example_trace_test.go

// Licensed to SkyAPM org under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. SkyAPM org licenses this file to you 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.

package go2sky_test

import (
	"context"
	"log"
	"time"

	"github.com/SkyAPM/go2sky"
	"github.com/SkyAPM/go2sky/reporter"
)

func ExampleNewTracer() {
	// Use gRPC reporter for production
	r, err := reporter.NewLogReporter()
	if err != nil {
		log.Fatalf("new reporter error %v \n", err)
	}
	defer r.Close()
	tracer, err := go2sky.NewTracer("example", go2sky.WithReporter(r))
	if err != nil {
		log.Fatalf("create tracer error %v \n", err)
	}
	// This for test
	tracer.WaitUntilRegister()
	span, ctx, err := tracer.CreateLocalSpan(context.Background())
	if err != nil {
		log.Fatalf("create new local span error %v \n", err)
	}
	span.SetOperationName("invoke data")
	span.Tag("kind", "outer")
	time.Sleep(time.Second)
	subSpan, _, err := tracer.CreateLocalSpan(ctx)
	if err != nil {
		log.Fatalf("create new sub local span error %v \n", err)
	}
	subSpan.SetOperationName("invoke inner")
	subSpan.Log(time.Now(), "inner", "this is right")
	time.Sleep(time.Second)
	subSpan.End()
	time.Sleep(500 * time.Millisecond)
	span.End()
	time.Sleep(time.Second)
	// Output:
}