es-middleware
v1.1.3
Published
Basic implementation of the middleware pattern in JavaScript
Downloads
10
Readme
Middleware in JavaScript
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);