From: gun <sssgun@gmail.com>
Date: Thu, 2 Dec 2021 01:20:14 +0000 (+0900)
Subject: Update README.md
X-Git-Tag: v0.1.2~1
X-Git-Url: https://go.fuhry.dev/?a=commitdiff_plain;h=caeee4f4b3b7a39636a3c796597ff6cf7a7db45b;p=grpc-quic.git

Update README.md
---

diff --git a/README.md b/README.md
index 37a498a..8cfbe35 100644
--- a/README.md
+++ b/README.md
@@ -20,12 +20,80 @@ import "github.com/sssgun/grpc-quic"
 ```
 
 ## Usage
-* gRPC-Go + QUIC-Go
-  * https://github.com/grpc/grpc-go/tree/master/examples/helloworld
-  * https://github.com/lucas-clemente/quic-go/tree/master/example
 
 ### As a server
-See the example server.
+```go
+func echoGrpcQuicServer(certFile, keyFile string) error {
+	log.Println("starting echo quic server")
+
+	tlsConf, err := generateTLSConfig(certFile, keyFile)
+	if err != nil {
+		log.Printf("QuicServer: failed to generateTLSConfig. %s", err.Error())
+		return err
+	}
+
+	ql, err := quic.ListenAddr(*addr, tlsConf, nil)
+	if err != nil {
+		log.Printf("QuicServer: failed to ListenAddr. %s", err.Error())
+		return err
+	}
+	listener := qnet.Listen(ql)
+
+	s := grpc.NewServer()
+	pb.RegisterGreeterServer(s, &server{})
+	log.Printf("QuicServer: listening at %v", listener.Addr())
+
+	if err := s.Serve(listener); err != nil {
+		log.Printf("QuicServer: failed to serve. %v", err)
+		return err
+	}
+
+	log.Println("stopping echo quic server")
+	return nil
+}
+```
+
 
 ### As a client
-See the example client.
\ No newline at end of file
+```go
+func echoGrpcQuicClient() error {
+	tlsConf := &tls.Config{
+		InsecureSkipVerify: true,
+		NextProtos:         []string{"quic-echo-example"},
+	}
+
+	creds := qnet.NewCredentials(tlsConf)
+
+	dialer := qnet.NewQuicDialer(tlsConf)
+	grpcOpts := []grpc.DialOption{
+		grpc.WithContextDialer(dialer),
+		grpc.WithTransportCredentials(creds),
+	}
+
+	conn, err := grpc.Dial(*addr, grpcOpts...)
+	if err != nil {
+		log.Printf("QuicClient: failed to grpc.Dial. %s", err.Error())
+		return err
+	}
+	defer func(conn *grpc.ClientConn) {
+		err := conn.Close()
+		if err != nil {
+			log.Printf("QuicClient: failed to close - grpc.Dial. %s", err.Error())
+		}
+	}(conn)
+
+	c := pb.NewGreeterClient(conn)
+	name := defaultName
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+
+	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})
+	if err != nil {
+		log.Printf("QuicClient: could not greet. %v", err)
+		return err
+	}
+	log.Printf("QuicClient: Greeting=%s", r.GetMessage())
+
+	return nil
+}
+```