Durante o desenvolvimento, eu também contribuí com o <a href="https://www.starlette.dev/" class="external-link" target="_blank">**Starlette**</a>, outro requisito chave.

## Desenvolvimento { #development }

## Requisitos { #requirements }

FastAPI se apoya en hombros de gigantes:

* <a href="https://www.starlette.dev/" class="external-link" target="_blank">Starlette</a> para las partes web.
* <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> para las partes de datos.

## Instalación { #installation }

**Typer** é o irmão menor do FastAPI. E seu propósito é ser o **FastAPI das _CLIs_**. ⌨️ 🚀

## Requisitos { #requirements }

FastAPI está nos ombros de gigantes:

* <a href="https://www.starlette.dev/" class="external-link" target="_blank">Starlette</a> para as partes web.
* <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> para a parte de dados.

## Instalação { #installation }

我甚至为它做了不少贡献，让它完美兼容了 JSON Schema，支持多种方式定义约束声明，并基于多个编辑器，改进了它对编辑器支持（类型检查、自动补全）。

在开发期间，我还为 <a href="https://www.starlette.dev/" class="external-link" target="_blank">**Starlette**</a> 做了不少贡献，这是另一个关键需求项。

## 开发

当我启动 **FastAPI** 开发的时候，绝大多数部件都已经就位，设计已经定义，需求项和工具也已经准备就绪，相关标准与规范的知识储备也非常清晰而新鲜。

## 未来

至此，**FastAPI** 及其理念已经为很多人所用。

对于很多用例，它比以前很多备选方案都更适用。

Pendant le développement, j'ai également contribué à <a href="https://www.starlette.dev/" class="external-link" target="_blank">**Starlette**</a>, l'autre exigence clé.

## Développement

from collections.abc import Sequence
from typing import Annotated, Any, Optional, TypedDict, Union

from annotated_doc import Doc
from pydantic import BaseModel, create_model
from starlette.exceptions import HTTPException as StarletteHTTPException
from starlette.exceptions import WebSocketException as StarletteWebSocketException


class EndpointContext(TypedDict, total=False):
    function: str
    path: str
    file: str
    line: int

/// info | Información

Puedes leer más sobre los manejadores `lifespan` de Starlette en <a href="https://www.starlette.dev/lifespan/" class="external-link" target="_blank">la documentación de `Lifespan` de Starlette</a>.

Incluyendo cómo manejar el estado de lifespan que puede ser usado en otras áreas de tu código.

///

## Sub Aplicaciones { #sub-applications }

`FastAPI`, API'niz için tüm işlevselliği sağlayan bir Python sınıfıdır.

/// note | Teknik Detaylar

`FastAPI` doğrudan `Starlette`'i miras alan bir sınıftır.

<a href="https://www.starlette.dev/" class="external-link" target="_blank">Starlette</a>'in tüm işlevselliğini `FastAPI` ile de kullanabilirsiniz.

///

### Adım 2: Bir `FastAPI` "Örneği" Oluşturalım

from typing import Annotated, Any, Callable

from annotated_doc import Doc
from starlette.background import BackgroundTasks as StarletteBackgroundTasks
from typing_extensions import ParamSpec

P = ParamSpec("P")


class BackgroundTasks(StarletteBackgroundTasks):
    """
    A collection of background tasks that will be called after a response has been
    sent to the client.

    Read more about it in the

    "httpx >=0.23.0,<1.0.0",
    # For templates
    "jinja2 >=3.1.5",
    # For forms and file uploads
    "python-multipart >=0.0.18",
    # For Starlette's SessionMiddleware, not commonly used with FastAPI
    "itsdangerous >=1.1.0",
    # For Starlette's schema generation, would not be used with FastAPI
    "pyyaml >=5.3.1",
    # For UJSONResponse
    "ujson >=4.0.1,!=4.0.2,!=4.1.0,!=4.2.0,!=4.3.0,!=5.0.0,!=5.1.0",