* [Daphne](https://github.com/django/daphne): Django Channels için geliştirilmiş ASGI server.
* [Granian](https://github.com/emmett-framework/granian): Python uygulamaları için bir Rust HTTP server.
* [NGINX Unit](https://unit.nginx.org/howto/fastapi/): NGINX Unit, hafif ve çok yönlü bir web uygulaması runtime'ıdır.

## Sunucu Makinesi ve Sunucu Programı { #server-machine-and-server-program }

如果你把回傳型別宣告為 `AsyncIterable[Item]`，FastAPI 會用它來透過 Pydantic 進行**驗證**、**文件化**與**序列化**。

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip

因為 Pydantic 會在 **Rust** 端進行序列化，如果你有宣告回傳型別，效能會比未宣告時高很多。

///

### 非 async 的路徑操作函式 { #non-async-path-operation-functions }

你也可以使用一般的 `def` 函式（沒有 `async`），並同樣使用 `yield`。

FastAPI 會確保正確執行，不會阻塞事件迴圈。

* [Daphne](https://github.com/django/daphne): servidor ASGI construído para Django Channels.
* [Granian](https://github.com/emmett-framework/granian): um servidor HTTP Rust para aplicações Python.
* [NGINX Unit](https://unit.nginx.org/howto/fastapi/): NGINX Unit é um runtime de aplicação web leve e versátil.

## Máquina Servidora e Programa Servidor { #server-machine-and-server-program }

Se você declarar o tipo de retorno, o FastAPI o usará para **validar** os dados, **documentá-los** no OpenAPI, **filtrá-los** e **serializá-los** usando o Pydantic.

/// tip | Dica

Como o Pydantic fará a serialização no lado em **Rust**, você terá uma **performance** muito maior do que se não declarar um tipo de retorno.

///

### Funções de operação de rota não assíncronas { #non-async-path-operation-functions }

```

**Important**: Return types or response models are what filter data ensuring no sensitive information is exposed. And they are used to serialize data with Pydantic (in Rust), this is the main idea that can increase response performance.

The return type doesn't have to be a Pydantic model, it could be a different type, like a list of integers, or a dict, etc.

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip | Astuce

Comme Pydantic le sérialisera du côté **Rust**, vous obtiendrez une **performance** bien supérieure que si vous ne déclarez pas de type de retour.

///

### Fonctions de chemin d'accès non async { #non-async-path-operation-functions }

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip | Порада

Оскільки Pydantic серіалізує це на боці **Rust**, ви отримаєте значно вищу **продуктивність**, ніж якби не оголошували тип повернення.

///

### Не-async *функції операцій шляху* { #non-async-path-operation-functions }

* [Daphne](https://github.com/django/daphne): the ASGI server built for Django Channels.
* [Granian](https://github.com/emmett-framework/granian): A Rust HTTP server for Python applications.
* [NGINX Unit](https://unit.nginx.org/howto/fastapi/): NGINX Unit is a lightweight and versatile web application runtime.

* [Daphne](https://github.com/django/daphne): el servidor ASGI construido para Django Channels.
* [Granian](https://github.com/emmett-framework/granian): Un servidor HTTP Rust para aplicaciones en Python.
* [NGINX Unit](https://unit.nginx.org/howto/fastapi/): NGINX Unit es un runtime para aplicaciones web ligero y versátil.

## Máquina Servidor y Programa Servidor { #server-machine-and-server-program }

/// tip | Tipp

Da Pydantic es auf der **Rust**-Seite serialisiert, erhalten Sie eine deutlich höhere **Leistung** als wenn Sie keinen Rückgabetyp deklarieren.

///

### Nicht-async *Pfadoperation-Funktionen* { #non-async-path-operation-functions }