Next.js: configuración del entorno

Como Next.js es un marco basado en reacciones, estamos utilizando el entorno Node. Ahora asegúrate de tenerNode.js y npminstalado en su sistema. Puede usar el siguiente comando para instalar Next.js:

npm install next react react-dom

Puede observar el siguiente resultado una vez que Next.js se haya instalado correctamente:

+ [email protected]
+ [email protected]
+ [email protected]
added 831 packages from 323 contributors and audited 834 packages in 172.989s

Ahora, creemos un paquete de nodo.json -

npm init

Seleccione los valores predeterminados al crear un package.json -

This utility will walk you through creating a package.json file.
It only covers the most common items, and tries to guess sensible defaults.

See `npm help json` for definitive documentation on these fields
and exactly what they do.

Use `npm install <pkg>` afterwards to install a package and
save it as a dependency in the package.json file.

Press ^C at any time to quit.
package name: (nextjs)
version: (1.0.0)
description:
entry point: (index.js)
test command:
git repository:
keywords:
author:
license: (ISC)
About to write to \Node\nextjs\package.json:
{
   "name": "nextjs",
   "version": "1.0.0",
   "description": "",
   "main": "index.js",
   "dependencies": {
      "next": "^9.4.4",
      "react": "^16.13.1",
      "react-dom": "^16.13.1"
   },
   "devDependencies": {},
   "scripts": {
      "test": "echo \"Error: no test specified\" && exit 1"
   },
   "author": "",
   "license": "ISC"
}
Is this OK? (yes)

Ahora actualice la sección de scripts de package.json para incluir comandos de Next.js.

{
   "name": "nextjs",
   "version": "1.0.0",
   "description": "",
   "main": "index.js",
   "dependencies": {
      "next": "^9.4.4",
      "react": "^16.13.1",
      "react-dom": "^16.13.1"
   },
   "devDependencies": {},
   "scripts": {
      "test": "echo \"Error: no test specified\" && exit 1",
      "dev": "next",
      "build": "next build",
      "start": "next start"
   },
   "author": "",
   "license": "ISC"
}

Crear directorio de páginas.

Cree una carpeta de páginas dentro de la carpeta nextjs y cree un archivo index.js con el siguiente contenido.

function HomePage() {
   return <div>Welcome to Next.js!</div>
}

export default HomePage

Inicie el servidor Next.js

Ejecute el siguiente comando para iniciar el servidor:

npm run dev
> [email protected] dev \Node\nextjs
> next

ready - started server on http://localhost:3000
event - compiled successfully
event - build page: /
wait  - compiling...
event - compiled successfully
event - build page: /next/dist/pages/_error
wait  - compiling...
event - compiled successfully

Verificar salida

Abra localhost: 3000 en un navegador y verá el siguiente resultado.