forked from donners/opencensus-go
/
main.go
53 lines (42 loc) · 1.41 KB
/
main.go
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// Copyright 2018, OpenCensus Authors
//
// Licensed 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 main
import (
"log"
"net/http"
"time"
"go.opencensus.io/plugin/ochttp"
"go.opencensus.io/trace"
"go.opencensus.io/examples/exporter"
"go.opencensus.io/stats/view"
)
const server = "http://localhost:50030"
func main() {
// Register stats and trace exporters to export the collected data.
exporter := &exporter.PrintExporter{}
view.RegisterExporter(exporter)
trace.RegisterExporter(exporter)
// Always trace for this demo.
trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
// Report stats at every second.
view.SetReportingPeriod(1 * time.Second)
client := &http.Client{Transport: &ochttp.Transport{}}
resp, err := client.Get(server)
if err != nil {
log.Printf("Failed to get response: %v", err)
} else {
resp.Body.Close()
}
time.Sleep(2 * time.Second) // Wait until stats are reported.
}