How to use Exports method of grpc Package

Best K6 code snippet using grpc.Exports

server.go

Source:server.go

...289	plugin.Register(&plugin.Registration{290		Type: plugin.ContentPlugin,291		ID:   "content",292		InitFn: func(ic *plugin.InitContext) (interface{}, error) {293			ic.Meta.Exports["root"] = ic.Root294			return local.NewStore(ic.Root)295		},296	})297	plugin.Register(&plugin.Registration{298		Type: plugin.MetadataPlugin,299		ID:   "bolt",300		Requires: []plugin.Type{301			plugin.ContentPlugin,302			plugin.SnapshotPlugin,303		},304		Config: &srvconfig.BoltConfig{305			ContentSharingPolicy: srvconfig.SharingPolicyShared,306		},307		InitFn: func(ic *plugin.InitContext) (interface{}, error) {308			if err := os.MkdirAll(ic.Root, 0711); err != nil {309				return nil, err310			}311			cs, err := ic.Get(plugin.ContentPlugin)312			if err != nil {313				return nil, err314			}315			snapshottersRaw, err := ic.GetByType(plugin.SnapshotPlugin)316			if err != nil {317				return nil, err318			}319			snapshotters := make(map[string]snapshots.Snapshotter)320			for name, sn := range snapshottersRaw {321				sn, err := sn.Instance()322				if err != nil {323					if !plugin.IsSkipPlugin(err) {324						log.G(ic.Context).WithError(err).325							Warnf("could not use snapshotter %v in metadata plugin", name)326					}327					continue328				}329				snapshotters[name] = sn.(snapshots.Snapshotter)330			}331			shared := true332			ic.Meta.Exports["policy"] = srvconfig.SharingPolicyShared333			if cfg, ok := ic.Config.(*srvconfig.BoltConfig); ok {334				if cfg.ContentSharingPolicy != "" {335					if err := cfg.Validate(); err != nil {336						return nil, err337					}338					if cfg.ContentSharingPolicy == srvconfig.SharingPolicyIsolated {339						ic.Meta.Exports["policy"] = srvconfig.SharingPolicyIsolated340						shared = false341					}342					log.L.WithField("policy", cfg.ContentSharingPolicy).Info("metadata content store policy set")343				}344			}345			path := filepath.Join(ic.Root, "meta.db")346			ic.Meta.Exports["path"] = path347			db, err := bolt.Open(path, 0644, nil)348			if err != nil {349				return nil, err350			}351			var dbopts []metadata.DBOpt352			if !shared {353				dbopts = append(dbopts, metadata.WithPolicyIsolated)354			}355			mdb := metadata.NewDB(db, cs.(content.Store), snapshotters, dbopts...)356			if err := mdb.Init(ic.Context); err != nil {357				return nil, err358			}359			return mdb, nil360		},361	})362	clients := &proxyClients{}363	for name, pp := range config.ProxyPlugins {364		var (365			t plugin.Type366			f func(*grpc.ClientConn) interface{}367			address = pp.Address368		)369		switch pp.Type {370		case string(plugin.SnapshotPlugin), "snapshot":371			t = plugin.SnapshotPlugin372			ssname := name373			f = func(conn *grpc.ClientConn) interface{} {374				return ssproxy.NewSnapshotter(ssapi.NewSnapshotsClient(conn), ssname)375			}376		case string(plugin.ContentPlugin), "content":377			t = plugin.ContentPlugin378			f = func(conn *grpc.ClientConn) interface{} {379				return csproxy.NewContentStore(csapi.NewContentClient(conn))380			}381		default:382			log.G(ctx).WithField("type", pp.Type).Warn("unknown proxy plugin type")383		}384		plugin.Register(&plugin.Registration{385			Type: t,386			ID:   name,387			InitFn: func(ic *plugin.InitContext) (interface{}, error) {388				ic.Meta.Exports["address"] = address389				conn, err := clients.getClient(address)390				if err != nil {391					return nil, err392				}393				return f(conn), nil394			},395		})396	}397	filter := srvconfig.V2DisabledFilter398	if config.GetVersion() == 1 {399		filter = srvconfig.V1DisabledFilter400	}401	// return the ordered graph for plugins402	return plugin.Graph(filter(config.DisabledPlugins)), nil...

cmd_server.go

Source:cmd_server.go

...120	}121	sort.Slice(reply.Imports, func(i, j int) bool {122		return reply.Imports[i].Addr < reply.Imports[j].Addr123	})124	// Exports.125	for funcAddr, funcName := range file.Exports {126		fn := &binpb.Func{127			Addr: uint64(funcAddr),128			Name: funcName,129		}130		reply.Exports = append(reply.Exports, fn)131	}132	sort.Slice(reply.Exports, func(i, j int) bool {133		return reply.Exports[i].Addr < reply.Exports[j].Addr134	})135	return reply, nil136}137// archpb converts the given Go machine architecture to protobuf format.138func archpb(arch bin.Arch) binpb.Arch {139	switch arch {140	case bin.ArchX86_32:141		return binpb.Arch_X86_32142	case bin.ArchX86_64:143		return binpb.Arch_X86_64144	case bin.ArchMIPS_32:145		return binpb.Arch_MIPS_32146	case bin.ArchPowerPC_32:147		return binpb.Arch_PowerPC_32...

exporter.go

Source:exporter.go

1package exporter2import (3	"fmt"4	"github.com/chirino/grpc-rpf/internal/command/app"5	"github.com/chirino/grpc-rpf/internal/pkg/exporter"6	"github.com/chirino/grpc-rpf/internal/pkg/utils"7	"github.com/spf13/cobra"8	"io/ioutil"9	"log"10	"os"11	"os/signal"12	"path/filepath"13	"strings"14	"syscall"15)16var (17	exportsDir = ""18	config     = exporter.Config{19		ServerAddress: "localhost:34343",20		Services:      map[string]exporter.ServiceConfig{},21		Log:           log.New(os.Stdout, "", 0),22	}23	Command = &cobra.Command{24		Use:   "exporter",25		Short: "Runs the reverse port forward client to export services to the server.",26		Long: `Runs the reverse port forward client to export services to the server.  27Use this in your private network to export services to a reverse port forward server`,28		PersistentPreRunE: app.BindEnv("GRPC_RPF"),29		RunE:              commandRun,30	}31	exports []string32)33func init() {34	Command.Flags().StringVar(&config.ServerAddress, "server", config.ServerAddress, "server address in address:port format")35	Command.Flags().StringArrayVar(&exports, "export", exports, "service to export in name=address:port format")36	Command.Flags().StringVar(&config.AccessToken, "access-token", config.AccessToken, "access token used to identify the client")37	Command.Flags().StringVar(&exportsDir, "exports-dir", exportsDir, "watch a directory holding export configurations")38	Command.Flags().BoolVar(&config.Insecure, "insecure", false, "connect to the server using an insecure TLS connection.")39	Command.Flags().StringVar(&config.CAFile, "ca-file", "", "certificate authority file")40	Command.Flags().StringVar(&config.CertFile, "crt-file", "", "public certificate file")41	Command.Flags().StringVar(&config.KeyFile, "key-file", "", "private key file")42	app.Command.AddCommand(Command)43}44func commandRun(_ *cobra.Command, _ []string) error {45	if exportsDir == "" && len(exports) == 0 {46		return fmt.Errorf("option --export or --export-dir is required")47	}48	if exportsDir != "" && len(exports) != 0 {49		return fmt.Errorf("option --export or --export-dir are exclusive, use only one")50	}51	for _, s := range exports {52		sp := strings.Split(s, "=")53		if len(sp) != 2 {54			return fmt.Errorf("invalid --export argument: should be in name=host:port format, got: %s", s)55		}56		name := sp[0]57		hostPort := sp[1]58		config.Services[name] = exporter.ServiceConfig{59			Address: hostPort,60		}61	}62	app.HandleErrorWithExitCode(func() error {63		c, err := exporter.New(config)64		if err != nil {65			return err66		}67		err = c.Start()68		if err != nil {69			return err70		}71		defer c.Stop()72		if exportsDir != "" {73			err := loadExporterConfigs(c)74			if err != nil {75				return err76			}77			stopWatching, err := utils.WatchDir(exportsDir, func() {78				config.Log.Println("config change detected")79				err := loadExporterConfigs(c)80				if err != nil {81					config.Log.Println(err)82				}83			})84			if err != nil {85				return err86			}87			defer stopWatching()88		}89		signals := make(chan os.Signal, 1)90		signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM)91		<-signals92		fmt.Println("shutting down")93		return nil94	}, 2)95	return nil96}97func loadExporterConfigs(c *exporter.Client) error {98	files, err := ioutil.ReadDir(exportsDir)99	if err != nil {100		return fmt.Errorf("error loading imports directory: %v", err)101	}102	type ExporterConfig struct {103		Name    string `yaml:"name"`104		Address string `yaml:"address"`105	}106	config.Services = map[string]exporter.ServiceConfig{}107	for _, f := range files {108		value := ExporterConfig{}109		file := filepath.Join(exportsDir, f.Name())110		err := utils.ReadConfigFile(file, &value)111		if err != nil {112			config.Log.Printf("error loading export file '%s': %v", file, err)113			continue114		}115		if value.Name == "" {116			config.Log.Printf("error loading export file '%s': service name not configured", file)117			continue118		}119		if value.Address == "" {120			config.Log.Printf("error loading export file '%s': service address not configured", file)121			continue122		}123		config.Services[value.Name] = exporter.ServiceConfig{124			Address: value.Address,125		}126	}127	c.SetServices(config.Services)128	return nil129}...

Exports

Using AI Code Generation

1import (2func main() {3	creds, err := credentials.NewClientTLSFromFile("certs/server.crt", "")4	if err != nil {5		log.Fatalf("could not load tls cert: %s", err)6	}7	conn, err := grpc.Dial("localhost:50051", grpc.WithTransportCredentials(creds))8	if err != nil {9		log.Fatalf("did not connect: %v", err)10	}11	defer conn.Close()12	c := NewGreeterClient(conn)13	ctx, cancel := context.WithTimeout(context.Background(), time.Second)14	defer cancel()15	r, err := c.SayHello(ctx, &HelloRequest{Name: name})16	if err != nil {17		log.Fatalf("could not greet: %v", err)18	}19	fmt.Println(r.Message)20}21import (22func main() {23	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())24	if err != nil {25		log.Fatalf("did not connect: %v", err)26	}27	defer conn.Close()28	c := NewGreeterClient(conn)29	ctx, cancel := context.WithTimeout(context.Background(), time.Second)30	defer cancel()31	r, err := c.SayHello(ctx, &HelloRequest{Name: name})32	if err != nil {33		log.Fatalf("could not greet: %v", err)34	}35	fmt.Println(r.Message)36}37In this example, we are using the Dial() method to create a connection to the server. The Dial() method takes a couple of parameters, the first one is the address of the server and the second one is the grpc.WithInsecure

Exports

Using AI Code Generation

1import (2func main() {3	creds, err := credentials.NewClientTLSFromFile("certs/ca.crt", "")4	if err != nil {5		log.Fatalf("could not load tls cert: %s", err)6	}7	conn, err := grpc.Dial("localhost:50051", grpc.WithTransportCredentials(creds))8	if err != nil {9		log.Fatalf("did not connect: %s", err)10	}11	defer conn.Close()12	c := pb.NewCalculatorClient(conn)13	r, err := c.Exports(context.Background(), &pb.Request{A: 1, B: 2})14	if err != nil {15		log.Fatalf("could not greet: %s", err)16	}17	log.Printf("Greeting: %s", r.GetResult())18}

Exports

Using AI Code Generation

1import (2func main() {3    lis, err := net.Listen("tcp", "localhost:50051")4    if err != nil {5        log.Fatalf("failed to listen: %v", err)6    }7    s := grpc.NewServer()8    proto.RegisterGreeterServer(s, &server{})9    if err := s.Serve(lis); err != nil {10        log.Fatalf("failed to serve: %v", err)11    }12}13import (14type GreeterServer interface {15    SayHello(context.Context, *HelloRequest) (*HelloReply, error)16}17func RegisterGreeterServer(s *grpc.Server, srv GreeterServer) {18    s.RegisterService(&_Greeter_serviceDesc, srv)19}20var _Greeter_serviceDesc = grpc.ServiceDesc{21    HandlerType: (*GreeterServer)(nil),22    Methods: []grpc.MethodDesc{23        {24        },25    },26    Streams:  []grpc.StreamDesc{},27}28func _Greeter_SayHello_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {29    in := new(HelloRequest)30    if err := dec(in); err != nil {31    }32    if interceptor == nil {33        return srv.(GreeterServer).SayHello(ctx, in)34    }35    info := &grpc.UnaryServerInfo{36    }37    handler := func(ctx context.Context, req interface{}) (interface{}, error) {38        return srv.(GreeterServer).SayHello(ctx, req.(*HelloRequest))39    }40    return interceptor(ctx, in, info, handler)41}42import (

Exports

Using AI Code Generation

1import (2type server struct{}3func main() {4	lis, err := net.Listen("tcp", ":4040")5	if err != nil {6		log.Fatalf("Failed to listen: %v", err)7	}8	s := grpc.NewServer()9	grpc1.RegisterGreetServiceServer(s, &server{})10	reflection.Register(s)11	if err := s.Serve(lis); err != nil {12		log.Fatalf("Failed to serve: %v", err)13	}14}15import (16type GreetRequest struct {17}18func (m *GreetRequest) Reset()                    { *m = GreetRequest{} }19func (m *GreetRequest) String() string            { return proto.CompactTextString(m) }20func (*GreetRequest) ProtoMessage()               {}21func (*GreetRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }22type GreetResponse struct {23}24func (m *GreetResponse) Reset()                    { *m = GreetResponse{} }25func (m *GreetResponse) String() string            { return proto.CompactTextString(m) }26func (*GreetResponse) ProtoMessage()               {}27func (*GreetResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{

Exports

Using AI Code Generation

1import (2const (3type server struct {4}5func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {6	return &pb.HelloReply{Message: "Hello " + in.Name}, nil7}8func main() {9	lis, err := net.Listen("tcp", port)10	if err != nil {11		log.Fatalf("failed to listen: %v", err)12	}13	s := grpc.NewServer()14	pb.RegisterGreeterServer(s, &server{})15	if err := s.Serve(lis); err != nil {16		log.Fatalf("failed to serve: %v", err)17	}18}19import (20const (21func main() {22	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())23	if err != nil {24		log.Fatalf("did not connect: %v", err)25	}26	defer conn.Close()27	c := pb.NewGreeterClient(conn)28	if len(os.Args) > 1 {29	}30	ctx, cancel := context.WithTimeout(context.Background(), time.Second)31	defer cancel()32	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})33	if err != nil {34		log.Fatalf("could not greet: %v", err)35	}36	fmt.Println("Greeting: ", r.Message)37}38import (

Exports

Using AI Code Generation

1import (2func main() {3	conn, err := grpc.Dial(":50051", 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	r, err := c.SayHello(context.Background(), &pb.HelloRequest{Name: name})10	if err != nil {11		log.Fatalf("could not greet: %v", err)12	}13	fmt.Println(r.Message)14}15import (16const (17type server struct{}18func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {19	return &pb.HelloReply{Message: "Hello " + in.Name}, nil20}21func main() {22	lis, err := net.Listen("tcp", port)23	if err != nil {24		log.Fatalf("failed to listen: %v", err)25	}26	s := grpc.NewServer()27	pb.RegisterGreeterServer(s, &server{})28	if err := s.Serve(lis); err != nil {29		log.Fatalf("failed to serve: %v", err)30	}31}32import (33func main() {34	conn, err := grpc.Dial(":50051", grpc.WithInsecure())35	if err != nil {36		log.Fatalf("did not connect: %v", err)37	}38	defer conn.Close()

Exports

Using AI Code Generation

1var grpc = require('./1.js');2var exports = grpc.Exports;3var http = require('http');4var server = http.createServer(function (request, response) {5    response.writeHead(200, {"Content-Type": "text/plain"});6    response.end("Hello World7");8});9server.listen(8080);

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