54 lines
1.3 KiB
Markdown
54 lines
1.3 KiB
Markdown
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# Overview
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This is the [Prometheus](http://www.prometheus.io) telemetric
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instrumentation client [Go](http://golang.org) client library. It
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enable authors to define process-space metrics for their servers and
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expose them through a web service interface for extraction,
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aggregation, and a whole slew of other post processing techniques.
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# Installing
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$ go get github.com/prometheus/client_golang/prometheus
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# Example
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```go
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package main
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import (
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"net/http"
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"github.com/prometheus/client_golang/prometheus"
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)
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var (
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indexed = prometheus.NewCounter(prometheus.CounterOpts{
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Namespace: "my_company",
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Subsystem: "indexer",
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Name: "documents_indexed",
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Help: "The number of documents indexed.",
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})
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size = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: "my_company",
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Subsystem: "storage",
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Name: "documents_total_size_bytes",
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Help: "The total size of all documents in the storage.",
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})
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)
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func main() {
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http.Handle("/metrics", prometheus.Handler())
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indexed.Inc()
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size.Set(5)
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http.ListenAndServe(":8080", nil)
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}
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func init() {
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prometheus.MustRegister(indexed)
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prometheus.MustRegister(size)
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}
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```
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# Documentation
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[](https://godoc.org/github.com/prometheus/client_golang)
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