mirror of
https://github.com/Luzifer/nginx-sso.git
synced 2024-12-21 05:11:17 +00:00
40 lines
1.2 KiB
Go
40 lines
1.2 KiB
Go
|
// 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 metric_test
|
||
|
|
|
||
|
|
import (
|
||
|
|
"net/http"
|
||
|
|
|
||
|
|
"go.opencensus.io/metric"
|
||
|
|
"go.opencensus.io/metric/metricdata"
|
||
|
|
)
|
||
|
|
|
||
|
|
func ExampleRegistry_AddInt64Gauge() {
|
||
|
|
r := metric.NewRegistry()
|
||
|
|
// TODO: allow exporting from a registry
|
||
|
|
|
||
|
|
g, _ := r.AddInt64Gauge("active_request",
|
||
|
|
metric.WithDescription("Number of active requests, per method."),
|
||
|
|
metric.WithUnit(metricdata.UnitDimensionless),
|
||
|
|
metric.WithLabelKeys("method"))
|
||
|
|
|
||
|
|
http.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {
|
||
|
|
e, _ := g.GetEntry(metricdata.NewLabelValue(request.Method))
|
||
|
|
e.Add(1)
|
||
|
|
defer e.Add(-1)
|
||
|
|
// process request ...
|
||
|
|
})
|
||
|
|
}
|