price: float
    tax: Union[float, None] = None
    tags: set[str] = set()
    image: Union[Image, None] = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item):
    results = {"item_id": item_id, "item": item}

    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):

        for (ModelProblem problem : problems) {
            severities.add(problem.getSeverity());
        }
    }

    @Override
    public void add(ModelProblemCollectorRequest req) {
        int line = -1;
        int column = -1;
        String source = null;
        String modelId = null;

        if (req.getLocation() != null) {
            line = req.getLocation().getLineNumber();

     */
    int getLineNumber();

    /**
     * Gets the one-based index of the column containing the problem. The column number should refer to some text file
     * that is given by {@link #getSource()}.
     *
     * @return The one-based index of the column containing the problem or non-positive value if unknown.
     */
    int getColumnNumber();

    /**

data class GitHubUser(val login: String, val name: String?)


data class GitHubPullRequestMilestone(val title: String)


data class GitHubPullRequest(
    val number: Int,
    val user: GitHubUser,
    val milestone: GitHubPullRequestMilestone?,
)


val contributorLineRegex = "\\[(.*)]\\(https://github.com/(.*)\\)".toRegex()


const val PAGE_SIZE = 100

Veri doğrulama için arka planda Marshmallow kullanıyor, hatta aynı geliştiriciler tarafından oluşturuldu.

Webargs da harika bir araç ve onu da geçmişte henüz **FastAPI** yokken çok kullandım.

/// info | Bilgi

Webargs aynı Marshmallow geliştirileri tarafından oluşturuldu.

///

/// check | **FastAPI**'a nasıl ilham verdi?

Gelen istek verisi için otomatik veri doğrulamaya sahip olmalı.

///

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


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Item = Body(
        examples=[
            {
                "name": "Foo",
                "description": "A very nice Item",
                "price": 35.4,
                "tax": 3.2,
            },

# Datos de formulario { #form-data }

Cuando necesitas recibir campos de formulario en lugar de JSON, puedes usar `Form`.

/// info | Información

Para usar formularios, primero instala <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Asegúrate de crear un [entorno virtual](../virtual-environments.md){.internal-link target=_blank}, activarlo, y luego instalarlo, por ejemplo:

```console

# Form Data { #form-data }

When you need to receive form fields instead of JSON, you can use `Form`.

/// info

To use forms, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

```console
$ pip install python-multipart
```

* `description`: Описание вашего API; может включать Markdown и будет отображается в документации.
* `routes`: Список маршрутов — это каждая зарегистрированная *операция пути*. Берутся из `app.routes`.

/// info | Информация

Параметр `summary` доступен в OpenAPI 3.1.0 и выше, поддерживается FastAPI версии 0.99.0 и выше.

///

## Переопределение значений по умолчанию { #overriding-the-defaults }