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Middleware pattern in JS

Middleware in JavaScript Middleware pattern in JS

Synopsis

This library is an skeleton for creation of middlewares which perform some processing at the start and end of a "request". Middleware functions are functions that have access to the object itself.

Installation

npm i --save es-middleware

or

git clone https://github.com/Zlobin/es-middleware.git
cd es-middleware && npm i && webpack

Examples

var mw = new Middleware(); var fn1 = function(next) {   this.foo = true;   next(); }; var fn2 = function(next) {   this.bar = true;   next(); } var fn3 = function(next) {   var self = this;    setTimeout(function(next) {     self.bar = false;     next();   }, 50); }; var startTime;  mw.use([fn1, fn2]))   .use(fn3);  startTime = Date.now();  mw.run(function() {   console.log(this.foo); // true   console.log(this.bar); // false   console.log('time', Date.now() - startTime); // ~50 });

Also you can set context for stack of MW functions.

var obj = new MyObj(); mw.setContext(obj);

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