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62521e629d
This is a preparation to introduce an httpclient common package. And it makes it easier to use http from the standard library.
57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
// SPDX-FileCopyrightText: 2022 Free Mobile
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// SPDX-License-Identifier: AGPL-3.0-only
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package httpserver
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import "akvorado/common/reporter"
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type metrics struct {
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inflights reporter.Gauge
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requests *reporter.CounterVec
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durations *reporter.HistogramVec
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sizes *reporter.HistogramVec
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cacheHit *reporter.CounterVec
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cacheMiss *reporter.CounterVec
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}
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func (c *Component) initMetrics() {
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c.metrics.inflights = c.r.Gauge(
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reporter.GaugeOpts{
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Name: "inflight_requests",
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Help: "Number of requests currently being served by the HTTP server.",
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},
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)
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c.metrics.requests = c.r.CounterVec(
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reporter.CounterOpts{
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Name: "requests_total",
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Help: "Number of requests handled by an handler.",
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}, []string{"handler", "code", "method"},
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)
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c.metrics.durations = c.r.HistogramVec(
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reporter.HistogramOpts{
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Name: "request_duration_seconds",
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Help: "Latencies for served requests.",
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Buckets: []float64{.25, .5, 1, 2.5, 5, 10},
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}, []string{"handler", "method"},
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)
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c.metrics.sizes = c.r.HistogramVec(
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reporter.HistogramOpts{
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Name: "response_size_bytes",
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Help: "Response sizes for requests.",
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Buckets: []float64{200, 500, 1000, 1500, 5000},
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}, []string{"handler", "method"},
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)
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c.metrics.cacheHit = c.r.CounterVec(
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reporter.CounterOpts{
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Name: "cache_hit_total",
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Help: "Number of requests served from cache",
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}, []string{"path", "method"},
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)
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c.metrics.cacheMiss = c.r.CounterVec(
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reporter.CounterOpts{
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Name: "cache_miss_total",
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Help: "Number of requests not served from cache",
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}, []string{"path", "method"},
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)
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}
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