I have React Native project, where I installed a npm package, which used itself crypto module of node (require('crypto')) and it causing issues with React Native. is there any modern / clean way to somehow resolve this part, and use React Native compatible library, where node crypto is "required"?
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1 Answer
You can use rn-nodeify package which allow you to use node core modules in your React Native app.
npm install rn-nodeify
install specific shims and hack
rn-nodeify --install "fs,dgram,process,path,console" --hack
It is recommended to add this command to the "postinstall" script in your project's package.json
"scripts": {
"start": "node node_modules/react-native/local-cli/cli.js start",
"postinstall": "rn-nodeify --install fs,dgram,process,path,console --hack"
}
rn-nodeify will create a shim.js file in your project root directory. The first line in index.ios.js / index.android.js should be to import it (NOT require it!)
import './shim'
Example
// index.ios.js or index.android.js
// make sure you use `import` and not `require`!
import './shim.js'
// ...the rest of your code
import crypto from 'crypto'
// use crypto
console.log(crypto.randomBytes(32).toString('hex'))
for more details Visit nodeify package
Hopefully it will resolve your problem.
2 Comments
Arkadi
The problem is that, one of the npm packages uses
require('crypto'), and that's causing problem
Aqeel Ahmad
could you share which npm package required
crypto? one suggestion: you can use same package and can change accordingly in node-module of that package which required crypto and make its patch.