# Hakkında

И если вы объявили `response_model`, он всё равно будет использоваться для фильтрации и преобразования возвращаемого объекта.

**FastAPI** будет использовать этот *временный* ответ для извлечения кода состояния (а также cookies и headers) и поместит их в финальный ответ, который содержит возвращаемое вами значение, отфильтрованное любым `response_model`.

## Dependencias Globales

Und wenn Sie ein `response_model` deklariert haben, wird es weiterhin zum Filtern und Konvertieren des von Ihnen zurückgegebenen Objekts verwendet.

/// tip | Tipp

Sie erinnern sich vielleicht, dass Requestbodys ebenfalls mit Pydantic-Modellen deklariert werden.

Weil Sie `Depends` verwenden, wird **FastAPI** hier aber nicht verwirrt.

///

/// check

In diesem Fall können Sie diese Funktion in **FastAPI** mit dem Parameter `separate_input_output_schemas=False` deaktivieren.

/// info

Unterstützung für `separate_input_output_schemas` wurde in FastAPI `0.102.0` hinzugefügt. 🤓

///

{* ../../docs_src/separate_openapi_schemas/tutorial002_py310.py hl[10] *}

# Middleware { #middleware }

You can add middleware to **FastAPI** applications.

A "middleware" is a function that works with every **request** before it is processed by any specific *path operation*. And also with every **response** before returning it.

* It takes each **request** that comes to your application.
* It can then do something to that **request** or run any needed code.

This will help us inside of the function with all the completion and type checks.

/// tip

You might remember that request bodies are also declared with Pydantic models.

Here **FastAPI** won't get confused because you are using `Depends`.

///

/// check

The way this dependency system is designed allows us to have different dependencies (different "dependables") that all return a `User` model.

A forma como esse sistema de dependências foi projetado nos permite ter diferentes dependências (diferentes "dependables") que retornam...

execução no servidor (máquina, host, etc.) e **gerenciar todas as partes HTTPS**: **recebendo as requisições encriptadas**, enviando as **solicitações HTTP descriptografadas** para o aplicativo HTTP real em execução no mesmo servidor (a aplicação **FastAPI**, neste caso), pegue a **resposta HTTP** do aplicativo, **criptografe-a** usando o **certificado HTTPS** apropriado e envie-a de volta ao cliente usando **HTTPS**. Este servidor é frequentemente chamado de **<a href="https://en.wikipedia.org/wik...