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

app = FastAPI()

security = HTTPBasic()


@app.get("/users/me")
def read_current_user(credentials: HTTPBasicCredentials = Depends(security)):

from fastapi import Depends, FastAPI

from .dependencies import get_query_token, get_token_header
from .internal import admin
from .routers import items, users

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


app.include_router(users.router)
app.include_router(items.router)
app.include_router(
    admin.router,
    prefix="/admin",
    tags=["admin"],
    dependencies=[Depends(get_token_header)],

from fastapi import Depends, FastAPI

app = FastAPI()


fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]


class CommonQueryParams:
    def __init__(self, q: str | None = None, skip: int = 0, limit: int = 100):
        self.q = q
        self.skip = skip
        self.limit = limit


@app.get("/items/")
async def read_items(commons=Depends(CommonQueryParams)):
    response = {}
    if commons.q:

    def get_user_items(
        user_me: Annotated[dict, Depends(get_user_me)],
    ):
        call_counts["get_user_items"] += 1
        return {
            "user_items": f"user_items_{call_counts['get_user_items']}",
            "user_me": user_me,
        }

    app = FastAPI()

    @app.get("/")
    def path_operation(
        user_me: Annotated[dict, Depends(get_user_me)],

from fastapi import BackgroundTasks, Depends, FastAPI

app = FastAPI()


def write_log(message: str):
    with open("log.txt", mode="a") as log:
        log.write(message)


def get_query(background_tasks: BackgroundTasks, q: str | None = None):
    if q:
        message = f"found query: {q}\n"
        background_tasks.add_task(write_log, message)
    return q


@app.post("/send-notification/{email}")

from typing import TYPE_CHECKING, Annotated

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

from .utils import needs_py314

if TYPE_CHECKING:  # pragma: no cover

    class DummyUser: ...


@needs_py314
def test_stringified_annotation():
    # python3.14: Use forward reference without "from __future__ import annotations"
    async def get_current_user() -> DummyUser | None:
        return None

Хоча ви використовуєте `Depends` у параметрах вашої функції так само, як `Body`, `Query` тощо, `Depends` працює трохи інакше.

Ви передаєте в `Depends` лише один параметр.

Цей параметр має бути чимось на кшталт функції.

Ви її не викликаєте безпосередньо (не додавайте дужки в кінці), ви просто передаєте її як параметр у `Depends()`.

І ця функція приймає параметри так само, як і *функції операцій шляху*.

/// tip | Порада

@app.get("/items/", dependencies=[Depends(verify_token), Depends(verify_key)])
async def read_items():

Although you use `Depends` in the parameters of your function the same way you use `Body`, `Query`, etc, `Depends` works a bit differently.

You only give `Depends` a single parameter.

This parameter must be something like a function.

You **don't call it** directly (don't add the parenthesis at the end), you just pass it as a parameter to `Depends()`.

And that function takes parameters in the same way that *path operation functions* do.

@app.post("/with-duplicates")
async def with_duplicates(item: Item, item2: Item = Depends(duplicate_dependency)):
    return [item, item2]


@app.post("/no-duplicates")
async def no_duplicates(item: Item, item2: Item = Depends(dependency)):
    return [item, item2]


@app.post("/with-duplicates-sub")
async def no_duplicates_sub(
    item: Item, sub_items: list[Item] = Depends(sub_duplicate_dependency)
):
    return [item, sub_items]