De esta manera, puedes crear un token con una expiración de, digamos, 1 semana. Y luego, cuando el usuario regresa al día siguiente con el token, sabes que el usuario todavía está registrado en tu sistema.

Dessa forma, você pode criar um token com um prazo de expiração, digamos, de 1 semana. E então, quando o usuário voltar no dia seguinte com o token, você sabe que ele ainda está logado no seu sistema.

---

FastAPI adalah *framework* *web* moderen, cepat (performa-tinggi) untuk membangun API dengan Python berdasarkan tipe petunjuk Python.

Fitur utama FastAPI:

* **Cepat**: Performa sangat tinggi, setara **NodeJS** dan **Go** (berkat Starlette dan Pydantic). [Salah satu *framework* Python tercepat yang ada](#performa).
* **Cepat untuk coding**: Meningkatkan kecepatan pengembangan fitur dari 200% sampai 300%. *

	</licenses>
	<organization>
		<name>CodeLibs Project</name>
		<url>https://www.codelibs.org/</url>
	</organization>
	<developers>
		<developer>
			<id>shinsuke</id>
			<name>Shinsuke Sugaya</name>
			<email>shinsuke.sugaya@codelibs.co</email>
			<organization>CodeLibs Inc.</organization>
			<organizationUrl>https://codelibs.co</organizationUrl>
		</developer>
	</developers>
	<scm>

Anda juga bisa menggunakan OpenAPI untuk membuat kode secara otomatis, untuk klien yang menggunakan API anda. Sebagai contoh, frontend, aplikasi mobile atau IoT.

## Ringkasan, secara bertahap

### Langkah 1: impor `FastAPI`

{* ../../docs_src/first_steps/tutorial001.py hl[1] *}

Para este ejemplo simple, vamos a ser completamente inseguros y devolver el mismo `username` como el token.

/// tip | Consejo

En el próximo capítulo, verás una implementación segura real, con hashing de passwords y tokens <abbr title="JSON Web Tokens">JWT</abbr>.

Pero por ahora, enfoquémonos en los detalles específicos que necesitamos.

///

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