69 lines
1.7 KiB
Go
69 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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"log"
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"os"
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"time"
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epb "google.golang.org/genproto/googleapis/rpc/errdetails"
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"google.golang.org/grpc"
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pb "google.golang.org/grpc/examples/helloworld/helloworld"
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"google.golang.org/grpc/status"
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)
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var addr = flag.String("addr", "localhost:50052", "the address to connect to")
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func main() {
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flag.Parse()
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// Set up a connection to the server.
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conn, err := grpc.Dial(*addr, grpc.WithInsecure())
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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 func() {
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if e := conn.Close(); e != nil {
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log.Printf("failed to close connection: %s", e)
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}
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}()
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c := pb.NewGreeterClient(conn)
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ctx, cancel := context.WithTimeout(context.Background(), time.Second)
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defer cancel()
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r, err := c.SayHello(ctx, &pb.HelloRequest{Name: "world"})
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if err != nil {
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s := status.Convert(err)
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for _, d := range s.Details() {
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switch info := d.(type) {
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case *epb.QuotaFailure:
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log.Printf("Quota failure: %s", info)
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default:
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log.Printf("Unexpected type: %s", info)
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}
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}
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os.Exit(1)
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}
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log.Printf("Greeting: %s", r.Message)
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}
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