envoi

Envoi

Loosly coupled and namespaced communication. Mediator, pub/sub pattern.

Installation

$ npm install envoi

Usage

var Envoi = require( 'envoi' ).Envoi
var envoi = new Envoi()

envoi.subscribe( "chat", logChatEvent )
envoi.subscribe( "chat::message", displayMessage )

// 'chat' and 'chat::message' will fire because of namespacing
envoi.publish( "chat::message", "shaggy87", "lol dope" )

Api

Envoi.prototype.subscribe( channel, callback, context )

Subscribe to the given channel/namespace. Call the given callback with the given context as 'this' when that channels is published to.

Envoi.prototype.unsubscribe( channel, callback )

Unsubscribe from channel. If only channel is given all callbacks that match the channels namspace will be removed. If callback is given it will only remove subscriptions that has that specific callback

Envoi.prototype.publish( channel, args.. )

Publishes to the channel, calling all subscribing callbacks with the rest of the arguments as arguments to the calback function[s].

License

MIT licensed