compose-simple-middleware v0.1.1

compose-simple-middleware

A utility module implementing the middleware design pattern.

Installation

If you want to use this in browser, simply download the src/compose-simple-middleware.js file and include it via a script tag. The module exposes a global variable called composeMiddleware.

If you want to use this in node.js, simply install via npm using npm install compose-simple-middleware and in your code use it by var composeMiddleware = require("compose-simple-middleware")

Usage

Pass an array of middleware functions of signature function (context, next) to get a composed function that accepts a context object and returns the value of operations performed.

When the returned function is called, the first function in the middleware array is invoked with the context. next() can be thought of as a reference to the next function in the middleware array, except that you don't have to pass arguments to it and this module takes care of passing context, next to the next function in the middleware list.

Examples

See test/test.js for simple and illustrative examples on how to use this module. Don't be overwhelmed by the directory being named test. They are just examples, specified in a way that we could make sure that they work correctly by running them and testing their outputs.

If you want a tutorial on how you can use the middleware pattern in your code, stay tuned.

License

MIT License. See LICENSE file.