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/*
*
* Copyright 2022 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Binary server is an example server to illustrate the use of the stats handler.
package main
import (
"context"
"flag"
"fmt"
"log"
"net"
"time"
"google.golang.org/grpc"
echogrpc "google.golang.org/grpc/examples/features/proto/echo"
echopb "google.golang.org/grpc/examples/features/proto/echo"
"google.golang.org/grpc/examples/features/stats_monitoring/statshandler"
)
var port = flag.Int("port", 50051, "the port to serve on")
type server struct {
echogrpc.UnimplementedEchoServer
}
func (s *server) UnaryEcho(ctx context.Context, req *echopb.EchoRequest) (*echopb.EchoResponse, error) {
time.Sleep(2 * time.Second)
return &echopb.EchoResponse{Message: req.Message}, nil
}
func main() {
flag.Parse()
lis, err := net.Listen("tcp", fmt.Sprintf(":%d", *port))
if err != nil {
log.Fatalf("failed to listen on port %d: %v", *port, err)
}
log.Printf("server listening at %v\n", lis.Addr())
s := grpc.NewServer(grpc.StatsHandler(statshandler.New()))
echogrpc.RegisterEchoServer(s, &server{})
if err := s.Serve(lis); err != nil {
log.Fatalf("failed to serve: %v", err)
}
}
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