Envoi

Application message passing and loosly coupled module communication library. Mediators with namespaces and shit.

Installation

$ npm install envoi

Mediator

Mediator class. Publish and subscribe to namespaced events

Usage

var Mediator = require( 'envoi' ).Mediator
var mediator = new Mediator()
 
mediator.subscribe( "chat", logChatEvent )
mediator.subscribe( "chat::message", displayMessage )
 
mediator.publish( "chat::message", "shaggy87", "lol dope" )
// -> logChatEvent()
// -> displayMessage()
 

Api

Mediator.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.

Mediator.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

Mediator.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