--- title: Overview of the Nx Next.js Plugin description: The Nx Next.js plugin contains executors and generators for managing Next.js applications and libraries within an Nx workspace. This page also explains how to configure Next.js on your Nx workspace. --- 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 @nx/next To create a new Nx workspace with Next.js, run: ```shell npx create-nx-workspace@latest --preset=next ``` ### Installation {% callout type="note" title="Keep Nx Package Versions In Sync" %} Make sure to install the `@nx/next` 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](/recipes/tips-n-tricks/keep-nx-versions-in-sync). {% /callout %} In any workspace, you can install `@nx/next` by running the following command: {% tabs %} {% tab label="Nx 18+" %} ```shell nx add @nx/next ``` This will install the correct version of `@nx/next`. ### How @nx/next Infers Tasks The `@nx/next` plugin will create tasks for any project that has a Next.js configuration file preset. Any of the following files will be recognized as a Next.js configuration file: - `next.config.js` - `next.config.cjs` - `next.config.mjs` ### View Inferred Tasks To view inferred tasks for a project, open the [project details view](/concepts/inferred-tasks) in Nx Console or run `nx show project --web` in your command line. ### @nx/next Configuration The `@nx/next/plugin` is configured in the `plugins` array in `nx.json`. ```json {% fileName="nx.json" %} { "plugins": [ { "plugin": "@nx/next/plugin", "options": { "buildTargetName": "build", "devTargetName": "dev", "startTargetName": "start" } } ] } ``` - The `buildTargetName` option controls the name of Next.js' compilation task which compiles the application for production deployment. The default name is `build`. - The `devTargetName` option controls the name of Next.js' development serve task which starts the application in development mode. The default name is `dev`. - The `startTargetName` option controls the name of Next.js' production serve task which starts the application in production mode. The default name is `start`. {% /tab %} {% tab label="Nx < 18" %} Install the `@nx/next` package with your package manager. ```shell npm add -D @nx/next ``` {% /tab %} {% /tabs %} ## Using @nx/next ### Creating Applications You can add a new application with the following: ```shell 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](/concepts/more-concepts/creating-libraries) and [Library Types](/concepts/more-concepts/library-types). To generate a new library run: ```shell 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. ```shell 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 {% tabs %} {% tab label="Nx 18+" %} You can serve a Next.js application `my-new-app` for development: ```shell nx dev my-new-app ``` To serve a Next.js application for production: ```shell nx start my-new-app ``` This will start the server at by default. {% /tab %} {% tab label="Nx < 18" %} 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 . To serve a Next.js application for production, add the `--prod` flag to the serve command: ```shell nx serve my-new-app --prod ``` {% /tab %} {% /tabs %} ### Using an Nx Library in your Application You can import a library called `my-new-lib` in your application as follows. ```typescript jsx {% fileName="apps/my-next-app/pages/index.tsx" %} import { MyNewLib } from '@/my-new-lib'; export function Index() { return (

The main content

); } 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. ```shell nx g @nx/next:lib my-new-lib --publishable --importPath=@happynrwl/ui-components ``` ### Testing Projects You can run unit tests with: ```shell 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: ```shell 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: ```shell 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: ```shell nx build my-new-app ``` And if you generated a library with --buildable, then you can build a library as well: ```shell 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 by changing the output inside your Next.js configuration file. ```js {% fileName="apps/my-next-app/next.config.js" %} const nextConfig = { output: 'export', nx: { svgr: false, }, }; ``` ### 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](/recipes/react/deploy-nextjs-to-vercel). ## 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](https://blog.nrwl.io/create-a-next-js-web-app-with-nx-bcf2ab54613) by Juri Strumpflohner - **Video tutorial:** [Typescript NX Monorepo with NextJS and Express](https://www.youtube.com/watch?v=WOfL5q2HznI) by Jack Herrington