How To Add bitcoinjs-lib To A React Native v0.60+ Project

bitcoinjs-lib_Setup.md

How To Add bitcoinjs-lib To A React Native v0.60+ Project

Add/Link the following dependencies:

• yarn add bitcoinjs-lib ecpair @bitcoinerlab/secp256k1 react-native-randombytes buffer readable-stream
• yarn add --dev rn-nodeify
• cd ios && pod install && cd ..
• Add the following postinstall to your script in package.json: "postinstall": "rn-nodeify --install buffer,stream,assert,events,crypto,vm,process --hack"

Install any remaining dependencies and run postinstall.

NOTE: (If you receive an error about "shim.js" not existing just run yarn install again):

• yarn install

• Uncomment require('crypto') at the bottom of "shim.js". Or add require('crypto') to the bottom of "shim.js" if it doesn't exist.

• And finally, yarn install && cd ios && pod install && cd .. one more time.

To test if everything is working as expected place the following in render:

import './shim';
import ECPairFactory from 'ecpair';
import ecc from '@bitcoinerlab/secp256k1';
const bitcoin = require('bitcoinjs-lib');
const ECPair = ECPairFactory(ecc);
const keyPair = ECPair.makeRandom();
const {address} = bitcoin.payments.p2pkh({pubkey: keyPair.publicKey});
console.log(address);

An unedited video walkthrough of this guide can be found here:

• https://youtu.be/pKRM5eAZl8c (outdated)

Hi everyone! I'd like to let you know that there is a process for including these shims through using metro.config.js instead of rn-nodeify. I find it easier, plus you don't need to eject from expo.

PTAL if you wish - https://gist.github.com/techiejd/a14442315b5bfe0cba4ede7d2971a52f.