@tbd54566975/web5-react-native-polyfills

Background

This package provides an opinionated set of polyfills to:

- enable web5 to work on react-native with no custom setup
- increase performance using C++ native libraries similar to what underpins Node and Browser

$3

Use this package if:

- You're just getting started.
- You want to get up and running quickly on react native and don't want to spend time perfectly tweaking all of your globals and polyfills.

$3

Don't use this package if:

- You want to perfectly understand the global namespace and everything that's going on with your RN runtime and JS engine.
- You prefer to self manage the versions of all of these dependencies.
- You don't want us to version these dependencies for you.

Polyfills

| Package | Description |
| ------------------------------------- | ------------------------------------------------------------------------------------------------- |
| @craftzdog/react-native-buffer | Supply node Buffer with C++ |
| react-native-blob-jsi-helper | Supply Blob arrayBuffers with C++. |
| blob-polyfill.ts | Supply Blob.stream() and Blob.arrayBuffer(). Add Uint8Array support for Blob.constructor(). |
| react-native-quick-crypto | Supply the node crypto API with C++ OpenSSL |
| @peculiar/webcrypto | Supply the crypto.subtle webcrypto API with react-native-quick-crypto C++ OpenSSL |
| event-target-polyfill | Supply new EventTarget() with JS |
| realistic-structured-clone | Supply global.structuredClone with JS |
| web-streams-polyfill | Supply ReadableStream WritableStream with JS |
| readable-stream | Supply node stream with JS |
| react-native-url-polyfill | Supply the web & node new URL() API with JS |
| text-encoding | Supply new TextDecoder() with JS |
| @azure/core-asynciterator-polyfill | Supply AsyncIterator with JS |

Usage

Install this package along with the following peer packages:

``
yarn add @tbd54566975/web5-react-native-polyfills react-native-quick-crypto @craftzdog/react-native-buffer react-native-blob-jsi-helper
`

Add the following code to the top of your index.js entrypoint:

`js
import '@tbd54566975/web5-react-native-polyfills';
`

Add the following two entries inside the plugins key of your babel.config.js:

`js
["@babel/plugin-proposal-private-methods", { loose: true }],
[
"module-resolver",
{
alias: {
crypto: "react-native-quick-crypto",
stream: "readable-stream",
buffer: "@craftzdog/react-native-buffer"
},
},
],
`

For example (Expo):

`js
// babel.config.js
module.exports = function (api) {
api.cache(true);
return {
presets: ['babel-preset-expo'],
plugins: [
['@babel/plugin-proposal-private-methods', { loose: true }],
[
'module-resolver',
{
alias: {
crypto: 'react-native-quick-crypto',
stream: 'readable-stream',
buffer: '@craftzdog/react-native-buffer',
'bn.js': 'react-native-bignumber',
},
},
],
],
};
};
``