Nx with Express

Express is a mature, minimal, and an open source web framework for making web applications and apis. Nx scales your Express monorepo, so you can grow your APIs and shared libraries without losing fast, reliable builds.

Requirements

The @nx/express plugin supports the following package versions.

Package	Supported Versions
express	^4.0.0 || ^5.0.0

Nx generators install the latest supported versions automatically when scaffolding new projects.

Create a new workspace

Start from the Express template to scaffold a ready-to-run Express API:

npx create-nx-workspace@latest my-workspace --template nrwl/express-api-template

Setting up @nx/express

Installation

Keep Nx Package Versions In Sync

Make sure to install the @nx/express version that matches the version of nx in your repository. If the version numbers get out of sync, you can encounter some difficult to debug errors. You can fix Nx version mismatches with this recipe.

In any Nx workspace, you can install @nx/express by running the following command:

nx add @nx/express

This will install the correct version of @nx/express.

Guides

• Set Up Application Proxies
• Wait For Tasks To Finish

Set up CI for your Express monorepo

In CI, Nx runs nx affected to rebuild and retest only the projects a change touches, and caches results to skip repeated work.

For a complete pipeline, see Set up CI.