"item2": {
        "description": "Music is my aeroplane, it's my aeroplane",
        "type": "plane",
        "size": 5,
    },
}


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

from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/users/{user_id}/items/{item_id}")
async def read_user_item(
    user_id: int, item_id: str, q: Union[str, None] = None, short: bool = False
):
    item = {"item_id": item_id, "owner_id": user_id}
    if q:
        item.update({"q": q})
    if not short:
        item.update(

@router.get("/")
async def read_items():
    return fake_items_db


@router.get("/{item_id}")
async def read_item(item_id: str):
    if item_id not in fake_items_db:
        raise HTTPException(status_code=404, detail="Item not found")
    return {"name": fake_items_db[item_id]["name"], "item_id": item_id}


@router.put(
    "/{item_id}",
    tags=["custom"],
    responses={403: {"description": "Operation forbidden"}},
)

        setThumbnailId_Terms("thumbnail_id", opLambda, null);
    }

    public void setThumbnailId_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda, OperatorCall<BsThumbnailQueueCA> aggsLambda) {
        setThumbnailId_Terms("thumbnail_id", opLambda, aggsLambda);
    }

             }
            ],
            "stream_idle_timeout": "0s",
            "normalize_path": true,
            "request_id_extension": {
             "typed_config": {
              "@type": "type.googleapis.com/envoy.extensions.request_id.uuid.v3.UuidRequestIdConfig",
              "use_request_id_for_trace_sampling": true
             }
            },
            "path_with_escaped_slashes_action": "KEEP_UNCHANGED"

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/{item_id}")
async def read_item(item_id: str, q: str | None = None):
    if q:
        return {"item_id": item_id, "q": q}

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",
            headers={"X-Error": "Some custom header"},
        )
    return {"item": items[item_id]}


@app.get("/http-no-body-statuscode-exception")

@dataclass
class Author:
    name: str
    items: List[Item] = field(default_factory=list)  # (3)


app = FastAPI()


@app.post("/authors/{author_id}/items/", response_model=Author)  # (4)
async def create_author_items(author_id: str, items: List[Item]):  # (5)
    return {"name": author_id, "items": items}  # (6)


@app.get("/authors/", response_model=List[Author])  # (7)
def get_authors():  # (8)
    return [  # (9)
        {

from fastapi.testclient import TestClient

app = FastAPI()


@app.put("/items/{item_id}")
def save_item_no_body(item_id: str):
    return {"item_id": item_id}


client = TestClient(app)


def test_put_no_body():
    response = client.put("/items/foo")
    assert response.status_code == 200, response.text
    assert response.json() == {"item_id": "foo"}


def test_put_no_body_with_body():

💖 `/users/me`, ➡️ 💬 👈 ⚫️ 🤚 📊 🔃 ⏮️ 👩‍💻.

& ⤴️ 👆 💪 ✔️ ➡ `/users/{user_id}` 🤚 💽 🔃 🎯 👩‍💻 👩‍💻 🆔.

↩️ *➡ 🛠️* 🔬 ✔, 👆 💪 ⚒ 💭 👈 ➡ `/users/me` 📣 ⏭ 1️⃣ `/users/{user_id}`:

```Python hl_lines="6  11"
{!../../../docs_src/path_params/tutorial003.py!}
```

⏪, ➡ `/users/{user_id}` 🔜 🏏 `/users/me`, "💭" 👈 ⚫️ 📨 🔢 `user_id` ⏮️ 💲 `"me"`.

➡, 👆 🚫🔜 ↔ ➡ 🛠️:

```Python hl_lines="6  11"