125 lines
4.0 KiB
Markdown
125 lines
4.0 KiB
Markdown
# Node Nx Tutorial - Step 1: Create Application
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## Nx.dev Tutorial | Node | Step 1: Create Application
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<iframe width="560" height="315" src="https://www.youtube.com/embed/UcBSBQYNlhE" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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In this tutorial you will use Nx to build a server application out of common libraries using modern technologies.
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## Create a New Workspace
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**Start by creating a new workspace.**
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```bash
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npx create-nx-workspace@latest
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```
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You will then receive the following prompts in your command line:
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```
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? Workspace name (e.g., org name) myorg
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? What to create in the new workspace nest
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? Application name todos
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```
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```treeview
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myorg/
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├── README.md
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├── apps/
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│ └── todos/
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│ ├── jest.config.js
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│ ├── src/
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│ │ ├── app/
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│ │ │ ├── app.controller.spec.ts
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│ │ │ ├── app.controller.ts
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│ │ │ ├── app.module.ts
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│ │ │ ├── app.service.spec.ts
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│ │ │ └── app.service.ts
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│ │ ├── assets/
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│ │ ├── environments/
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│ │ │ ├── environment.prod.ts
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│ │ │ └── environment.ts
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│ │ └── main.ts
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│ ├── tsconfig.app.json
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│ ├── tsconfig.json
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│ └── tsconfig.spec.json
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├── tools/
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│ ├── generators
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│ └── tsconfig.tools.json
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├── jest.config.js
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├── libs
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├── nx.json
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├── package.json
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├── tsconfig.base.json
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└── workspace.json
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```
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The generate command added one project to our workspace:
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- A Nest application
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## Note on the Nx CLI
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Depending on how your dev env is set up, the command above might result in `Command 'nx' not found`.
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To fix it, you can either install the `nx` cli globally by running:
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```bash
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npm install -g nx
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```
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or
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```bash
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yarn global add nx
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```
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Or you can prepend every command with `npm run`:
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```bash
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npm run nx -- serve todos
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```
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or
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```bash
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yarn nx serve todos
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```
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## Workspace.json, Targets, Builders
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You configure your workspaces in `workspace.json`. This file contains the workspace projects with their architect targets. For instance, `todos` has the `build`, `serve`, `lint`, and `test` targets. This means that you can run `nx build todos`, `nx serve todos`, etc..
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Every target uses a builder which actually runs this target. So targets are analogous to typed npm scripts, and builders are analogous to typed shell scripts.
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**Why not use shell scripts and npm scripts directly?**
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There are a lot of advantages to providing additional metadata to the build tool. For instance, you can introspect targets. `nx serve todos --help` results in:
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```bash
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nx run todos:serve [options,...]
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Options:
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--buildTarget The target to run to build you the app
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--waitUntilTargets The targets to run to before starting the node app (default: )
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--host The host to inspect the process on (default: localhost)
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--port The port to inspect the process on. Setting port to 0 will assign random free ports to all forked processes.
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--watch Run build when files change (default: true)
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--inspect Ensures the app is starting with debugging (default: inspect)
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--runtimeArgs Extra args passed to the node process (default: )
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--args Extra args when starting the app (default: )
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--help Show available options for project target.
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```
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It helps with good editor integration (see [VSCode Support](https://nx.dev/node/getting-started/console)).
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But, most importantly, it provides a holistic dev experience regardless of the tools used, and enables advanced build features like distributed computation caching and distributed builds).
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## Serve the newly created application
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Now that the application is set up, run it locally via:
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```bash
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nx serve todos
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```
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