mirror of https://github.com/grpc/grpc-go.git
63 lines
1.7 KiB
Go
63 lines
1.7 KiB
Go
/*
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*
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* Copyright 2018 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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// Binary client is an example client.
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package main
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import (
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"context"
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"flag"
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"fmt"
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"log"
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"time"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/alts"
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ecpb "google.golang.org/grpc/examples/features/proto/echo"
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)
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var addr = flag.String("addr", "localhost:50051", "the address to connect to")
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func callUnaryEcho(client ecpb.EchoClient, message string) {
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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resp, err := client.UnaryEcho(ctx, &ecpb.EchoRequest{Message: message})
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if err != nil {
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log.Fatalf("client.UnaryEcho(_) = _, %v: ", err)
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}
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fmt.Println("UnaryEcho: ", resp.Message)
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}
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func main() {
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flag.Parse()
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// Create alts based credential.
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altsTC := alts.NewClientCreds(alts.DefaultClientOptions())
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// Set up a connection to the server.
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conn, err := grpc.Dial(*addr, grpc.WithTransportCredentials(altsTC), grpc.WithBlock())
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if err != nil {
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log.Fatalf("did not connect: %v", err)
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}
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defer conn.Close()
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// Make a echo client and send an RPC.
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rgc := ecpb.NewEchoClient(conn)
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callUnaryEcho(rgc, "hello world")
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}
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