{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[28:31] hl[29] *}

### Sem tipo de retorno { #no-return-type }

Você também pode omitir o tipo de retorno. O FastAPI usará o [`jsonable_encoder`](./encoder.md) para converter os dados e enviá-los.

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[34:37] hl[35] *}

## `ServerSentEvent` { #serversentevent }

   *
   * @param numBytes the number of bytes in the byte array
   * @param expectedCount the expected number of roundtrippable permutations
   * @param start the starting bytes encoded as a long as big-endian
   * @param lim the limit of bytes to process encoded as a long as big-endian, or -1 to mean the max
   *     limit for numBytes
   */
  @GwtIncompatible // java.nio.charset.Charset

    """

    def render(self, content: Any) -> bytes:
        assert ujson is not None, "ujson must be installed to use UJSONResponse"
        return ujson.dumps(content, ensure_ascii=False).encode("utf-8")


@deprecated(
    "ORJSONResponse is deprecated, FastAPI now serializes data directly to JSON "
    "bytes via Pydantic when a return type or response model is set, which is "

Bunu yönetmek için önce `username` ve `password` değerlerini UTF-8 ile encode ederek `bytes`’a dönüştürürüz.

Sonra `secrets.compare_digest()` kullanarak `credentials.username`’in `"stanleyjobson"` ve `credentials.password`’ün `"swordfish"` olduğundan emin olabiliriz.

## 어떤 데이터든 JSON 호환으로 변환하기 { #convert-any-data-to-json-compatible }

어떤 데이터든 JSON 호환 형식으로 변환하려면 [튜토리얼 - JSON 호환 인코더](../tutorial/encoder.md) 문서를 읽어보세요.

## OpenAPI 메타데이터 - 문서 { #openapi-metadata-docs }

라이선스, 버전, 연락처 등의 정보를 포함해 OpenAPI 스키마에 메타데이터를 추가하려면 [튜토리얼 - 메타데이터와 문서 URL](../tutorial/metadata.md) 문서를 읽어보세요.

type ReaderArgs struct {
	unmarshaled bool
}

// IsEmpty - returns whether reader args is empty or not.
func (args *ReaderArgs) IsEmpty() bool {
	return !args.unmarshaled
}

// UnmarshalXML - decodes XML data.
func (args *ReaderArgs) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	// Make subtype to avoid recursive UnmarshalXML().
	type subReaderArgs ReaderArgs
	parsedArgs := subReaderArgs{}

            SMBUtil.writeInt4(0, dst, inBufferLengthOffset);
        } else {
            SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, inBufferOffsetOffset);
            final int len = this.inputBuffer.encode(dst, dstIndex);
            SMBUtil.writeInt4(len, dst, inBufferLengthOffset);
            dstIndex += len;
        }
        return dstIndex - start;
    }

    /**
     * {@inheritDoc}
     *

    }

    /**
     * Test constructor AvSingleHost(byte[] customData, byte[] machineId).
     * Should correctly encode custom data and machine ID.
     */
    @Test
    void testAvSingleHostCustomDataMachineIdConstructor() {
        byte[] customData = new byte[8];
        customData[0] = 0x01;
        customData[7] = 0x08;

## Autres middlewares { #other-middlewares }

Il existe de nombreux autres middlewares ASGI.

Par exemple :

- [Le `ProxyHeadersMiddleware` d'Uvicorn](https://github.com/encode/uvicorn/blob/master/uvicorn/middleware/proxy_headers.py)
- [MessagePack](https://github.com/florimondmanca/msgpack-asgi)

// Value implements serializer interface
func (GobSerializer) Value(ctx context.Context, field *Field, dst reflect.Value, fieldValue interface{}) (interface{}, error) {
	buf := new(bytes.Buffer)
	err := gob.NewEncoder(buf).Encode(fieldValue)
	return buf.Bytes(), err