svjs-message-broker

ES6 component to provide a subscriber and publish pattern for in app communication with loose bindung.

It's just a simple message broker and it works.

MessageBroker

• A Subscriber (callback) can subscribe to a message type (topic)
• The MessageBroker can publish asynchronous messages with data to Subscribers

Usage

Subscribe and publish

import {MessageBroker} from "./src/svjs-message-broker/MessageBroker.js"

const messageBroker = new MessageBroker()

const testMessage = function testMessage(data) {
    this.data = data
}
const subscriber = function(message) {
    console.log(message.data)
}

// subscribe to message type/topic 'testMessage'
messageBroker.subscribe(testMessage, subscriber)

// publish a message of type 'testMessage'
messageBroker.publish(new testMessage("Hello"))

Unsubscribe

Unsubscribe a subscriber for a message type

messageBroker.unsubscribe(testMessage, subscriber)

Unsubscribe all subscribers for a message type

messageBroker.unsubscribe(testMessage)

Unsubscribe all topic for a subscriber

messageBroker.subscribe(null, subscriber)

Test

Run Mocha tests with

npm test