Hot Hook

Hot Hook is a simple and lightweight library for adding hot module replacement in NodeJS with ESM.

You know how in frameworks like React or VueJS, you edit a file and the page updates automatically without needing to refresh? Well, it's the same concept but for NodeJS.

Take an Express server, for example. The most common development process involves watching the entire project with tools like nodemon and restarting the whole server whenever a file changes. With Hot Hook, you no longer need to restart the entire server; you can make it so only the changed module/file is reloaded. This provides a much faster DX and feedback loop.

The library is designed to be very light and simple. It doesn't perform any dark magic, no AST parsing, no code transformation, no bundling. It just reloads the changed module.

https://github.com/julien-R44/hot-hook

✍️ @nodejs_lib