FaaSKit

A lightweight functional middleware framework for AWS lambda that stays out of your way and lets you build kick-ass, composable middleware for your lambdas.

Zero dependencies. Functional interface. Reusable code.

Table of Contents

• Installation
• Project Purpose
• Basic Usage
• Customizing Existing Middleware
• Creating Partial Middleware
• Building New Middleware

Installation

To use faaskit in your nodejs project,

yarn add @faaskit/core

or

npm i @faaskit/core

@faaskit/core has no dependencies itself (peer or otherwise), so that's it!

Project Purpose

The goal of this project is to provide a very thin middleware framework for AWS lambda. Without a well-established middleware pattern, too many bad habits can fossilize from one-off functions into bad middleware. This library provides a compose function for wrapping middleware around a handler without having deeply nested code. This function wrapping pattern allows explicitly definied, functional and onion-style (a well-established style) middleware. @faaskit/core also builds on the basic compose function, offering a few patterns that the author(s) have seen in the wild for rapid customization.

Too many middlework frameworks enforce bad designs and opinions onto their users. faaskit doesn't impose much at all and it stays out of your way once you define your stack.