C'était l'un des premiers frameworks Python extrêmement rapides basés sur `asyncio`. Il a été conçu pour être très similaire à Flask.

/// note | Détails techniques

Il utilisait <a href="https://github.com/MagicStack/uvloop" class="external-link" target="_blank">`uvloop`</a> au lieu du système par défaut de Python `asyncio`. C'est ce qui l'a rendu si rapide.

---

También puedes usar el parámetro `status_code` combinado con el parámetro `response_class`:

{* ../../docs_src/custom_response/tutorial006c.py hl[2,7,9] *}

### `StreamingResponse`

Toma un generador `async` o un generador/iterador normal y transmite el cuerpo del response.

{* ../../docs_src/custom_response/tutorial007.py hl[2,14] *}

#### Usando `StreamingResponse` con objetos similares a archivos

You can also use the `status_code` parameter combined with the `response_class` parameter:

{* ../../docs_src/custom_response/tutorial006c.py hl[2,7,9] *}

### `StreamingResponse` { #streamingresponse }

Takes an async generator or a normal generator/iterator and streams the response body.

{* ../../docs_src/custom_response/tutorial007.py hl[2,14] *}

///

### <a href="https://sanic.readthedocs.io/en/latest/" class="external-link" target="_blank">🤣</a>

⚫️ 🕐 🥇 📶 ⏩ 🐍 🛠️ ⚓️ 🔛 `asyncio`. ⚫️ ⚒ 📶 🎏 🏺.

/// note | 📡 ℹ

⚫️ ⚙️ <a href="https://github.com/MagicStack/uvloop" class="external-link" target="_blank">`uvloop`</a> ↩️ 🔢 🐍 `asyncio` ➰. 👈 ⚫️❔ ⚒ ⚫️ ⏩.

⚫️ 🎯 😮 Uvicorn &amp; 💃, 👈 ⏳ ⏩ 🌘 🤣 📂 📇.

///

/// check | 😮 **FastAPI**

🔎 🌌 ✔️ 😜 🎭.

  stars: 1150
  owner_login: wassim249
  owner_html_url: https://github.com/wassim249
- name: fastapi-alembic-sqlmodel-async
  html_url: https://github.com/jonra1993/fastapi-alembic-sqlmodel-async
  stars: 1145
  owner_login: jonra1993
  owner_html_url: https://github.com/jonra1993
- name: odmantic
  html_url: https://github.com/art049/odmantic
  stars: 1130

The code following the `yield` statement is executed after creating the response but before sending it:

{* ../../docs_src/dependencies/tutorial007.py hl[5:6] *}

/// tip

You can use `async` or regular functions.

**FastAPI** will do the right thing with each, the same as with normal dependencies.

///

## A dependency with `yield` and `try` { #a-dependency-with-yield-and-try }

El código posterior a la declaración `yield` se ejecuta después de crear el response pero antes de enviarla:

{* ../../docs_src/dependencies/tutorial007.py hl[5:6] *}

/// tip | Consejo

Puedes usar funciones `async` o regulares.

**FastAPI** hará lo correcto con cada una, igual que con dependencias normales.

///

## Una dependencia con `yield` y `try`

* full stack: full stack (do not translate to "pila completa")
* full-stack: full-stack (do not translate to "de pila completa")
* stack: stack (do not translate to "pila")
* loop (as in async loop): loop (do not translate to "bucle" or "ciclo")
* hard dependencies: dependencias obligatorias (do not translate to "dependencias duras")
* locking: locking (do not translate to "bloqueo")

	scanStateStarted
	scanStateSuccess
	scanStateError

	// Time in which the initiator of a scan must have reported back.
	metacacheMaxRunningAge = time.Minute

	// Max time between client calls before dropping an async cache listing.
	metacacheMaxClientWait = 3 * time.Minute

	// metacacheBlockSize is the number of file/directory entries to have in each block.
	metacacheBlockSize = 5000

O código após o `yield` é executado após a resposta ser entregue:

{* ../../docs_src/dependencies/tutorial007.py hl[5:6] *}

/// tip | Dica

Você pode usar funções assíncronas (`async`) ou funções comuns.

O **FastAPI** saberá o que fazer com cada uma, da mesma forma que as dependências comuns.

///

## Uma dependência com `yield` e `try`