113 lines
3.1 KiB
Markdown
113 lines
3.1 KiB
Markdown
---
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title: Node.js Plugin for Nx
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description: Learn how to use the @nx/node plugin to create and manage Node.js applications and libraries in your Nx workspace, including setup, building, and testing.
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---
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The Node Plugin contains generators and executors to manage Node applications within an Nx workspace. It provides:
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## Setting Up @nx/node
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### Installation
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{% callout type="note" title="Keep Nx Package Versions In Sync" %}
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Make sure to install the `@nx/node` 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).
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{% /callout %}
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In any Nx workspace, you can install `@nx/node` by running the following command:
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{% tabs %}
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{% tab label="Nx 18+" %}
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```shell {% skipRescope=true %}
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nx add @nx/node
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```
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This will install the correct version of `@nx/node`.
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{% /tab %}
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{% tab label="Nx < 18" %}
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Install the `@nx/node` package with your package manager.
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```shell
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npm add -D @nx/node
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```
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{% /tab %}
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{% /tabs %}
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## Using the @nx/node Plugin
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### Creating Applications
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You can add a new application with the following:
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```shell
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nx g @nx/node:application apps/my-new-app
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```
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You can run your application with `nx serve my-new-app`, which starts it in watch mode.
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### Creating Libraries
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Node libraries are a good way to separate features within your organization. To create a Node library run the following command:
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```shell
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nx g @nx/node:lib libs/my-new-lib
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# If you want the library to be buildable or publishable to npm
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nx g @nx/node:lib libs/my-new-lib --buildable
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nx g @nx/node:lib libs/my-new-lib \
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--publishable \
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--importPath=@myorg/my-new-lib
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```
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## Using Node
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### Testing Projects
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You can run unit tests with:
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```shell
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nx test my-new-app
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nx test my-new-lib
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```
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Replace `my-new-app` with the name or your project. This command works for both applications and libraries.
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### Building Projects
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Node applications can be build with:
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```shell
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nx build my-new-app
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```
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And if you generated a library with `--buildable`, then you can build a library as well:
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```shell
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nx build my-new-lib
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```
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The output is in the `dist` folder. You can customize the output folder by setting `outputPath` in the project's `project.json` file.
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### Application Proxies
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Generating Node applications has an option to configure other projects in the workspace to proxy API requests. This can be done by passing the `--frontendProject` with the project name you wish to enable proxy support for.
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```shell
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nx g @nx/node:application apps/my-new-app \
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--frontendProject my-react-app
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```
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### Debugging
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Debugging is set to use a random port that is available on the system. The port can be changed by setting the port option in the `serve` target in the project.json. Or by running the serve command with `--port <number>`.
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For additional information on how to debug Node applications, see the [Node.js debugging getting started guide](https://nodejs.org/en/docs/guides/debugging-getting-started/#inspector-clients).
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## More Documentation
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- [Using Cypress](/nx-api/cypress)
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- [Using Jest](/nx-api/jest)
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