Webpack TypeScript module.hot does not exist

Question

I want to enable Webpack HMR in a NodeJS project written in TypeScript.

But module.hot is not available:

• @types/webpack-env defines:

  declare var module: __WebpackModuleApi.Module
  

• Which conflicts with @types/node definition:

  declare var module: NodeModule
  

Removing @types/node, solves the issue, but disables process:

process.env.NODE_ENV === 'production' // [ts] Cannot find name 'process'

Answer 1

Conflict resolution

@types/webpack-env was since updated:

• Conflict on module was solved in this PR

• process was added in this commit

The code in the original question now only needs @types/webpack-env.

But importing @types/node alongside won't conflict anymore.

---

Installation

npm install --save-dev @types/webpack-env

And if you also need NodeJS environment definitions:

npm install --save-dev @types/node