AMP Viewer Messaging

The AMP Viewer Messaging library allows an AMP Viewer to establish a communication channel with an AMP document.

See Connecting AMP Viewers with AMP pages for more information.

Installation

Install via:

npm i @ampproject/viewer-messaging

Usage

Assuming you have an AMP document hosted on https://example.com/amp-document:

import {Messaging} from '@ampproject/viewer-messaging';

const iframe = document.createElement('iframe');
iframe.setAttribute(
  'src',
  `https://example.com/amp-document#origin=${window.location.origin}`
);
document.body.appendChild(iframe);

const messaging = await Messaging.waitForHandshakeFromDocument(
  /* source window */ window,
  /* target window */ iframe.contentWindow,
  /* target origin */ 'https://example.com'
);
messaging.setDefaultHandler((name, data, rsvp) => {
  console.log(`Received message: ${name}`);
});
// use messaging.sendRequest(...) to make requests to the AMP document

Note: The AMP document needs to include the amp-viewer-integration script:

<script async src="https://cdn.ampproject.org/v0/amp-viewer-integration-0.1.js"></script>