return ",".join(map(str, sorted(query)))


@app.get("/query/list")
def get_query_list(device_ids: List[int] = Query()) -> List[int]:
    return device_ids


@app.get("/query/list-default")
def get_query_list_default(device_ids: List[int] = Query(default=[])) -> List[int]:

@app.post("/items/")
def create_item(item: Item):
    return item


@app.get("/items/")
def read_items() -> list[Item]:
    return [
        Item(
            name="Portal Gun",
            description="Device to travel through the multi-rick-verse",
        ),
        Item(name="Plumbus"),

        return item

    @app.get("/items/")
    def read_items() -> List[Item]:
        return [
            Item(
                name="Portal Gun",
                description="Device to travel through the multi-rick-verse",
                sub=SubItem(subname="subname"),
            ),
            Item(name="Plumbus"),
        ]

    client = TestClient(app)
    return client

    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [
        {
            "name": "Portal Gun",
            "description": "Device to travel through the multi-rick-verse",
        },
        {"name": "Plumbus", "description": None},
    ]


@needs_py310
@needs_pydanticv2
def test_openapi_schema(client: TestClient) -> None:

    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [
        {
            "name": "Portal Gun",
            "description": "Device to travel through the multi-rick-verse",
        },
        {"name": "Plumbus", "description": None},
    ]


@needs_pydanticv2
def test_openapi_schema(client: TestClient) -> None:

# Handling Errors

There are many situations in which you need to notify an error to a client that is using your API.

This client could be a browser with a frontend, a code from someone else, an IoT device, etc.

You could need to tell the client that:

* The client doesn't have enough privileges for that operation.
* The client doesn't have access to that resource.
* The item the client was trying to access doesn't exist.
* etc.

    assert response.headers["WWW-Authenticate"] == 'Bearer scope="me"'


@needs_py39
def test_token_inactive_user(client: TestClient):
    access_token = get_access_token(
        username="alice", password="secretalice", scope="me", client=client
    )
    response = client.get(
        "/users/me", headers={"Authorization": f"Bearer {access_token}"}
    )
    assert response.status_code == 400, response.text

    assert response.headers["WWW-Authenticate"] == 'Bearer scope="me"'


@needs_py310
def test_token_inactive_user(client: TestClient):
    access_token = get_access_token(
        username="alice", password="secretalice", scope="me", client=client
    )
    response = client.get(
        "/users/me", headers={"Authorization": f"Bearer {access_token}"}
    )
    assert response.status_code == 400, response.text

@app.post("/items/")
def create_item(item: Item):
    return item


@app.get("/items/")
def read_items() -> list[Item]:
    return [
        Item(
            name="Portal Gun",
            description="Device to travel through the multi-rick-verse",
        ),
        Item(name="Plumbus"),

  - author: Jessica Temporal
    author_link: https://jtemporal.com/socials
    link: https://jtemporal.com/tips-on-migrating-from-flask-to-fastapi-and-vice-versa/
    title: Tips on migrating from Flask to FastAPI and vice-versa
  - author: Ankit Anchlia
    author_link: https://linkedin.com/in/aanchlia21
    link: https://hackernoon.com/explore-how-to-effectively-use-jwt-with-fastapi