user = User(username=oauth_header)
    return user


@app.get("/users/me")
def read_current_user(current_user: Optional[User] = Depends(get_current_user)):
    if current_user is None:
        return {"msg": "Create an account first"}
    return current_user


client = TestClient(app)


def test_security_oauth2():
    response = client.get("/users/me", headers={"Authorization": "Bearer footokenbar"})

app = FastAPI()


@app.get("/catching")
def catching(d: Annotated[str, Depends(catching_dep)]) -> Any:
    raise CustomError("Simulated error during streaming")


@app.get("/broken")
def broken(d: Annotated[str, Depends(broken_dep)]) -> Any:
    return {"message": "all good?"}


client = TestClient(app)


def test_catching():
    response = client.get("/catching")
    assert response.status_code == 418

    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/": {
                    "get": {
                        "summary": "Get People",

    y: str = "y"
    z: str = "z"


@app.get("/", response_model=Model, response_model_exclude_unset=True)
def get_root() -> ModelSubclass:
    return ModelSubclass(sub={}, y=1, z=0)


@app.get(
    "/exclude_unset", response_model=ModelDefaults, response_model_exclude_unset=True
)
def get_exclude_unset() -> ModelDefaults:
    return ModelDefaults(x=None, y="y")


@app.get(
    "/exclude_defaults",

Ось "**функція операції шляху**":

* **шлях**: це `/`.
* **операція**: це `get`.
* **функція**: це функція, яка знаходиться нижче "декоратора" (нижче `@app.get("/")`).

{* ../../docs_src/first_steps/tutorial001.py hl[7] *}

Це звичайна функція Python.

FastAPI викликатиме її щоразу, коли отримає запит до URL із шляхом "/", використовуючи операцію `GET`.

У даному випадку це асинхронна функція.

---

      @Override
      public int size() {
        return axes.size();
      }

      @Override
      public E get(int axis) {
        checkElementIndex(axis, size());
        int axisIndex = getAxisIndexForProductIndex(index, axis);
        return axes.get(axis).get(axisIndex);
      }

      @Override
      boolean isPartialView() {
        return true;
      }

async def create_user(user: UserCreate):
    return user


@app.get("/pets/{pet_id}", response_model=PetOut)
async def read_pet(pet_id: int):
    user = UserDB(
        email="******@****.***",
        hashed_password="secrethashed",
    )
    pet = PetDB(name="Nibbler", owner=user)
    return pet


@app.get("/pets/", response_model=list[PetOut])
async def read_pets():
    user = UserDB(

    return token


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


@app.get("/admin", dependencies=[Security(get_token, scopes=["read", "write"])])
async def read_admin():
    return {"message": "Admin Access"}


client = TestClient(app)


def test_read_admin():
    response = client.get("/admin", headers={"Authorization": "Bearer faketoken"})
    assert response.status_code == 200, response.text

    return client


def test_no_token(client: TestClient):
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


def test_token(client: TestClient):
    response = client.get("/users/me", headers={"Authorization": "Bearer testtoken"})

    ],
)
def test_read_items(client: TestClient, path, expected_response):
    response = client.get(path)
    assert response.status_code == 200, response.text
    assert response.json() == expected_response


def test_read_items_non_int_item_id(client: TestClient):
    response = client.get("/items/invalid_id?q=somequery")
    assert response.status_code == 422, response.text
    assert response.json() == {