NestJS Backend Common

All the utility functions and common modules I usually use in my NestJS applications will be published and maintained here.

[!NOTE]

Right now you might need to install @nestjs/graphql even though your developing a RESTful API. If that is the case open an issue with this title: "split package or modularize peer deps" (search for one first though), we can discuss how should we split this library into smaller libraries.

📚 View Full API Documentation.

📦 View the package on NPM.

Why nestjs-cls Is Peer Dependency?

This is because we wanna share the same storage between our App and this library. Thus we have to define it as peer dependency;

Peer Dependencies: These are dependencies that your project hooks into or modifies in the parent project, usually a plugin for some other library or tool. Peer dependencies are not automatically installed by npm. Instead, they are only checked for, ensuring that the parent project (the project that will depend on your project) has a dependency on the project you hook into. For example, if you create a plugin for a library like Chai, you would specify Chai as a peer dependency. This ensures that the user of your plugin has the correct version of Chai installed.

FAQ

• NPM ain't installing this library:

  npm error Cannot read properties of null (reading 'matches')
  npm error A complete log of this run can be found in: /home/mjb/.npm/_logs/2026-02-21T20_28_22_477Z-debug-0.log

  tl;dr would be either remove it from package.json and try to install it. Or use pnpm (learn more).