), input); err != nil {89		return fmt.Errorf("add proxy config error: %v", err)90	}91	return nil92}93func ListProxyConfigs() error {94	client, err := NewClient(true)95	if err != nil {96		return err97	}98	configs, err := client.ListProxyConfigs(context.Background(), &pb.Empty{})99	if err != nil {100		return fmt.Errorf("list proxy config error: %v", err)101	}102	table := tablewriter.NewWriter(os.Stdout)103	table.SetAutoFormatHeaders(false)104	table.SetHeader([]string{"UserName", "ZoneName", "ServerPort", "LocalAddr", "IsWhiteListOn", "IpWhiteList", "ConnectCount", "ConnectRejectCount", "TotalNetFlowsInMB"})105	for _, config := range configs.Config {106		table.Append([]string{107			config.Username, config.ZoneName, strconv.FormatInt(config.RemotePort, 10),108			config.LocalAddr, util.BoolToString(config.IsWhiteListOn), config.WhiteCidrList,109			strconv.FormatInt(config.ProxyConnectCount, 10), strconv.FormatInt(config.ProxyConnectRejectCount, 10),110			strconv.FormatFloat(float64(config.NetworkFlowRemoteToLocalInBytes+config.NetworkFlowLocalToRemoteInBytes)/1024/1024, 'f', 5, 64),111		})112	}113	table.Render()114	return nil115}116func RemoveProxyConfig(configId int64) error {117	client, err := NewClient(true)118	if err != nil {119		return err120	}121	_, err = client.RemoveProxyConfig(context.Background(), &pb.RemoveProxyConfigInput{122		Id: configId,123	})124	return err125}126func LoadProxyConfigFile() error {127	client, err := NewClient(true)128	if err != nil {129		return err130	}131	_, err = client.LoadProxyConfigFile(context.Background(), &pb.Empty{})132	return err133}134func SaveProxyConfigToFile() error {135	client, err := NewClient(true)136	if err != nil {137		return err138	}139	_, err = client.SaveProxyConfigToFile(context.Background(), &pb.Empty{})140	return err141}142func UpdateProxyConfigWhiteList(userName, zoneName, localAddr, whiteCidrs string, whiteListEnable bool) error {143	client, err := NewClient(true)144	if err != nil {145		return err146	}147	_, err = client.UpdateProxyConfigWhiteList(context.Background(), &pb.UpdateProxyConfigWhiteListInput{148		UserName:        userName,149		ZoneName:        zoneName,150		LocalAddr:       localAddr,151		WhiteCidrs:      whiteCidrs,152		WhiteListEnable: whiteListEnable,153	})154	return err155}156func ListConns(zoneName string) error {157	client, err := NewClient(true)158	if err != nil {159		return err160	}161	res, err := client.ListConns(context.Background(), &pb.ListConnsInput{162		ZoneName: zoneName,163	})164	if err != nil {165		return err166	}167	if len(res.Conn) == 0 {168		fmt.Println("no conn exist")169		return nil170	}171	table := tablewriter.NewWriter(os.Stdout)172	table.SetAutoFormatHeaders(false)173	table.SetHeader([]string{"UserName", "ZoneName", "AgentId", "ConnId", "SrcRemoteAddr", "SrcLocalAddr", "DstRemoteAddr", "DstLocalAddr"})174	for _, conn := range res.Conn {175		table.Append([]string{conn.UserName, conn.ZoneName, conn.AgentId, strconv.Itoa(int(conn.ConnId)), conn.SrcRemoteAddr, conn.SrcLocalAddr, conn.DstRemoteAddr, conn.DstLocalAddr})176	}177	table.Render()178	return nil179}180func KillConn(id int64) error {181	client, err := NewClient(true)182	if err != nil {183		return err184	}185	_, err = client.KillConnById(context.Background(), &pb.KillConnByIdInput{186		Id: id,187	})188	return err189}190func FlushConns() error {191	fmt.Println("ATTENTION: are you sure to flush all connections?")192	fmt.Println("y/n ?")193	reader := bufio.NewReader(os.Stdin)194	text, _ := reader.ReadString('\n')195	if strings.TrimSpace(text) != "y" {196		fmt.Println("cancelled")197		return nil198	}199	client, err := NewClient(true)200	if err != nil {201		return err202	}203	_, err = client.KillAllConns(context.Background(), &pb.Empty{})204	return err205}...

client.go

Source:client.go

...6	"google.golang.org/grpc/balancer/roundrobin"7	"google.golang.org/grpc/credentials"8	"google.golang.org/grpc/resolver"9)10// NewClient grpc.Dail()11func NewClient() *grpc.ClientConn {12	// server config13	serverConfig := balancer.GetServerConfig()14	return newClient(serverConfig.ServerName)15}16// NewClientWithServerName grpc.Dail()17func NewClientWithServerName(serverName string) *grpc.ClientConn {18	return newClient(serverName)19}20// newClient grpc.Dail()21func newClient(serverName string) *grpc.ClientConn {22	// resolver23	r := balancer.NewResolver()24	resolver.Register(r)25	// options26	var opts []grpc.DialOption27	// ssl28	if config.SSLEnable {29		cred, err := credentials.NewClientTLSFromFile(config.SSLCertFile, config.SSLServerName)30		if err != nil {31			logrus.Panicf("NewClient credentials.NewClientTLSFromFile error : %v", err)32		}33		opts = append(opts, grpc.WithTransportCredentials(cred))34	} else {35		opts = append(opts, grpc.WithInsecure())36	}37	// balancer name38	opts = append(opts, grpc.WithBalancerName(roundrobin.Name))39	// server address40	serverAddr := r.Scheme() + "://ikaiguang/" + serverName41	logrus.Printf("dial : %s", serverAddr)42	// client43	conn, err := grpc.Dial(serverAddr, opts...)44	if err != nil {45		logrus.Panicf("NewClient grpc.Dial error : %v", err)46	}47	//defer conn.Close()48	return conn49}...

NewClient

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)7if len(os.Args) > 1 {8}9ctx, cancel := context.WithTimeout(context.Background(), time.Second)10defer cancel()11r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})12if err != nil {13log.Fatalf("could not greet: %v", err)14}15log.Printf("Greeting: %s", r.Message)16}17conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())18if err != nil {19log.Fatalf("did not connect: %v", err)20}21defer conn.Close()22c := pb.NewGreeterClient(conn)23if len(os.Args) > 1 {24}25ctx, cancel := context.WithTimeout(context.Background(), time.Second)26defer cancel()27r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})28if err != nil {29log.Fatalf("could not greet: %v", err)30}31log.Printf("Greeting: %s", r.Message)32}

NewClient

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)7if len(os.Args) > 1 {8}9ctx, cancel := context.WithTimeout(context.Background(), time.Second)10defer cancel()11r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})12if err != nil {13log.Fatalf("could not greet: %v", err)14}15log.Printf("Greeting: %s", r.Message)16}

NewClient

Using AI Code Generation

1import (2func main() {3	opts = append(opts, grpc.WithInsecure())4	opts = append(opts, grpc.WithBlock())5	opts = append(opts, grpc.WithTimeout(time.Second))6	opts = append(opts, grpc.WithBlock())7	opts = append(opts, grpc.WithUserAgent("test"))8	ctx, cancel := context.WithTimeout(context.Background(), time.Second)9	defer cancel()10	conn, err := grpc.DialContext(ctx, "localhost:8080", opts...)11	if err != nil {12		log.Fatalf("fail to dial: %v", err)13	}14	defer conn.Close()15	fmt.Println("success")16}17import (18func main() {19	opts = append(opts, grpc.WithInsecure())20	opts = append(opts, grpc.WithBlock())21	opts = append(opts, grpc.WithTimeout(time.Second))22	opts = append(opts, grpc.WithBlock())23	opts = append(opts, grpc.WithUserAgent("test"))24	conn, err := grpc.Dial("localhost:8080", opts...)25	if err != nil {26		log.Fatalf("fail to dial: %v", err)27	}28	defer conn.Close()29	fmt.Println("success")30}31import (32func main() {33	opts = append(opts, grpc.WithInsecure())34	opts = append(opts, grpc.WithBlock())35	opts = append(opts, grpc.WithTimeout(time.Second))36	opts = append(opts, grpc.WithBlock())37	opts = append(opts, grpc.WithUserAgent("test"))38	ctx, cancel := context.WithTimeout(context.Background(), time.Second)39	defer cancel()40	conn, err := grpc.DialContext(ctx, "localhost:8080", opts...)41	if err != nil {42		log.Fatalf("fail to dial: %v", err)43	}44	defer conn.Close()45	fmt.Println("success")46}47import (

NewClient

Using AI Code Generation

1conn, err := grpc.NewClient(ctx, grpc.WithInsecure())2if err != nil {3    log.Fatalf("did not connect: %v", err)4}5defer conn.Close()6c := pb.NewGreeterClient(conn)7r, err := c.SayHello(ctx, &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.NewClient(ctx, grpc.WithInsecure())13if err != nil {14    log.Fatalf("did not connect: %v", err)15}16defer conn.Close()17c := pb.NewGreeterClient(conn)18r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})19if err != nil {20    log.Fatalf("could not greet: %v", err)21}22log.Printf("Greeting: %s", r.Message)23conn, err := grpc.NewClient(ctx, grpc.WithInsecure())24if err != nil {25    log.Fatalf("did not connect: %v", err)26}27defer conn.Close()28c := pb.NewGreeterClient(conn)29r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})30if err != nil {31    log.Fatalf("could not greet: %v", err)32}33log.Printf("Greeting: %s", r.Message)34conn, err := grpc.NewClient(ctx, grpc.WithInsecure())35if err != nil {36    log.Fatalf("did not connect: %v", err)37}38defer conn.Close()39c := pb.NewGreeterClient(conn)

NewClient

Using AI Code Generation

1import (2func main() {3	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure(), grpc.WithBlock())4	if err != nil {5		log.Fatalf("did not connect: %v", err)6	}7	defer conn.Close()8	c := pb.NewGreeterClient(conn)9	ctx, cancel := context.WithTimeout(context.Background(), time.Second)10	defer cancel()11	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})12	if err != nil {13		log.Fatalf("could not greet: %v", err)14	}15	fmt.Println("Greeting: ", r.Message)16}17import (18func main() {19	lis, err := net.Listen("tcp", fmt.Sprintf(":%d", 50051))20	if err != nil {21		log.Fatalf("failed to listen: %v", err)22	}23	s := grpc.NewServer()24	pb.RegisterGreeterServer(s, &server{})25	if err := s.Serve(lis); err != nil {26		log.Fatalf("failed to serve: %v", err)27	}28}29import (30func main() {31	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())32	if err != nil {33		log.Fatalf("did not connect: %v", err)34	}35	defer conn.Close()36}37import (38func main() {39	lis, err := net.Listen("tcp", fmt.Sprintf(":%d", 50051))40	if err != nil {41		log.Fatalf("failed to listen: %v", err)42	}43	s := grpc.NewServer()

NewClient

Using AI Code Generation

1import (2const (3type server struct{}4func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {5    return &pb.HelloReply{Message: "Hello " + in.Name}, nil6}7func main() {8    lis, err := net.Listen("tcp", port)9    if err != nil {10        log.Fatalf("failed to listen: %v", err)11    }12    s := grpc.NewServer()13    pb.RegisterGreeterServer(s, &server{})14    reflection.Register(s)15    if err := s.Serve(lis); err != nil {16        log.Fatalf("failed to serve: %v", err)17    }18}19import (20type HelloRequest struct {21}22func (m *HelloRequest) Reset()                    { *m = HelloRequest{} }23func (m *HelloRequest) String() string            { return proto.CompactTextString(m) }24func (*HelloRequest) ProtoMessage()               {}25func (*HelloRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }26type HelloReply struct {27}28func (m *HelloReply) Reset()

NewClient

Using AI Code Generation

1import (2func main() {3	conn, err := grpc.Dial("localhost:9000", grpc.WithInsecure())4	if err != nil {5		log.Fatalf("did not connect: %v", err)6	}7	defer conn.Close()8	c := pb.NewGreeterClient(conn)9	ctx, cancel := context.WithTimeout(context.Background(), time.Second)10	defer cancel()11	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})12	if err != nil {13		log.Fatalf("could not greet: %v", err)14	}15	fmt.Println("Greeting: ", r.Message)16}

NewClient

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	log.Printf("Greeting: %s", r.Message)19}20import (21const (22type server struct {23}24func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {25	log.Printf("Received: %v", in.GetName())26	return &pb.HelloReply{Message: "Hello " + in.GetName()}, nil27}28func main() {29	lis, err := net.Listen("tcp", port)30	if err != nil {31		log.Fatalf("failed to listen: %v", err)32	}33	s := grpc.NewServer()34	pb.RegisterGreeterServer(s, &server{})35	if err := s.Serve(lis); err != nil {36		log.Fatalf("failed to serve: %v", err)37	}38}39syntax = "proto3";40package proto;

NewClient

Using AI Code Generation

1import (2type server struct {3}4func main() {5    lis, err := net.Listen("tcp", ":50051")6    if err != nil {7        log.Fatalf("failed to listen: %v", err)8    }9    s := grpc.NewServer()10    pb.RegisterAddServiceServer(s, &server{})11    if err := s.Serve(lis); err != nil {12        log.Fatalf("failed to serve: %v", err)13    }14}15func (s *server) Add(ctx context.Context, in *pb.Request) (*pb.Response, error) {16    fmt.Printf("Received: %v17", in.GetA())18    return &pb.Response{Sum: in.GetA() + in.GetB()}, nil19}20import (21func main() {22    conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())23    if err != nil {24        log.Fatalf("did not connect: %v", err)25    }26    defer conn.Close()27    c := pb.NewAddServiceClient(conn)28    r, err := c.Add(context.Background(), &pb.Request{A: 3, B: 4})29    if err != nil {30        log.Fatalf("could not greet: %v", err)31    }32    log.Printf("Greeting: %s", r.GetSum())33}

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