middleware-io

Middleware-IO - Modern middleware on Promise

Features

1. Self-Sufficient. The library has zero dependencies.
2. Reliable. The library is written in TypeScript and covered by tests.
3. Modern. The library comes with native ESM support
4. Powerful. Supports following additional features:
   • The library has enough built-in snippets;
   • The middleware chain builder;

Installation

Node.js 12.0.0 or newer is required

• Using npm (recommended)

  npm i middleware-io

• Using Yarn

  yarn add middleware-io

• Using pnpm

  pnpm add middleware-io

Example usage

import { compose } from 'middleware-io';

const composedMiddleware = compose([
	async (context, next) => {
		// Step 1

		await next();

		// Step 4

		// Print the current date from the next middleware
		console.log(context.now);
	},
	async (context, next) => {
		// Step 2

		context.now = Date.now();

		await next();

		// Step 3
	}
]);

composedMiddleware({}, () => { /* Last handler (next) */ })
	.then(() => {
		console.log('Middleware finished work');
	})
	.catch(console.error);