remove transport draft, add grpc web and gateway support

example/example.go

@@ -2,10 +2,13 @@ package main
 
 import (
 	"context"
+	"crypto/tls"
 	"errors"
 	"fmt"
 	"io"
-	"time"
+	"io/ioutil"
+	"net/http"
+	"strings"
 
 	"github.com/sirupsen/logrus"
 
@@ -14,7 +17,7 @@ import (
 	"go.linka.cloud/grpc/service"
 )
 
-type GreeterHandler struct{
+type GreeterHandler struct {
 	UnimplementedGreeterServer
 }
 
@@ -31,27 +34,29 @@ func (g *GreeterHandler) SayHelloStream(req *HelloStreamRequest, s Greeter_SayHe
 		if err := s.Send(&HelloReply{Message: fmt.Sprintf("Hello %s (%d)!", req.Name, i+1)}); err != nil {
 			return err
 		}
-		time.Sleep(time.Second)
+		// time.Sleep(time.Second)
 	}
 	return nil
 }
 
 func main() {
 	name := "greeter"
+	secure := true
 	ctx, cancel := context.WithCancel(context.Background())
 	done := make(chan struct{})
 	ready := make(chan struct{})
 	defer cancel()
 	var svc service.Service
 	var err error
+	address := "0.0.0.0:9991"
 	svc, err = service.New(
 		service.WithContext(ctx),
 		service.WithName(name),
 		service.WithVersion("v0.0.1"),
-		service.WithAddress("0.0.0.0:9991"),
+		service.WithAddress(address),
 		service.WithRegistry(mdns.NewRegistry()),
 		service.WithReflection(true),
-		service.WithSecure(true),
+		service.WithSecure(secure),
 		service.WithAfterStart(func() error {
 			fmt.Println("Server listening on", svc.Options().Address())
 			close(ready)
@@ -62,6 +67,10 @@ func main() {
 			close(done)
 			return nil
 		}),
+		service.WithGateway(RegisterGreeterHandler),
+		service.WithGatewayPrefix("/rest"),
+		service.WithGRPCWeb(true),
+		service.WithGRPCWebPrefix("/grpc"),
 	)
 	if err != nil {
 		panic(err)
@@ -77,7 +86,7 @@ func main() {
 		client.WithName("greeter"),
 		client.WithVersion("v0.0.1"),
 		client.WithRegistry(mdns.NewRegistry()),
-		client.WithSecure(true),
+		client.WithSecure(secure),
 	)
 	if err != nil {
 		logrus.Fatal(err)
@@ -91,7 +100,7 @@ func main() {
 	logrus.Infof("received message: %s", res.Message)
 	stream, err := g.SayHelloStream(context.Background(), &HelloStreamRequest{Name: "test", Count: 10})
 	if err != nil {
-	    logrus.Fatal(err)
+		logrus.Fatal(err)
 	}
 	for {
 		m, err := stream.Recv()
@@ -99,10 +108,38 @@ func main() {
 			break
 		}
 		if err != nil {
-		    logrus.Fatal(err)
+			logrus.Fatal(err)
 		}
 		logrus.Infof("received stream message: %s", m.Message)
 	}
+	scheme := "http://"
+	if secure {
+		scheme = "https://"
+	}
+	httpc := &http.Client{
+		Transport: &http.Transport{
+			TLSClientConfig: &tls.Config{
+				InsecureSkipVerify: true,
+			},
+		},
+	}
+	req := `{"name":"test"}`
+
+	do := func(url, contentType string) {
+		resp, err := httpc.Post(url, contentType, strings.NewReader(req))
+		if err != nil {
+			logrus.Fatal(err)
+		}
+		defer resp.Body.Close()
+		b, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			logrus.Fatal(err)
+		}
+		logrus.Info(string(b))
+	}
+	do(scheme+address+"/rest/api/v1/greeter/hello",  "application/json")
+	do(scheme+address+"/grpc/helloworld.Greeter/SayHello", "application/grpc-web+json")
 	cancel()
 	<-done
 }
+