@loopback/docs/site/apidocs/extension-metrics.md

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---
lang: en
title: 'API docs: extension-metrics'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next/tree/master/extensions/metrics
permalink: /doc/en/lb4/apidocs.extension-metrics.html
---

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[Home](./index.md) &gt; [@loopback/extension-metrics](./extension-metrics.md)

## extension-metrics package

A component that reports metrics of Node.js, the LoopBack framework, and your application to Prometheus.

## Classes

|  Class | Description |
|  --- | --- |
|  [MetricsComponent](./extension-metrics.metricscomponent.md) | A component providing metrics for Prometheus |

## Interfaces

|  Interface | Description |
|  --- | --- |
|  [MetricsOptions](./extension-metrics.metricsoptions.md) |  |

## Namespaces

|  Namespace | Description |
|  --- | --- |
|  [MetricsBindings](./extension-metrics.metricsbindings.md) | Binding keys used by this component. |

## Variables

|  Variable | Description |
|  --- | --- |
|  [DEFAULT\_METRICS\_OPTIONS](./extension-metrics.default_metrics_options.md) |  |