mirror of
https://github.com/Luzifer/nginx-sso.git
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60 lines
1.6 KiB
Go
60 lines
1.6 KiB
Go
// Copyright 2017, OpenCensus 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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// Command jaeger is an example program that creates spans
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// and uploads to Jaeger.
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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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"go.opencensus.io/exporter/jaeger"
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"go.opencensus.io/trace"
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)
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func main() {
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ctx := context.Background()
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// Register the Jaeger exporter to be able to retrieve
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// the collected spans.
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exporter, err := jaeger.NewExporter(jaeger.Options{
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CollectorEndpoint: "http://localhost:14268/api/traces",
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Process: jaeger.Process{
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ServiceName: "trace-demo",
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},
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})
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if err != nil {
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log.Fatal(err)
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}
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trace.RegisterExporter(exporter)
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// For demoing purposes, always sample. In a production application, you should
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// configure this to a trace.ProbabilitySampler set at the desired
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// probability.
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trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
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ctx, span := trace.StartSpan(ctx, "/foo")
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bar(ctx)
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span.End()
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exporter.Flush()
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}
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func bar(ctx context.Context) {
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ctx, span := trace.StartSpan(ctx, "/bar")
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defer span.End()
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// Do bar...
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}
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