When using Next.js in Nx, you get the out-of-the-box support for TypeScript, Cypress, and Jest. No need to configure anything: watch mode, source maps, and typings just work.
The Next.js plugin contains executors and generators for managing Next.js applications and libraries within an Nx workspace. It provides:
- Scaffolding for creating, building, serving, linting, and testing Next.js applications.
- Integration with building, serving, and exporting a Next.js application.
- Integration with React libraries within the workspace.
Setting up Next.js
To create a new Nx workspace with Next.js, run npx create-nx-workspace@latest --preset=next
.
To add Next.js to an existing Nx workspace, install the @nx/next
package. Make sure to install the version that matches your @nx/workspace
version.
yarn
yarn add --dev @nx/next
npm
npm install --save-dev @nx/next
Creating Applications
You can add a new application with the following:
nx g @nx/next:app my-new-app
Generating Libraries
Nx allows you to create libraries with just one command. Some reasons you might want to create a library include:
- Share code between applications
- Publish a package to be used outside the monorepo
- Better visualize the architecture using
nx graph
For more information on Nx libraries, see our documentation on Creating Libraries and Library Types.
To generate a new library run:
nx g @nx/next:lib my-new-lib
Generating Pages and Components
Nx also provides commands to quickly generate new pages and components for your application.
nx g @nx/next:page my-new-page --project=my-new-app
nx g @nx/next:component my-new-component --project=my-new-app
Above commands will add a new page my-new-page
and a component my-new-component
to my-new-app
project respectively.
Nx generates components with tests by default. For pages, you can pass the --withTests
option to generate tests under the specs
folder.
Using Next.js
Serving Next.js Applications
You can run nx serve my-new-app
to serve a Next.js application called my-new-app
for development. This will start the dev server at http://localhost:4200.
To serve a Next.js application for production, add the --prod
flag to the serve command:
nx serve my-new-app --prod
Using an Nx Library in your Application
You can import a library called my-new-lib
in your application as follows.
import { MyNewLib } from '@<your nx workspace name>/my-new-lib';
export function Index() {
return (
<MyNewLib>
<p>The main content</p>
</MyNewLib>
);
}
export default Index;
There is no need to build the library prior to using it. When you update your library, the Next.js application will automatically pick up the changes.
Publishable libraries
For libraries intended to be built and published to a registry (e.g. npm) you can use the --publishable
and --importPath
options.
nx g @nx/next:lib my-new-lib --publishable --importPath=@happynrwl/ui-components
Testing Projects
You can run unit tests with:
nx test my-new-app
nx test my-new-lib
Replace my-new-app
and my-new-lib
with the name or the project you want to test. This command works for both applications and libraries.
You can also run E2E tests for applications:
nx e2e my-new-app-e2e
Replace my-new-app-e2e
with the name or your project with -e2e appended.
Linting Projects
You can lint projects with:
nx lint my-new-app
nx lint my-new-lib
Replace my-new-app
and my-new-lib
with the name or the project you want to test. This command works for both applications and libraries.
Building Projects
Next.js applications can be build with:
nx build my-new-app
And if you generated a library with --buildable, then you can build a library as well:
nx build my-new-lib
After running a build, the output will be in the dist
folder. You can customize the output folder by setting outputPath
in the project's project.json
file.
The library in dist
is publishable to npm or a private registry.
Static HTML Export
Next.js applications can be statically exported with:
nx export my-new-app
Deploying Next.js Applications
Once you are ready to deploy your Next.js application, you have absolute freedom to choose any hosting provider that fits your needs.
You may know that the company behind Next.js, Vercel, has a great hosting platform offering that is developed in tandem with Next.js itself to offer a great overall developer and user experience. We have detailed how to deploy your Next.js application to Vercel in a separate guide.
More Documentation
Here are other resources that you may find useful to learn more about Next.js and Nx.
- Blog post: Building a blog with Next.js and Nx Series by Juri Strumpflohner
- Video tutorial: Typescript NX Monorepo with NextJS and Express by Jack Herrington