from fastapi import FastAPI
from pydantic import BaseModel


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


app = FastAPI()


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item, q: str | None = None):
    result = {"item_id": item_id, **item.model_dump()}
    if q:
        result.update({"q": q})

from fastapi import FastAPI
from pydantic import BaseModel


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


app = FastAPI()


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item, q: Union[str, None] = None):
    result = {"item_id": item_id, **item.model_dump()}
    if q:
        result.update({"q": q})

from fastapi import FastAPI
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():

    return JSONResponse(
        status_code=422,
        content=jsonable_encoder({"detail": exc.errors(), "body": exc.body}),
    )


class Item(BaseModel):
    title: str
    size: int


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

    return id


@app.get("/items/")
async def read_items(
    id: Annotated[str | None, AfterValidator(check_valid_id)] = None,
):
    if id:
        item = data.get(id)
    else:
        id, item = random.choice(list(data.items()))

### Перевірте

Відкрийте браузер та введіть адресу <a href="http://127.0.0.1:8000/items/5?q=somequery" class="external-link" target="_blank">http://127.0.0.1:8000/items/5?q=somequery</a>.

Ви побачите у відповідь подібний JSON:

```JSON
{"item_id": 5, "q": "somequery"}
```

Ви вже створили API, який:

* Отримує HTTP запити за _шляхами_ `/` та `/items/{item_id}`.

本例中，访问：

```
http://127.0.0.1:8000/items/foo?short=1
```

或

```
http://127.0.0.1:8000/items/foo?short=True
```

或

```
http://127.0.0.1:8000/items/foo?short=true
```

或

```
http://127.0.0.1:8000/items/foo?short=on
```

或

```
http://127.0.0.1:8000/items/foo?short=yes
```

def test_read_nonexistent_item():
    response = client.get("/items/baz", headers={"X-Token": "coneofsilence"})
    assert response.status_code == 404
    assert response.json() == {"detail": "Item not found"}


def test_create_item():
    response = client.post(
        "/items/",
        headers={"X-Token": "coneofsilence"},

client = TestClient(app)


def test_get_validation_error():
    response = client.get("/items/foo")
    assert response.status_code == 400, response.text
    assert "Validation errors:" in response.text
    assert "Field: ('path', 'item_id')" in response.text


def test_get_http_error():
    response = client.get("/items/3")
    assert response.status_code == 418, response.text

    """
    Pass items or `DefaultPlaceholder`s by descending priority.

    The first one to _not_ be a `DefaultPlaceholder` will be returned.

    Otherwise, the first item (a `DefaultPlaceholder`) will be returned.
    """
    items = (first_item,) + extra_items
    for item in items:
        if not isinstance(item, DefaultPlaceholder):
            return item