Cross Domain Apps with Create React App and Zoid

This repo is source for a Youtube video and Medium article (also available on my Blog)

Purpose

The purpose of this repo is demonstrate a practical way of using create-react-app (CRA) with the Zoid library.

Both libraries are great, but the internet is devoid of good examples using both together!

More info on Zoid: https://github.com/krakenjs/zoid

More info on CRA: https://github.com/facebook/create-react-app

How to Use this Repo

1. Install the packages in parent-frame and child-frame using cd <dir> && npm i
   • They both have the same dependencies.
   • Note that npm start in child sets port to 2000. If you're on UNIX it should be PORT=2000 react-scripts start
2. In two seperate terminal windows, run npm start in both the child and parent frames
3. Observe that the child frame loads in the parent frame as <MyReactWidget {...props}>!

Key Takeaways

1. widget.js must exist in both Apps. If you don't have the source, you can load it via a script load:

import * as zoid from "zoid/dist/zoid.frameworks";

let MyWidget = zoid.create({
    tag: 'my-widget',
    url: 'http://localhost:2000/index.html'
})

console.log('yo! have loaded widget from parent: ')
console.log(MyWidget)

export default MyWidget

2. import * as zoid from "zoid/dist/zoid.frameworks"; NOT from "zoid"

3. If your child app/frame is a CRA/React, then use the following:

let MyReactWidget = MyWidget.driver('react',{
  React: React,
  ReactDOM: ReactDOM
})

whether you define (and export) this react-rendered frame in your child or parent is up to you (I think).