from fastapi import FastAPI, Security
from fastapi.security import OAuth2AuthorizationCodeBearer
from fastapi.testclient import TestClient
from inline_snapshot import snapshot

app = FastAPI()

oauth2_scheme = OAuth2AuthorizationCodeBearer(
    authorizationUrl="authorize", tokenUrl="token", auto_error=True
)


@app.get("/items/")
async def read_items(token: str | None = Security(oauth2_scheme)):
    return {"token": token}

當以 `--forwarded-allow-ips` 設定好 FastAPI CLI 後，它會信任並使用這些標頭，例如在重新導向時產生正確的 URL。

## 具有移除路徑前綴的代理 { #proxy-with-a-stripped-path-prefix }

你可能會有一個會為你的應用加入路徑前綴的代理。

在這些情況下，你可以使用 `root_path` 來設定你的應用。

`root_path` 是 ASGI 規格（FastAPI 透過 Starlette 所遵循的規格）所提供的機制。

`root_path` 用來處理這些特定情境。

在掛載子應用時，內部也會使用它。

這種「具有移除路徑前綴的代理」情況，代表你在程式碼中宣告了 `/app` 的路徑，但你在上面又加了一層（代理），把你的 FastAPI 應用放在像是 `/api/v1` 這樣的路徑底下。

from typing import Annotated

from fastapi import Depends, FastAPI
from fastapi.security import HTTPBasic, HTTPBasicCredentials

app = FastAPI()

security = HTTPBasic()


@app.get("/users/me")
def read_current_user(credentials: Annotated[HTTPBasicCredentials, Depends(security)]):

from fastapi import FastAPI
from fastapi.responses import JSONResponse

app = FastAPI()


@app.get("/headers/")
def get_headers():
    content = {"message": "Hello World"}
    headers = {"X-Cat-Dog": "alone in the world", "Content-Language": "en-US"}

## Full Stack FastAPI Template - Technology Stack and Features { #full-stack-fastapi-template-technology-stack-and-features }

- ⚡ [**FastAPI**](https://fastapi.tiangolo.com) for the Python backend API.
  - 🧰 [SQLModel](https://sqlmodel.tiangolo.com) for the Python SQL database interactions (ORM).
  - 🔍 [Pydantic](https://docs.pydantic.dev), used by FastAPI, for the data validation and settings management.

"""
Regression test: preserve order when using list[bytes] + File()
See https://github.com/fastapi/fastapi/discussions/14811
Fixed in PR: https://github.com/fastapi/fastapi/pull/14884
"""

from typing import Annotated

import anyio
import pytest
from fastapi import FastAPI, File
from fastapi.testclient import TestClient
from starlette.datastructures import UploadFile as StarletteUploadFile


def test_list_bytes_file_preserves_order(

# Full Stack FastAPI テンプレート { #full-stack-fastapi-template }

テンプレートは通常、特定のセットアップが含まれていますが、柔軟でカスタマイズできるように設計されています。これにより、プロジェクトの要件に合わせて変更・適応でき、優れた出発点になります。🏁

このテンプレートを使って開始できます。初期セットアップ、セキュリティ、データベース、いくつかのAPIエンドポイントがすでに用意されています。

GitHubリポジトリ: [Full Stack FastAPI Template](https://github.com/tiangolo/full-stack-fastapi-template)

## Full Stack FastAPI テンプレート - 技術スタックと機能 { #full-stack-fastapi-template-technology-stack-and-features }

from fastapi import FastAPI, Response
from fastapi.responses import RedirectResponse

app = FastAPI()


@app.get("/portal")
async def get_portal(teleport: bool = False) -> Response | dict:
    if teleport:
        return RedirectResponse(url="https://www.youtube.com/watch?v=dQw4w9WgXcQ")

from base64 import b64encode

from fastapi import FastAPI, Security
from fastapi.security import HTTPBasic, HTTPBasicCredentials
from fastapi.testclient import TestClient
from inline_snapshot import snapshot

app = FastAPI()

security = HTTPBasic(auto_error=False)


@app.get("/users/me")
def read_current_user(credentials: HTTPBasicCredentials | None = Security(security)):
    if credentials is None:

import warnings

from fastapi import FastAPI
from fastapi.exceptions import FastAPIDeprecationWarning
from fastapi.responses import ORJSONResponse
from fastapi.testclient import TestClient
from sqlalchemy.sql.elements import quoted_name

with warnings.catch_warnings():
    warnings.simplefilter("ignore", FastAPIDeprecationWarning)
    app = FastAPI(default_response_class=ORJSONResponse)


@app.get("/orjson_non_str_keys")