mirror of https://github.com/linka-cloud/grpc.git
146 lines
3.2 KiB
Go
146 lines
3.2 KiB
Go
package main
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import (
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"context"
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"crypto/tls"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"strings"
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"github.com/sirupsen/logrus"
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"go.linka.cloud/grpc/client"
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"go.linka.cloud/grpc/registry/mdns"
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"go.linka.cloud/grpc/service"
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)
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type GreeterHandler struct {
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UnimplementedGreeterServer
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}
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func hello(name string) string {
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return fmt.Sprintf("Hello %s !", name)
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}
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func (g *GreeterHandler) SayHello(ctx context.Context, req *HelloRequest) (*HelloReply, error) {
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return &HelloReply{Message: hello(req.Name)}, nil
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}
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func (g *GreeterHandler) SayHelloStream(req *HelloStreamRequest, s Greeter_SayHelloStreamServer) error {
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for i := int64(0); i < req.Count; i++ {
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if err := s.Send(&HelloReply{Message: fmt.Sprintf("Hello %s (%d)!", req.Name, i+1)}); err != nil {
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return err
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}
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// time.Sleep(time.Second)
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}
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return nil
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}
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func main() {
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name := "greeter"
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secure := true
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ctx, cancel := context.WithCancel(context.Background())
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done := make(chan struct{})
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ready := make(chan struct{})
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defer cancel()
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var svc service.Service
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var err error
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address := "0.0.0.0:9991"
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svc, err = service.New(
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service.WithContext(ctx),
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service.WithName(name),
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service.WithVersion("v0.0.1"),
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service.WithAddress(address),
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service.WithRegistry(mdns.NewRegistry()),
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service.WithReflection(true),
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service.WithSecure(secure),
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service.WithAfterStart(func() error {
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fmt.Println("Server listening on", svc.Options().Address())
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close(ready)
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return nil
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}),
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service.WithAfterStop(func() error {
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fmt.Println("Stopping server")
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close(done)
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return nil
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}),
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service.WithGateway(RegisterGreeterHandler),
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service.WithGatewayPrefix("/rest"),
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service.WithGRPCWeb(true),
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service.WithGRPCWebPrefix("/grpc"),
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)
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if err != nil {
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panic(err)
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}
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RegisterGreeterServer(svc, &GreeterHandler{})
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go func() {
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if err := svc.Start(); err != nil {
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panic(err)
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}
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}()
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<-ready
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s, err := client.New(
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client.WithName("greeter"),
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client.WithVersion("v0.0.1"),
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client.WithRegistry(mdns.NewRegistry()),
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client.WithSecure(secure),
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)
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if err != nil {
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logrus.Fatal(err)
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}
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g := NewGreeterClient(s)
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defer cancel()
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res, err := g.SayHello(context.Background(), &HelloRequest{Name: "test"})
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if err != nil {
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logrus.Fatal(err)
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}
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logrus.Infof("received message: %s", res.Message)
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stream, err := g.SayHelloStream(context.Background(), &HelloStreamRequest{Name: "test", Count: 10})
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if err != nil {
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logrus.Fatal(err)
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}
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for {
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m, err := stream.Recv()
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if errors.Is(err, io.EOF) {
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break
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}
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if err != nil {
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logrus.Fatal(err)
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}
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logrus.Infof("received stream message: %s", m.Message)
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}
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scheme := "http://"
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if secure {
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scheme = "https://"
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}
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httpc := &http.Client{
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Transport: &http.Transport{
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TLSClientConfig: &tls.Config{
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InsecureSkipVerify: true,
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},
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},
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}
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req := `{"name":"test"}`
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do := func(url, contentType string) {
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resp, err := httpc.Post(url, contentType, strings.NewReader(req))
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if err != nil {
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logrus.Fatal(err)
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}
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defer resp.Body.Close()
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b, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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logrus.Fatal(err)
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}
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logrus.Info(string(b))
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}
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do(scheme+address+"/rest/api/v1/greeter/hello", "application/json")
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do(scheme+address+"/grpc/helloworld.Greeter/SayHello", "application/grpc-web+json")
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cancel()
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<-done
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}
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