```Python hl_lines="2  6-38  41-43"
{!../../docs_src/websockets/tutorial001.py!}
```

## Criando um `websocket`

Em sua aplicação **FastAPI**, crie um `websocket`:

{*../../docs_src/websockets/tutorial001.py hl[46:47]*}

/// note | Detalhes Técnicos

Você também poderia usar `from starlette.websockets import WebSocket`.

        case 9:
          k2 ^= (long) toInt(bb.get(8)); // fall through
        case 8:
          k1 ^= bb.getLong();
          break;
        case 7:
          k1 ^= (long) toInt(bb.get(6)) << 48; // fall through
        case 6:
          k1 ^= (long) toInt(bb.get(5)) << 40; // fall through
        case 5:
          k1 ^= (long) toInt(bb.get(4)) << 32; // fall through
        case 4:

     * reset.
     *
     * @return the array of bytes for the resulting hash value.
     */
    public byte[] engineDigest () {
        // pad output to 56 mod 64; as RFC1320 puts it: congruent to 448 mod 512
        int bufferNdx = (int)(count % BLOCK_LENGTH);
        int padLen = (bufferNdx < 56) ? (56 - bufferNdx) : (120 - bufferNdx);

        // padding is alwas binary 1 followed by binary 0s