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docs_src/body_multiple_params/tutorial004_py39.py

from typing import Union

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


class User(BaseModel):
    username: str
    full_name: Union[str, None] = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,

Registered: Sun Dec 28 07:19:09 UTC 2025

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github.com/tiangolo/fastapi

tests/test_tutorial/test_websockets/test_tutorial001.py

import pytest
from fastapi.testclient import TestClient
from fastapi.websockets import WebSocketDisconnect

from docs_src.websockets.tutorial001_py39 import app

client = TestClient(app)


def test_main():
    response = client.get("/")
    assert response.status_code == 200, response.text
    assert b"<!DOCTYPE html>" in response.content


def test_websocket():
    with pytest.raises(WebSocketDisconnect):

Registered: Sun Dec 28 07:19:09 UTC 2025

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github.com/tiangolo/fastapi

tests/test_security_http_base_description.py

from fastapi import FastAPI, Security
from fastapi.security.http import HTTPAuthorizationCredentials, HTTPBase
from fastapi.testclient import TestClient

app = FastAPI()

security = HTTPBase(scheme="Other", description="Other Security Scheme")


@app.get("/users/me")
def read_current_user(credentials: HTTPAuthorizationCredentials = Security(security)):
    return {"scheme": credentials.scheme, "credentials": credentials.credentials}

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github.com/tiangolo/fastapi

tests/test_tuples.py

from fastapi import FastAPI, Form
from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()


class ItemGroup(BaseModel):
    items: list[tuple[str, str]]


class Coordinate(BaseModel):
    x: float
    y: float


@app.post("/model-with-tuple/")
def post_model_with_tuple(item_group: ItemGroup):
    return item_group


@app.post("/tuple-of-models/")

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github.com/tiangolo/fastapi

docs_src/security/tutorial002_py39.py

from typing import Union

from fastapi import Depends, FastAPI
from fastapi.security import OAuth2PasswordBearer
from pydantic import BaseModel

app = FastAPI()

oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")


class User(BaseModel):
    username: str
    email: Union[str, None] = None
    full_name: Union[str, None] = None
    disabled: Union[bool, None] = None


def fake_decode_token(token):
    return User(

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github.com/tiangolo/fastapi

docs_src/pydantic_v1_in_v2/tutorial003_an_py39.py

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel as BaseModelV2
from pydantic.v1 import BaseModel


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    size: float


class ItemV2(BaseModelV2):
    name: str
    description: Union[str, None] = None
    size: float


app = FastAPI()


@app.post("/items/", response_model=ItemV2)

Registered: Sun Dec 28 07:19:09 UTC 2025

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github.com/tiangolo/fastapi

tests/test_callable_endpoint.py

from functools import partial
from typing import Optional

from fastapi import FastAPI
from fastapi.testclient import TestClient


def main(some_arg, q: Optional[str] = None):
    return {"some_arg": some_arg, "q": q}


endpoint = partial(main, "foo")

app = FastAPI()

app.get("/")(endpoint)


client = TestClient(app)


def test_partial():
    response = client.get("/?q=bar")
    data = response.json()

Registered: Sun Dec 28 07:19:09 UTC 2025

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github.com/tiangolo/fastapi

tests/test_dependency_after_yield_websockets.py

from collections.abc import Generator
from contextlib import contextmanager
from typing import Annotated, Any

import pytest
from fastapi import Depends, FastAPI, WebSocket
from fastapi.testclient import TestClient


class Session:
    def __init__(self) -> None:
        self.data = ["foo", "bar", "baz"]
        self.open = True

    def __iter__(self) -> Generator[str, None, None]:
        for item in self.data:

Registered: Sun Dec 28 07:19:09 UTC 2025

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github.com/google/guava

android/guava/src/com/google/common/collect/Table.java

   * putAll()}.
   *
   * @return a map view from each row key to a secondary map from column keys to values
   */
  Map<R, Map<C, V>> rowMap();

  /**
   * Returns a view that associates each column key with the corresponding map from row keys to
   * values. Changes to the returned map will update this table. The returned map does not support

Registered: Fri Dec 26 12:43:10 UTC 2025

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github.com/tiangolo/fastapi

fastapi/background.py

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

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