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library/net/rpc/warden/examples/client/client.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+
+	"go-common/library/ecode"
+	"go-common/library/net/rpc/warden"
+	pb "go-common/library/net/rpc/warden/proto/testproto"
+
+	"github.com/golang/protobuf/ptypes"
+	"github.com/golang/protobuf/ptypes/any"
+	"github.com/pkg/errors"
+)
+
+// usage: ./client -grpc.target=test.service=127.0.0.1:8080
+func main() {
+	flag.Parse()
+	conn, err := warden.NewConn("discovery://d/test.service?t=t&cluster=asdasd")
+	if err != nil {
+		panic(err)
+	}
+	cli := pb.NewGreeterClient(conn)
+	normalCall(cli)
+	errDetailCall(cli)
+}
+
+func normalCall(cli pb.GreeterClient) {
+	reply, err := cli.SayHello(context.Background(), &pb.HelloRequest{Name: "tom", Age: 23})
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println("get reply:", *reply)
+}
+
+func errDetailCall(cli pb.GreeterClient) {
+	_, err := cli.SayHello(context.Background(), &pb.HelloRequest{Name: "err_detail_test", Age: 12})
+	if err != nil {
+		any := errors.Cause(err).(ecode.Codes).Details()[0].(*any.Any)
+		var re pb.HelloReply
+		err := ptypes.UnmarshalAny(any, &re)
+		if err == nil {
+			fmt.Printf("cli.SayHello get error detail!detail:=%v", re)
+		}
+		return
+	}
+}