ReferenceError: require is undefined

[coryvirok]

For anyone else running into this issue -

While attempting to use this module from an ES6 module, (type: "module" in package.json) I get the following error:

ReferenceError: require is not defined
    at /@fs/Users/dwight/Development/project/node_modules/.pnpm/farmhash@3.2.2/node_modules/farmhash/index.js:3:18
    at instantiateModule 

This corresponds to the require code here -

farmhash/index.js

Line 5 in 2325f1e

return require('./build/Release/farmhash.node');

I attempted to add a type: "commonjs" key to the farmhash package.json but that didn't help.

I was able to get past the error by importing farmhash using:

// lib/vendor/farmhash.ts
import { createRequire } from 'module'
const require = createRequire(import.meta.url)
const farmhash = require('farmhash')

export default farmhash

// app.ts

import farmhash from './lib/vendor/farmhash'

// ...

I'm not too sure how to fix the issue since I was unable to get the package to build in my fork. But hopefully this helps.

[lovell]

Are you using a code bundler such as webpack or esbuild? If so, add farmhash to its external(s) config.

[lovell]

According to #44, ensuring farmhash is included in externals does not fix this.

If you're using webpack 5, are you also specifying externalsType?

https://webpack.js.org/configuration/externals/#externalstypenode-commonjs

If you're still having problems, please can you share webpack configuration, ideally as a small repo with a minimal set of configuration that allows someone else to reproduce.

[LadyAiss]

Hello @lovell,
Thank you for the reply.
I have added externalsType as well but it didn't fix it.

module.exports = {
  // ...
  externalsType: 'commonjs',
 externals: {
    'farmhash': 'commonjs farmhash'
  }
};

[tomplex]

hey @lovell, do you have any other recommendations about how to solve this? We're also running into this issue, our build is just installing with npm install and building with tsc with a target of ES2020 and module commonjs. Not sure how / if this is related, but it's only happening for developers with macs, not those running linux.

[lovell]

A small repo with a minimal set of configuration that allows someone else to reproduce would be very useful.

[lovell]

Closing due to inactivity but, if further help is required, please feel free to reopen with a minimal set of configuration that allows someone else to reproduce