},
                },
                "Body_update_item_items__item_id__put": {
                    "title": "Body_update_item_items__item_id__put",
                    "required": ["item"],
                    "type": "object",
                    "properties": {"item": {"$ref": "#/components/schemas/Item"}},
                },
                "ValidationError": {

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float


class ResponseMessage(BaseModel):
    message: str


class User(BaseModel):
    username: str
    email: str


@app.post("/items/", response_model=ResponseMessage, tags=["items"])
async def create_item(item: Item):
    return {"message": "Item received"}


@app.get("/items/", response_model=list[Item], tags=["items"])

                                    }
                                )
                            }
                        },
                    },
                }
            }
        },
        "components": {
            "schemas": {
                "Body_read_items_items__item_id__put": {

@needs_pydanticv1
def test_create_item(client):
    item = {"title": "Foo", "description": "Something that fights"}
    response = client.post("/users/1/items/", json=item)
    assert response.status_code == 200, response.text
    item_data = response.json()
    assert item["title"] == item_data["title"]
    assert item["description"] == item_data["description"]
    assert "id" in item_data
    assert "owner_id" in item_data

@needs_pydanticv1
def test_create_item(client):
    item = {"title": "Foo", "description": "Something that fights"}
    response = client.post("/users/1/items/", json=item)
    assert response.status_code == 200, response.text
    item_data = response.json()
    assert item["title"] == item_data["title"]
    assert item["description"] == item_data["description"]
    assert "id" in item_data
    assert "owner_id" in item_data

@needs_pydanticv1
def test_create_item(client):
    item = {"title": "Foo", "description": "Something that fights"}
    response = client.post("/users/1/items/", json=item)
    assert response.status_code == 200, response.text
    item_data = response.json()
    assert item["title"] == item_data["title"]
    assert item["description"] == item_data["description"]
    assert "id" in item_data
    assert "owner_id" in item_data

}


@app.get("/items/{item_id}", response_model=Item)
async def read_item(item_id: str):
    return items[item_id]


@app.patch("/items/{item_id}", response_model=Item)
async def update_item(item_id: str, item: Item):
    stored_item_data = items[item_id]
    stored_item_model = Item(**stored_item_data)
    update_data = item.dict(exclude_unset=True)
    updated_item = stored_item_model.copy(update=update_data)

* Suche nach dem Subpackage `routers` (das Verzeichnis unter `app/routers/`) ...
* und importiere daraus die Submodule `items` (die Datei unter `app/routers/items.py`) und `users` (die Datei unter `app/routers/users.py`) ...

Das Modul `items` verfügt über eine Variable `router` (`items.router`). Das ist dieselbe, die wir in der Datei `app/routers/items.py` erstellt haben, es ist ein `APIRouter`-Objekt.

Und dann machen wir das gleiche für das Modul `users`.

app = FastAPI()


@dataclass
class Item:
    name: str
    date: datetime
    price: Optional[float] = None
    owner_ids: Optional[List[int]] = None


@app.get("/items/valid", response_model=Item)
def get_valid():
    return {"name": "valid", "date": datetime(2021, 7, 26), "price": 1.0}


@app.get("/items/object", response_model=Item)
def get_object():
    return Item(

from fastapi import FastAPI, HTTPException

app = FastAPI()

items = {"foo": "The Foo Wrestlers"}


@app.get("/items/{item_id}")
async def read_item(item_id: str):
    if item_id not in items:
        raise HTTPException(status_code=404, detail="Item not found")