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How to use Close method of grpcext Package

Best K6 code snippet using grpcext.Close

client.go

Source:client.go

...44	}45	parser := protoparse.Parser{46		ImportPaths:      importPaths,47		InferImportPaths: false,48		Accessor: protoparse.FileAccessor(func(filename string) (io.ReadCloser, error) {49			absFilePath := initEnv.GetAbsFilePath(filename)50			return initEnv.FileSystems["file"].Open(absFilePath)51		}),52	}53	fds, err := parser.ParseFiles(filenames...)54	if err != nil {55		return nil, err56	}57	fdset := &descriptorpb.FileDescriptorSet{}58	seen := make(map[string]struct{})59	for _, fd := range fds {60		fdset.File = append(fdset.File, walkFileDescriptors(seen, fd)...)61	}62	return c.convertToMethodInfo(fdset)63}64// Connect is a block dial to the gRPC server at the given address (host:port)65func (c *Client) Connect(addr string, params map[string]interface{}) (bool, error) {66	state := c.vu.State()67	if state == nil {68		return false, common.NewInitContextError("connecting to a gRPC server in the init context is not supported")69	}70	p, err := c.parseConnectParams(params)71	if err != nil {72		return false, err73	}74	opts := grpcext.DefaultOptions(c.vu)75	var tcred credentials.TransportCredentials76	if !p.IsPlaintext {77		tlsCfg := state.TLSConfig.Clone()78		tlsCfg.NextProtos = []string{"h2"}79		// TODO(rogchap): Would be good to add support for custom RootCAs (self signed)80		tcred = credentials.NewTLS(tlsCfg)81	} else {82		tcred = insecure.NewCredentials()83	}84	opts = append(opts, grpc.WithTransportCredentials(tcred))85	if ua := state.Options.UserAgent; ua.Valid {86		opts = append(opts, grpc.WithUserAgent(ua.ValueOrZero()))87	}88	ctx, cancel := context.WithTimeout(c.vu.Context(), p.Timeout)89	defer cancel()90	c.addr = addr91	c.conn, err = grpcext.Dial(ctx, addr, opts...)92	if err != nil {93		return false, err94	}95	if !p.UseReflectionProtocol {96		return true, nil97	}98	fdset, err := c.conn.Reflect(ctx)99	if err != nil {100		return false, err101	}102	_, err = c.convertToMethodInfo(fdset)103	if err != nil {104		return false, fmt.Errorf("can't convert method info: %w", err)105	}106	return true, err107}108// Invoke creates and calls a unary RPC by fully qualified method name109func (c *Client) Invoke(110	method string,111	req goja.Value,112	params map[string]interface{},113) (*grpcext.Response, error) {114	state := c.vu.State()115	if state == nil {116		return nil, common.NewInitContextError("invoking RPC methods in the init context is not supported")117	}118	if c.conn == nil {119		return nil, errors.New("no gRPC connection, you must call connect first")120	}121	if method == "" {122		return nil, errors.New("method to invoke cannot be empty")123	}124	if method[0] != '/' {125		method = "/" + method126	}127	methodDesc := c.mds[method]128	if methodDesc == nil {129		return nil, fmt.Errorf("method %q not found in file descriptors", method)130	}131	p, err := c.parseParams(params)132	if err != nil {133		return nil, err134	}135	b, err := req.ToObject(c.vu.Runtime()).MarshalJSON()136	if err != nil {137		return nil, fmt.Errorf("unable to serialise request object: %w", err)138	}139	md := metadata.New(nil)140	for param, strval := range p.Metadata {141		md.Append(param, strval)142	}143	ctx, cancel := context.WithTimeout(c.vu.Context(), p.Timeout)144	defer cancel()145	tags := state.CloneTags()146	for k, v := range p.Tags {147		tags[k] = v148	}149	if state.Options.SystemTags.Has(metrics.TagURL) {150		tags["url"] = fmt.Sprintf("%s%s", c.addr, method)151	}152	parts := strings.Split(method[1:], "/")153	if state.Options.SystemTags.Has(metrics.TagService) {154		tags["service"] = parts[0]155	}156	if state.Options.SystemTags.Has(metrics.TagMethod) {157		tags["method"] = parts[1]158	}159	// Only set the name system tag if the user didn't explicitly set it beforehand160	if _, ok := tags["name"]; !ok && state.Options.SystemTags.Has(metrics.TagName) {161		tags["name"] = method162	}163	reqmsg := grpcext.Request{164		MethodDescriptor: methodDesc,165		Message:          b,166		Tags:             tags,167	}168	return c.conn.Invoke(ctx, method, md, reqmsg)169}170// Close will close the client gRPC connection171func (c *Client) Close() error {172	if c.conn == nil {173		return nil174	}175	err := c.conn.Close()176	c.conn = nil177	return err178}179// MethodInfo holds information on any parsed method descriptors that can be used by the goja VM180type MethodInfo struct {181	Package         string182	Service         string183	FullMethod      string184	grpc.MethodInfo `json:"-" js:"-"`185}186func (c *Client) convertToMethodInfo(fdset *descriptorpb.FileDescriptorSet) ([]MethodInfo, error) {187	files, err := protodesc.NewFiles(fdset)188	if err != nil {189		return nil, err...

chat.go

Source:chat.go

...51	conn, err := grpcext.Dial(ctx, addr, notls)52	if err != nil {53		return nil, fmt.Errorf("dialing failed: %w", err)54	}55	defer conn.Close()56	md, err := mi.methodDescriptor(ctx, conn, method)57	if err != nil {58		return nil, err59	}60	req := grpcext.Request{61		MethodDescriptor: md,62		Tags:             make(map[string]string),63	}64	if payload != nil {65		b, err := payload.ToObject(mi.vu.Runtime()).MarshalJSON()66		if err != nil {67			return nil, err68		}69		req.Message = b...

Using AI Code Generation

1import (2func main() {3	lis, err := net.Listen("tcp", "localhost:7777")4	if err != nil {5		log.Fatalf("failed to listen: %v", err)6	}7	s := grpc.NewServer()8	if err := s.Serve(lis); err != nil {9		log.Fatalf("failed to serve: %v", err)10	}11	s.Close()12}

Using AI Code Generation

1import (2const (3func main() {4    conn, err := grpc.Dial(address, grpc.WithInsecure())5    if err != nil {6        grpclog.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        grpclog.Fatalf("could not greet: %v", err)17    }18    grpclog.Printf("Greeting: %s", r.Message)19    grpcext.Close(conn)20}21import (22const (23func main() {24    conn, err := grpc.Dial(address, grpc.WithInsecure())25    if err != nil {26        grpclog.Fatalf("did not connect: %v", err)27    }28    defer conn.Close()29    c := pb.NewGreeterClient(conn)30    if len(os.Args) > 1 {31    }

Using AI Code Generation

1import (2func main() {3	lis, err := net.Listen("tcp", ":7777")4	if err != nil {5		grpclog.Fatalf("failed to listen: %v", err)6	}7	creds, err := credentials.NewServerTLSFromFile("server.crt", "server.key")8	if err != nil {9		grpclog.Fatalf("Failed to generate credentials %v", err)10	}11	grpcServer := grpc.NewServer(grpc.Creds(creds))12	pb.RegisterPingServer(grpcServer, &server{})13	err = grpcServer.Serve(lis)14	if err != nil {15		grpclog.Fatalf("failed to serve: %s", err)16	}17}18import (

Using AI Code Generation

1import (2func main() {3	conn, err := grpc.Dial("localhost:8080", grpc.WithInsecure())4	if err != nil {5		grpclog.Fatalf("fail to dial: %v", err)6	}7	defer conn.Close()8}9import (10func main() {11	conn, err := grpc.Dial("localhost:8080", grpc.WithInsecure())12	if err != nil {13		grpclog.Fatalf("fail to dial: %v", err)14	}15	defer conn.Close()16}17import (18func main() {19	conn, err := grpc.Dial("localhost:8080", grpc.WithInsecure())20	if err != nil {21		grpclog.Fatalf("fail to dial: %v", err)22	}23	defer conn.Close()24}25import (26func main() {27	conn, err := grpc.Dial("localhost:8080", grpc.WithInsecure())28	if err != nil {29		grpclog.Fatalf("fail to dial: %v", err)30	}31	defer conn.Close()32}33import (34func main() {35	conn, err := grpc.Dial("localhost:8080", grpc.WithInsecure())36	if err != nil {37		grpclog.Fatalf("fail to dial: %v", err)38	}39	defer conn.Close()40}41import (42func main() {43	conn, err := grpc.Dial("localhost:8080", grpc.WithInsecure())

Using AI Code Generation

1import (2func main() {3	grpclog.SetLoggerV2(grpclog.NewLoggerV2(os.Stdout, os.Stdout, os.Stdout))4	lis, err := net.Listen("tcp", ":50051")5	if err != nil {6		grpclog.Fatalf("failed to listen: %v", err)7	}8	s := grpc.NewServer(grpc.KeepaliveParams(keepalive.ServerParameters{9	}))10	pb.RegisterGreeterServer(s, &server{})11	reflection.Register(s)12	grpcext.Close(s)13	if err := s.Serve(lis); err != nil {14		grpclog.Fatalf("failed to serve: %v", err)15	}16}17import (18func main() {19	grpclog.SetLoggerV2(grpclog.NewLoggerV2(os.Stdout, os.Stdout, os.Stdout))20	lis, err := net.Listen("tcp", ":50051")21	if err != nil {22		grpclog.Fatalf("failed to listen: %v", err)23	}24	s := grpc.NewServer(grpc.KeepaliveParams(keepalive.ServerParameters{25	}))26	pb.RegisterGreeterServer(s, &server{})27	reflection.Register(s)28	grpcext.Close(s)29	if err := s.Serve(lis); err != nil {

Using AI Code Generation

1import (2func main() {3	grpcext.Close()4}5import (6func main() {7	grpc.Dial("localhost:8080", grpc.WithInsecure())8}9import (10func main() {11	grpc.DialContext("localhost:8080", grpc.WithInsecure())12}13import (14func main() {15	grpc.Insecure()16}17import (18func main() {19	grpc.Invoke("localhost:8080", grpc.WithInsecure())20}21import (22func main() {23	grpc.NewClientStream("localhost:8080", grpc.WithInsecure())24}25import (26func main() {27	grpc.NewServerStream("localhost:8080", grpc.WithInsecure())28}29import (30func main() {31	grpc.NewStream("localhost:8080", grpc.WithInsecure())32}

Using AI Code Generation

1import (2func main() {3    cert, err := tls.LoadX509KeyPair("client.crt", "client.key")4    if err != nil {5        grpclog.Fatalf("could not load client key pair: %s", err)6    }7    certPool := x509.NewCertPool()8    ca, err := ioutil.ReadFile("ca.crt")9    if err != nil {10        grpclog.Fatalf("could not read ca certificate: %s", err)11    }12    if ok := certPool.AppendCertsFromPEM(ca); !ok {13        grpclog.Fatalf("failed to append ca certs")14    }15    creds := credentials.NewTLS(&tls.Config{16        Certificates: []tls.Certificate{cert},17    })18    conn, err := grpc.Dial("localhost:8443", grpc.WithTransportCredentials(creds))19    if err != nil {20        grpclog.Fatalf("did not connect: %v", err)21    }22    defer conn.Close()23    client := NewGreeterClient(conn)24    if len(os.Args) > 1 {25    }26    ctx, cancel := context.WithTimeout(context.Background(), time.Second)27    defer cancel()28    r, err := client.SayHello(ctx, &HelloRequest{Name: name})29    if err != nil {30        grpclog.Fatalf("could not greet: %v", err)31    }

Using AI Code Generation

1import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"2import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"3import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"4import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"5import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"6import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"7import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"8import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"9import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"10import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"11import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"12import "github.com/grpc-ecosystem/go-grpc-middleware/clientv2/interceptors/grpcext"

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