23 lines
881 B
Go
23 lines
881 B
Go
// Copyright 2016 Circonus, Inc. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package circonusgometrics
|
|
|
|
import (
|
|
"net/http"
|
|
"time"
|
|
)
|
|
|
|
// TrackHTTPLatency wraps Handler functions registered with an http.ServerMux tracking latencies.
|
|
// Metrics are of the for go`HTTP`<method>`<name>`latency and are tracked in a histogram in units
|
|
// of seconds (as a float64) providing nanosecond ganularity.
|
|
func (m *CirconusMetrics) TrackHTTPLatency(name string, handler func(http.ResponseWriter, *http.Request)) func(http.ResponseWriter, *http.Request) {
|
|
return func(rw http.ResponseWriter, req *http.Request) {
|
|
start := time.Now().UnixNano()
|
|
handler(rw, req)
|
|
elapsed := time.Now().UnixNano() - start
|
|
m.RecordValue("go`HTTP`"+req.Method+"`"+name+"`latency", float64(elapsed)/float64(time.Second))
|
|
}
|
|
}
|