If you have an older version, you would get errors when trying to use `Annotated`.

Make sure you [Upgrade the FastAPI version](../../deployment/versions.md#upgrading-the-fastapi-versions){.internal-link target=_blank} to at least 0.95.1 before using `Annotated`.

///

### Import `Depends`

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[3] *}

### Declare the dependency, in the "dependant"

```

## Instalando manipuladores de exceções customizados

Você pode adicionar manipuladores de exceção customizados com <a href="https://www.starlette.io/exceptions/" class="external-link" target="_blank">a mesma seção de utilidade de exceções presentes no Starlette</a>

Digamos que você tenha uma exceção customizada `UnicornException` que você (ou uma biblioteca que você use) precise lançar (`raise`).

# 📇

🔬 🇸🇲 📇 🎦 **FastAPI** 🈸 🏃‍♂ 🔽 Uvicorn <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">1️⃣ ⏩ 🐍 🛠️ 💪</a>, 🕴 🔛 💃 &amp; Uvicorn 👫 (⚙️ 🔘 FastAPI). (*)

✋️ 🕐❔ ✅ 📇 &amp; 🔺 👆 🔜 ✔️ 📄 🤯.

## 📇 &amp; 🚅

🕐❔ 👆 ✅ 📇, ⚫️ ⚠ 👀 📚 🧰 🎏 🆎 🔬 🌓.

🎯, 👀 Uvicorn, 💃 &amp; FastAPI 🔬 👯‍♂️ (👪 📚 🎏 🧰).

你可以用作 TLS 终止代理的一些选项包括：

* Traefik（也可以处理证书更新）
* Caddy（也可以处理证书更新）
* Nginx
* HAProxy

## Let's Encrypt

在 Let's Encrypt 之前，这些 **HTTPS 证书** 由受信任的第三方出售。

过去，获得这些证书的过程非常繁琐，需要大量的文书工作，而且证书非常昂贵。

但随后 **<a href="https://letsencrypt.org/" class="external-link" target="_blank">Let's Encrypt</a>** 创建了。

///

/// info | "Информация"

Вы также можете использовать:

* `response_model_exclude_defaults=True`
* `response_model_exclude_none=True`

Но при просмотре и сравнении замеров производительности следует иметь в виду нижеописанное.

```

因为使用了 `StaticFiles`， **FastAPI** 应用会自动提供位于 URL `/static/styles.css`的 CSS 文件。

## 更多说明

* <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#responsesObject" class="external-link" target="_blank">OpenAPI Responses Object</a>, enthält das `Response Object`.

* <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#responses-object" class="external-link" target="_blank">OpenAPI Responses Object</a>, it includes the `Response Object`.

Si vous avez une version plus ancienne, vous obtiendrez des erreurs en essayant d'utiliser `Annotated`.

Assurez-vous de [Mettre à jour la version de FastAPI](../deployment/versions.md#upgrading-the-fastapi-versions){.internal-link target=_blank} à la version 0.95.1 à minima avant d'utiliser `Annotated`.

///

## Déclarer des métadonnées

Vous pouvez déclarer les mêmes paramètres que pour `Query`.