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docs_src/bigger_applications/app_an_py310/routers/users.py

router = APIRouter()


@router.get("/users/", tags=["users"])
async def read_users():
    return [{"username": "Rick"}, {"username": "Morty"}]


@router.get("/users/me", tags=["users"])
async def read_user_me():
    return {"username": "fakecurrentuser"}


@router.get("/users/{username}", tags=["users"])
async def read_user(username: str):

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Thu Feb 12 13:19:43 GMT 2026

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github.com/tiangolo/fastapi

docs_src/dependencies/tutorial001_02_an_py310.py

from fastapi import Depends, FastAPI

app = FastAPI()


async def common_parameters(q: str | None = None, skip: int = 0, limit: int = 100):
    return {"q": q, "skip": skip, "limit": limit}


CommonsDep = Annotated[dict, Depends(common_parameters)]


@app.get("/items/")
async def read_items(commons: CommonsDep):
    return commons


@app.get("/users/")
async def read_users(commons: CommonsDep):

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Sat Mar 18 12:29:59 GMT 2023

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github.com/tiangolo/fastapi

tests/test_security_oauth2_authorization_code_bearer_scopes_openapi.py

)


async def get_token(token: Annotated[str, Depends(oauth2_scheme)]) -> str:
    return token


app = FastAPI(dependencies=[Depends(get_token)])


@app.get("/")
async def root():
    return {"message": "Hello World"}


@app.get(
    "/with-oauth2-scheme",
    dependencies=[Security(oauth2_scheme, scopes=["read", "write"])],
)
async def read_with_oauth2_scheme():

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Tue Feb 17 09:59:14 GMT 2026

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github.com/tiangolo/fastapi

docs_src/dependencies/tutorial012_an_py310.py

from typing import Annotated

from fastapi import Depends, FastAPI, Header, HTTPException


async def verify_token(x_token: Annotated[str, Header()]):
    if x_token != "fake-super-secret-token":
        raise HTTPException(status_code=400, detail="X-Token header invalid")


async def verify_key(x_key: Annotated[str, Header()]):
    if x_key != "fake-super-secret-key":
        raise HTTPException(status_code=400, detail="X-Key header invalid")

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Thu Feb 12 13:19:43 GMT 2026

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github.com/tiangolo/fastapi

docs_src/security/tutorial004_py310.py

    if user is None:
        raise credentials_exception
    return user


async def get_current_active_user(current_user: User = Depends(get_current_user)):
    if current_user.disabled:
        raise HTTPException(status_code=400, detail="Inactive user")
    return current_user


@app.post("/token")
async def login_for_access_token(
    form_data: OAuth2PasswordRequestForm = Depends(),
) -> Token:

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Thu Feb 12 18:10:35 GMT 2026

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github.com/tiangolo/fastapi

docs_src/custom_docs_ui/tutorial002_py310.py

        swagger_css_url="/static/swagger-ui.css",
    )


@app.get(app.swagger_ui_oauth2_redirect_url, include_in_schema=False)
async def swagger_ui_redirect():
    return get_swagger_ui_oauth2_redirect_html()


@app.get("/redoc", include_in_schema=False)
async def redoc_html():
    return get_redoc_html(
        openapi_url=app.openapi_url,
        title=app.title + " - ReDoc",

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Thu Feb 12 13:19:43 GMT 2026

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github.com/tiangolo/fastapi

docs_src/security/tutorial005_an_py310.py

            )
    return user


async def get_current_active_user(
    current_user: Annotated[User, Security(get_current_user, scopes=["me"])],
):
    if current_user.disabled:
        raise HTTPException(status_code=400, detail="Inactive user")
    return current_user


@app.post("/token")
async def login_for_access_token(

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Thu Feb 12 18:10:35 GMT 2026

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github.com/tiangolo/fastapi

docs_src/websockets_/tutorial003_py310.py

    async def broadcast(self, message: str):
        for connection in self.active_connections:
            await connection.send_text(message)


manager = ConnectionManager()


@app.get("/")
async def get():
    return HTMLResponse(html)


@app.websocket("/ws/{client_id}")
async def websocket_endpoint(websocket: WebSocket, client_id: int):
    await manager.connect(websocket)
    try:
        while True:

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Fri Feb 27 12:34:37 GMT 2026

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github.com/tiangolo/fastapi

docs_src/request_files/tutorial002_py310.py

app = FastAPI()


@app.post("/files/")
async def create_files(files: list[bytes] = File()):
    return {"file_sizes": [len(file) for file in files]}


@app.post("/uploadfiles/")
async def create_upload_files(files: list[UploadFile]):
    return {"filenames": [file.filename for file in files]}


@app.get("/")
async def main():
    content = """
<body>

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Thu Feb 12 13:19:43 GMT 2026

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github.com/tiangolo/fastapi

docs_src/custom_request_and_route/tutorial001_py310.py

        async def custom_route_handler(request: Request) -> Response:
            request = GzipRequest(request.scope, request.receive)
            return await original_route_handler(request)

        return custom_route_handler


app = FastAPI()
app.router.route_class = GzipRoute


@app.post("/sum")
async def sum_numbers(numbers: list[int] = Body()):

Created: Sun Apr 05 07:19:11 GMT 2026

- Last Modified: Wed Dec 10 08:55:32 GMT 2025

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