Ein `Request` hat auch ein `request.receive`, welches eine Funktion ist, die den Body des Requests <abbr title="Englisch „receive“">empfängt</abbr>.

Das `scope`-`dict` und die `receive`-Funktion sind beide Teil der ASGI-Spezifikation.

Und diese beiden Dinge, `scope` und `receive`, werden benötigt, um eine neue `Request`-Instanz zu erstellen.

            assertThrows(CIFSException.class, handle::getSessionKey);
        }
    }

    @Nested
    @DisplayName("Send/Receive Fragment Tests")
    class SendReceiveFragmentTests {

        @Test
        @DisplayName("Should send and receive fragment successfully")
        void testDoSendReceiveFragment_Success() throws Exception {
            DcerpcPipeHandle handle = createMockedDcerpcPipeHandle();

You can use Pydantic's model configuration to `forbid` any `extra` fields:

{* ../../docs_src/header_param_models/tutorial002_an_py310.py hl[10] *}

If a client tries to send some **extra headers**, they will receive an **error** response.

A `Request` also has a `request.receive`, that's a function to "receive" the body of the request.

The `scope` `dict` and `receive` function are both part of the ASGI specification.

And those two things, `scope` and `receive`, are what is needed to create a new `Request` instance.

     *
     * @return send operation count
     */
    public long getRdmaSends() {
        return rdmaSends.get();
    }

    /**
     * Get total number of RDMA receive operations
     *
     * @return receive operation count
     */
    public long getRdmaReceives() {
        return rdmaReceives.get();
    }

    /**
     * Get total bytes transferred via RDMA
     *

# Request Files { #request-files }

You can define files to be uploaded by the client using `File`.

/// info

To receive uploaded files, 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

{* ../../docs_src/request_form_models/tutorial002_an_py39.py hl[12] *}

If a client tries to send some extra data, they will receive an **error** response.

For example, if the client tries to send the form fields:

* `username`: `Rick`
* `password`: `Portal Gun`
* `extra`: `Mr. Poopybutthole`

They will receive an error response telling them that the field `extra` is not allowed:

```json
{
    "detail": [
        {

            RdmaMemoryRegion recvRegion = bufferManager.getReceiveRegion();
            assertNotNull(recvRegion, "Receive region should not be null");
            assertTrue(recvRegion.getSize() > 0, "Receive region should have positive size");
            assertNotNull(recvRegion.getBuffer(), "Receive region buffer should not be null");

            // Test buffer pooling statistics

If a client tries to send some **extra cookies**, they will receive an **error** response.

Poor cookie banners with all their effort to get your consent for the <abbr title="This is another joke. Don't pay attention to me. Have some coffee for your cookie. ☕">API to reject it</abbr>. 🍪

For example, it doesn't receive `datetime` objects, as those are not compatible with JSON.

So, a `datetime` object would have to be converted to a `str` containing the data in <a href="https://en.wikipedia.org/wiki/ISO_8601" class="external-link" target="_blank">ISO format</a>.

The same way, this database wouldn't receive a Pydantic model (an object with attributes), only a `dict`.