nx/docs/shared/recipes/add-stack/add-express.md
2023-08-28 12:39:31 +02:00

3.0 KiB

Add a New Lit Project

Supported Features

Because we are using an Nx plugin for Lit, there are few items we'll have to configure manually. We'll have to configure our own build system. There are no pre-created Lit-specific code generators. And we'll have to take care of updating any framework dependencies as needed.

{% pill url="/core-features/run-tasks" %} Run Tasks{% /pill %} {% pill url="/core-features/cache-task-results" %} Cache Task Results{% /pill %} {% pill url="/core-features/remote-cache" %} Share Your Cache{% /pill %} {% pill url="/core-features/explore-graph" %} Explore the Graph{% /pill %} {% pill url="/core-features/distribute-task-execution" %} Distribute Task Execution{% /pill %} {% pill url="/core-features/integrate-with-editors" %} Integrate with Editors{% /pill %} {% pill url="/core-features/automate-updating-dependencies" %} Automate Updating Nx{% /pill %} {% pill url="/core-features/enforce-module-boundaries" %} Enforce Module Boundaries{% /pill %} {% pill url="/core-features/plugin-features/use-task-executors" %} Use Task Executors{% /pill %} {% pill url="/core-features/plugin-features/use-code-generators" %} Use Code Generators{% /pill %} {% pill url="/core-features/automate-updating-dependencies" %} Automate Updating Framework Dependencies{% /pill %}

Install the Express Plugin

{% tabs %} {%tab label="npm"%}

npm i --save-dev @nx/express

{% /tab %} {%tab label="yarn"%}

yarn add --dev @nx/express

{% /tab %} {% /tabs %}

Create an Application

Use the app generator to create a new Express app.

nx g @nx/express:app my-express-api

Serve the API by running

nx serve my-express-api

This starts the application on localhost:3333/api by default.

Create a Library

The @nx/express plugin does not have a library generator, but we can use the library generator from the @nx/js plugin. To create a new library, install the @nx/js package and run:

nx g @nx/js:lib my-lib

Once the library is created, update the following files.

export function someFunction(): string {
  return 'some function';
}
/**
 * This is not a production server yet!
 * This is only a minimal backend to get started.
 */

import express from 'express';
import * as path from 'path';

const app = express();

app.use('/assets', express.static(path.join(__dirname, 'assets')));

app.get('/api', (req, res) => {
  res.send({ message: 'Welcome to my-express-app!' });
});

const port = process.env.PORT || 3333;
const server = app.listen(port, () => {
  console.log(`Listening at http://localhost:${port}/api`);
});
server.on('error', console.error);

Now when you serve your API, you'll see the content from the library being displayed.

More Documentation