xmidt-org/themis

package main

import (
    "github.com/xmidt-org/themis/xmetrics"
    "github.com/xmidt-org/themis/xmetrics/xmetricshttp"

    "github.com/prometheus/client_golang/prometheus"
    "go.uber.org/fx"
)

// ServerLabel is the metric label for which internal server (key, claims, etc) a metric is for
const ServerLabel = "server"

// provideMetrics builds the application metrics and makes them available to the container
func provideMetrics() fx.Option {
    return fx.Provide(
        xmetrics.ProvideCounterVec(
            prometheus.CounterOpts{
                Name: "server_request_count",
                Help: "total incoming HTTP requests",
            },
            xmetricshttp.DefaultCodeLabel,
            xmetricshttp.DefaultMethodLabel,
            ServerLabel,
        ),
        xmetrics.ProvideHistogramVec(
            prometheus.HistogramOpts{
                Name: "server_request_duration_ms",
                Help: "tracks incoming request durations in ms",
            },
            xmetricshttp.DefaultCodeLabel,
            xmetricshttp.DefaultMethodLabel,
            ServerLabel,
        ),
        xmetrics.ProvideGaugeVec(
            prometheus.GaugeOpts{
                Name: "server_requests_in_flight",
                Help: "tracks the current number of incoming requests being processed",
            },
            ServerLabel,
        ),
        xmetrics.ProvideCounterVec(
            prometheus.CounterOpts{
                Name: "client_request_count",
                Help: "total outgoing HTTP requests",
            },
            xmetricshttp.DefaultCodeLabel,
            xmetricshttp.DefaultMethodLabel,
        ),
        xmetrics.ProvideHistogramVec(
            prometheus.HistogramOpts{
                Name: "client_request_count",
                Help: "total outgoing HTTP requests",
            },
            xmetricshttp.DefaultCodeLabel,
            xmetricshttp.DefaultMethodLabel,
        ),
        xmetrics.ProvideGaugeVec(
            prometheus.GaugeOpts{
                Name: "client_requests_in_flight",
                Help: "tracks the current number of incoming requests being processed",
            },
        ),
    )
}