Creating and Running Your First Nest.js App

To start working with Nest.js, you need to create a new project. You can do this using the Nest CLI without installing it globally.

Run the following command:

npx @nestjs/cli new my-app

This will create a new Nest.js application with all required files and dependencies.

You will be asked to choose a package manager. Select the one you prefer and wait for the setup to complete.

Once the project is created, move into the project folder:

cd my-app

Now start the application:

npm run start

For development, use:

npm run start:dev

This command automatically restarts the server when you change files.

By default, the server runs on:

http://localhost:3000

Open this address in your browser, and you will see a simple response from the server.

At this point, you already have a running Nest.js application.