post-msg

Post message made simple

• Tiny
• 100% test coverage
• performant

Installation

npm install --save post-msg

Usage

• createPostMsg(window, origin): returns a postMsg instance
• postMsg.on(namespace, handler): listen for and handle post messages from target window
• postMsg.emit(namespace, data): send post messages to target window
• postMsg.dispose(): destroy postMsg instance and remove all listeners

example:

var createPostMsg = require('post-msg')
var postMsg = createPostMsg(targetWindow, '*')

postMsg.on('*', log) // listen to all post messages from the targetWindow

postMsg.on('namespace', log) // listen for namespaced post messages from the targetWindow

postMsg.emit('hello', { data: true }) // send a post message to the targetWindow

postMsg.dispose() // remove all event and post message listeners

function log (type, data, origin, source) {
  console.log(type, data, origin, source)
}