mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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77543cd80e
* add grpc example * update example guide * decouple trace provider initialization * add source license * update api references
60 lines
1.5 KiB
Go
60 lines
1.5 KiB
Go
// Copyright 2019, OpenTelemetry 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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package main
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import (
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"context"
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"log"
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"net"
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"go.opentelemetry.io/otel/example/grpc/api"
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"go.opentelemetry.io/otel/example/grpc/config"
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"google.golang.org/grpc"
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"go.opentelemetry.io/otel/example/grpc/middleware/tracing"
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)
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const (
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port = ":7777"
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)
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// server is used to implement api.HelloServiceServer
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type server struct {
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api.UnimplementedHelloServiceServer
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}
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// SayHello implements api.HelloServiceServer
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func (s *server) SayHello(ctx context.Context, in *api.HelloRequest) (*api.HelloResponse, error) {
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log.Printf("Received: %v", in.GetGreeting())
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return &api.HelloResponse{Reply: "Hello " + in.Greeting}, nil
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}
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func main() {
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config.Init()
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lis, err := net.Listen("tcp", port)
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if err != nil {
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log.Fatalf("failed to listen: %v", err)
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}
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s := grpc.NewServer(grpc.UnaryInterceptor(tracing.UnaryServerInterceptor))
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api.RegisterHelloServiceServer(s, &server{})
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if err := s.Serve(lis); err != nil {
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log.Fatalf("failed to serve: %v", err)
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}
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}
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