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amp-toolbox-runtime-version

0.2.6 • Public • Published

AMP Runtime Version

npm version

Use it to query cdn.ampproject.org for the current release or canary version of the AMP Runtime. Uses a stale-while-revalidate caching strategy to avoid network requests in the critical path.

You can use the API to re-write AMP runtime URLs to their versioned counter parts to improve browser caching, e.g. to replace:

https://cdn.ampproject.org/v0.css

with:

https://cdn.ampproject.org/rtv/001515617716922/v0.css

Installation

Install via:

npm install amp-toolbox-runtime-version

Usage

Basic usage:

const runtimeVersion = require('amp-toolbox-runtime-version');
 
// Release version
runtimeVersion.currentVersion().then(version => {
  console.log(version);
});
 
// Canary version
runtimeVersion.currentVersion({canary: true}).then(version => {
  console.log(version);
});
 
// Rewriting cache URLs
const ampRuntimeUrl = 'https://cdn.ampproject.org/v0.js';
const version = await runtimeVersion.currentVersion();
const versionedAmpRuntimeUrl = ampRuntimeUrl.replace(
  'https://cdn.ampproject.org/',
  'https://cdn.ampproject.org/rtv/' + version + '/'
);
console.log(versionedAmpRuntimeUrl);

Keywords

install

npm i amp-toolbox-runtime-version

Downloadsweekly downloads

34,819

version

0.2.6

license

Apache-2.0

homepage

github.com

repository

Gitgithub

last publish

collaborators

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