Fastapi - Code Search

docs/zh/docs/tutorial/handling-errors.md

    "size": "XL"
  }
}

```

### FastAPI `HTTPException` vs Starlette `HTTPException`

**FastAPI** 也提供了自有的 `HTTPException`。

**FastAPI** 的 `HTTPException` 继承自 Starlette 的 `HTTPException` 错误类。

它们之间的唯一区别是，**FastAPI** 的 `HTTPException` 可以在响应中添加响应头。

OAuth 2.0 等安全工具需要在内部调用这些响应头。

因此你可以继续像平常一样在代码中触发 **FastAPI** 的 `HTTPException` 。

但注册异常处理器时，应该注册到来自 Starlette 的 `HTTPException`。

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github.com/tiangolo/fastapi

docs_src/cors/tutorial001_py39.py

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

app = FastAPI()

origins = [
    "http://localhost.tiangolo.com",
    "https://localhost.tiangolo.com",
    "http://localhost",
    "http://localhost:8080",
]

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


@app.get("/")

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github.com/tiangolo/fastapi

docs/ko/docs/tutorial/index.md

</div>

코드를 작성하거나 복사, 편집할 때, 로컬 환경에서 실행하는 것을 **강력히 권장**합니다.

로컬 편집기에서 사용한다면, 모든 타입 검사와 자동완성 등 작성해야 하는 코드가 얼마나 적은지 보면서 FastAPI의 이점을 비로소 경험할 수 있습니다.


---

## FastAPI 설치

첫 번째 단계는 FastAPI를 설치하는 것입니다.

자습시에는 모든 선택적인 의존성 및 기능을 함께 설치하는 것을 추천합니다:

<div class="termy">

```console
$ pip install "fastapi[all]"

---> 100%
```

</div>

...이는 코드를 실행하는 서버로 사용할 수 있는 `uvicorn` 또한 포함하고 있습니다.

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github.com/tiangolo/fastapi

docs/es/docs/tutorial/body-multiple-params.md

Por ejemplo, ampliando el modelo anterior, podrías decidir que deseas tener otra clave `importance` en el mismo cuerpo, además de `item` y `user`.

Si lo declaras tal cual, debido a que es un valor singular, **FastAPI** asumirá que es un parámetro de query.

Pero puedes instruir a **FastAPI** para que lo trate como otra clave del cuerpo usando `Body`:

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github.com/tiangolo/fastapi

docs_src/custom_response/tutorial004_py39.py

from fastapi import FastAPI
from fastapi.responses import HTMLResponse

app = FastAPI()


def generate_html_response():
    html_content = """
    <html>
        <head>
            <title>Some HTML in here</title>
        </head>
        <body>
            <h1>Look ma! HTML!</h1>
        </body>
    </html>
    """
    return HTMLResponse(content=html_content, status_code=200)

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github.com/tiangolo/fastapi

docs_src/encoder/tutorial001_py310.py

from datetime import datetime

from fastapi import FastAPI
from fastapi.encoders import jsonable_encoder
from pydantic import BaseModel

fake_db = {}


class Item(BaseModel):
    title: str
    timestamp: datetime
    description: str | None = None


app = FastAPI()


@app.put("/items/{id}")
def update_item(id: str, item: Item):
    json_compatible_item_data = jsonable_encoder(item)

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github.com/tiangolo/fastapi

tests/test_return_none_stringified_annotations.py

import http

from fastapi import FastAPI
from fastapi.testclient import TestClient


def test_no_content():
    app = FastAPI()

    @app.get("/no-content", status_code=http.HTTPStatus.NO_CONTENT)
    def return_no_content() -> "None":
        return

    client = TestClient(app)
    response = client.get("/no-content")
    assert response.status_code == http.HTTPStatus.NO_CONTENT, response.text

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github.com/tiangolo/fastapi

tests/test_union_body_discriminator_annotated.py

# Ref: https://github.com/fastapi/fastapi/discussions/14495

from typing import Annotated, Union

import pytest
from fastapi import FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel


@pytest.fixture(name="client")
def client_fixture() -> TestClient:
    from fastapi import Body
    from pydantic import Discriminator, Tag

    class Cat(BaseModel):

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github.com/tiangolo/fastapi

docs_src/custom_request_and_route/tutorial002_py39.py

from typing import Callable

from fastapi import Body, FastAPI, HTTPException, Request, Response
from fastapi.exceptions import RequestValidationError
from fastapi.routing import APIRoute


class ValidationErrorLoggingRoute(APIRoute):
    def get_route_handler(self) -> Callable:
        original_route_handler = super().get_route_handler()

        async def custom_route_handler(request: Request) -> Response:
            try:

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github.com/tiangolo/fastapi

docs/ru/docs/how-to/migrate-from-pydantic-v1-to-pydantic-v2.md

Если у вас старое приложение FastAPI, возможно, вы используете Pydantic версии 1.

FastAPI поддерживает и Pydantic v1, и v2 начиная с версии 0.100.0.

Если у вас был установлен Pydantic v2, использовался он. Если вместо этого был установлен Pydantic v1 — использовался он.

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