koa-liveness-ping

@shopify/koa-liveness-ping

A package for creating liveness ping middleware for use with Koa.

A liveness ping is a URL at which your application will respond with a 200 whenever your server is running. It can be used, for example, for liveness checks in Kubernetes deployments.

Installation

yarn add @shopify/koa-liveness-ping

Usage

import Koa from 'koa';
import ping from '@shopify/koa-liveness-ping';

const app = new Koa();

// set up any error or loggin middlewares

app.use(ping());

// other routing middlewares should go after the liveness ping

This middleware can also be mounted at any path via koa-mount (Learn more).

Note: Mount the liveness ping middleware before all other routing-related middleware in order to ensure it can respond quickly and reliably.