49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
package http
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import (
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"time"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/chihaya/chihaya/bittorrent"
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)
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func init() {
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prometheus.MustRegister(promResponseDurationMilliseconds)
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}
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var promResponseDurationMilliseconds = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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Name: "chihaya_http_response_duration_milliseconds",
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Help: "The duration of time it takes to receive and write a response to an API request",
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Buckets: prometheus.ExponentialBuckets(9.375, 2, 10),
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},
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[]string{"action", "address_family", "error"},
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)
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// recordResponseDuration records the duration of time to respond to a Request
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// in milliseconds.
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func recordResponseDuration(action string, af *bittorrent.AddressFamily, err error, duration time.Duration) {
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var errString string
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if err != nil {
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if _, ok := err.(bittorrent.ClientError); ok {
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errString = err.Error()
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} else {
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errString = "internal error"
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}
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}
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var afString string
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if af == nil {
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afString = "Unknown"
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} else if *af == bittorrent.IPv4 {
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afString = "IPv4"
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} else if *af == bittorrent.IPv6 {
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afString = "IPv6"
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}
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promResponseDurationMilliseconds.
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WithLabelValues(action, afString, errString).
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Observe(float64(duration.Nanoseconds()) / float64(time.Millisecond))
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}
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