"type": "missing",
                    "loc": ["body", "file"],
                    "msg": "Field required",
                    "input": None,
                }
            ]
        }
    ) | IsDict(
        # TODO: remove when deprecating Pydantic v1
        {
            "detail": [
                {
                    "loc": ["body", "file"],
                    "msg": "field required",

  fun legalToExecuteTwiceCloning() {
    server.enqueue(MockResponse(body = "abc"))
    server.enqueue(MockResponse(body = "def"))

    val request = Request(server.url("/"))

    val call = client.newCall(request)
    val response1 = call.execute()

    val cloned = call.clone()
    val response2 = cloned.execute()

    assertThat("abc").isEqualTo(response1.body.string())
    assertThat("def").isEqualTo(response2.body.string())
  }

class Exchange(
  internal val call: RealCall,
  internal val eventListener: EventListener,
  internal val finder: ExchangeFinder,
  private val codec: ExchangeCodec,
) {
  /** True if the request body need not complete before the response body starts. */
  internal var isDuplex: Boolean = false
    private set

  /** True if there was an exception on the connection to the peer. */
  internal var hasFailure: Boolean = false
    private set

    """
    Get a ModelField representing the request body for a path operation, combining
    all body parameters into a single field if necessary.

    Used to check if it's form data (with `isinstance(body_field, params.Form)`)
    or JSON and to generate the JSON Schema for a request body.

    This is **not** used to validate/parse the request body, that's done with each
    individual body parameter.
    """

### Rewriting Requests

Interceptors can add, remove, or replace request headers. They can also transform the body of those requests that have one. For example, you can use an application interceptor to add request body compression if you're connecting to a webserver known to support it.

```java
/** This interceptor compresses the HTTP request body. Many webservers can't handle this! */
final class GzipRequestInterceptor implements Interceptor {

	// Corrupted XML
	malformedReq := &http.Request{
		Body:          io.NopCloser(bytes.NewReader([]byte("<>"))),
		ContentLength: int64(len("<>")),
	}

	// Not an XML
	badRequest := &http.Request{
		Body:          io.NopCloser(bytes.NewReader([]byte("garbage"))),
		ContentLength: int64(len("garbage")),
	}

	// generates the input request with XML bucket configuration set to the request body.

* `Path()`
* `Query()`
* `Header()`
* `Cookie()`
* `Body()`
* `Form()`
* `File()`

können Sie auch eine Gruppe von `examples` mit zusätzlichen Informationen deklarieren, die zu ihren **JSON-Schemas** innerhalb von **OpenAPI** hinzugefügt werden.

### `Body` mit `examples`

Hier übergeben wir `examples`, welches ein einzelnes Beispiel für die in `Body()` erwarteten Daten enthält:

//// tab | Python 3.10+

            formatDate(1, TimeUnit.HOURS)!!,
          ),
        body = "ABC.1",
      ),
    )
    server.enqueue(
      MockResponse(
        headers =
          headersOf(
            "Last-Modified",
            formatDate(-1, TimeUnit.HOURS)!!,
            "Expires",
            formatDate(1, TimeUnit.HOURS)!!,
          ),
        body = "ABC.2",
      ),
    )
    client =

from typing import Union

from fastapi import Body, FastAPI, status
from fastapi.responses import JSONResponse

app = FastAPI()

items = {"foo": {"name": "Fighters", "size": 6}, "bar": {"name": "Tenders", "size": 3}}


@app.put("/items/{item_id}")
async def upsert_item(
    item_id: str,
    name: Union[str, None] = Body(default=None),
    size: Union[int, None] = Body(default=None),
):
    if item_id in items:

from typing import Annotated

from fastapi import Body, FastAPI, status
from fastapi.responses import JSONResponse

app = FastAPI()

items = {"foo": {"name": "Fighters", "size": 6}, "bar": {"name": "Tenders", "size": 3}}


@app.put("/items/{item_id}")
async def upsert_item(
    item_id: str,
    name: Annotated[str | None, Body()] = None,
    size: Annotated[int | None, Body()] = None,
):
    if item_id in items: