Helper methods for metadata

Usage no npm install needed!

<script type="module">
  import toruslabsMetadataHelpers from 'https://cdn.skypack.dev/@toruslabs/metadata-helpers';



npm version npm


This repo allow you to get and set metadata


  • Typescript compatible. Includes Type definitions
  • All API's return Promises



This module is distributed in 3 formats

  • commonjs build dist/metadataHelpers.cjs.js in es5 format
  • commonjs build dist/metadataHelpers-bundled.cjs.js in es5 format with problematic packages bundled (benfits non-webpack users)
  • umd build dist/metadataHelpers.umd.min.js in es5 format without polyfilling corejs minified
  • umd build dist/metadataHelpers.polyfill.umd.min.js in es5 format with polyfilling corejs minified

By default, the appropriate format is used for your specified usecase You can use a different format (if you know what you're doing) by referencing the correct file

The cjs build is not polyfilled with core-js. It is upto the user to polyfill based on the browserlist they target

Directly in Browser

CDN's serve the non-core-js polyfilled version by default. You can use a different


<script src="https://cdn.jsdelivr.net/npm/@toruslabs/metadata-helpers"></script>


<script src="https://unpkg.com/@toruslabs/metadata-helpers"></script>

Tips for NUXT

This is a plugin that works only on the client side. So please register it as a ssr-free plugin.


Add @toruslabs/metadata-helpers to your project:

To allow your web app to retrieve keys:

Install the package npm i @toruslabs/metadata-helpers or yarn add @toruslabs/metadata-helpers


  • This package requires a peer dependency of @babel/runtime
  • Node 10+