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example_test.go
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example_test.go
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// Unless explicitly stated otherwise all files in this repository are licensed
// under the Apache License Version 2.0.
// This product includes software developed at Datadog (https://www.datadoghq.com/).
// Copyright 2016 Datadog, Inc.
package grpc_test
import (
"log"
"net"
grpctrace "gopkg.in/DataDog/dd-trace-go.v1/contrib/google.golang.org/grpc"
"google.golang.org/grpc"
)
func Example_client() {
// Create the client interceptor using the grpc trace package.
si := grpctrace.StreamClientInterceptor(grpctrace.WithServiceName("my-grpc-client"))
ui := grpctrace.UnaryClientInterceptor(grpctrace.WithServiceName("my-grpc-client"))
// Dial in using the created interceptor.
// Note: To use multiple UnaryInterceptors with grpc.Dial, you must use
// grpc.WithChainUnaryInterceptor instead.
conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure(),
grpc.WithStreamInterceptor(si), grpc.WithUnaryInterceptor(ui))
if err != nil {
log.Fatal(err)
}
defer conn.Close()
// And continue using the connection as normal.
}
func Example_server() {
// Create a listener for the server.
ln, err := net.Listen("tcp", ":50051")
if err != nil {
log.Fatal(err)
}
// Create the server interceptor using the grpc trace package.
si := grpctrace.StreamServerInterceptor(grpctrace.WithServiceName("my-grpc-server"))
ui := grpctrace.UnaryServerInterceptor(grpctrace.WithServiceName("my-grpc-server"))
// Initialize the grpc server as normal, using the tracing interceptor.
s := grpc.NewServer(grpc.StreamInterceptor(si), grpc.UnaryInterceptor(ui))
// ... register your services
// Start serving incoming connections.
if err := s.Serve(ln); err != nil {
log.Fatalf("failed to serve: %v", err)
}
}