Request request = new Request.Builder()
            .url(url)
            .build();
    try (Response response = client.newCall(request).execute()) {
      assertTrue(response.code() == 200 || response.code() == 404);
      assertEquals(Protocol.HTTP_2, response.protocol());

      for (Certificate c: response.handshake().peerCertificates()) {
        X509Certificate x = (X509Certificate) c;

# Custom Response Classes - File, HTML, Redirect, Streaming, etc.

There are several custom response classes you can use to create an instance and return them directly from your *path operations*.

Read more about it in the [FastAPI docs for Custom Response - HTML, Stream, File, others](https://fastapi.tiangolo.com/advanced/custom-response/).

You can import them directly from `fastapi.responses`:

```python
from fastapi.responses import (
    FileResponse,

def test(path, headers, expected_status, expected_response, client: TestClient):
    response = client.get(path, headers=headers)
    assert response.status_code == expected_status
    assert response.json() == expected_response


def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")
    assert response.status_code == 200
    assert response.json() == {
        "openapi": "3.1.0",

        response.getServerData().securityMode = 1;
        response.getServerData().encryptedPasswords = true;
        response.getServerData().smaxMpxCount = 50;
        response.getServerData().maxNumberVcs = 1;
        response.getServerData().maxBufferSize = 16384;
        response.getServerData().maxRawSize = 4096;
        response.getServerData().sessKey = 0x12345678;
        response.getServerData().scapabilities = SmbConstants.CAP_UNICODE;

@app.get("/items/")
async def read_items(commons: CommonQueryParams = Depends(CommonQueryParams)):
    response = {}
    if commons.q:
        response.update({"q": commons.q})
    items = fake_items_db[commons.skip : commons.skip + commons.limit]
    response.update({"items": items})

        self.limit = limit


@app.get("/items/")
async def read_items(commons: CommonQueryParams = Depends()):
    response = {}
    if commons.q:
        response.update({"q": commons.q})
    items = fake_items_db[commons.skip : commons.skip + commons.limit]
    response.update({"items": items})

            assertTrue(response.isError());
        }

        @Test
        @DisplayName("Should clear received state")
        void testClearReceived() {
            response.received();
            assertTrue(response.isReceived());

            response.clearReceived();

            assertFalse(response.isReceived());
        }
    }

    @Nested

                        response = (TreeConnectResponse) request.getResponse();
                        if (response.isReceived() && !response.isError() && response.getErrorCode() == NtStatus.NT_STATUS_SUCCESS) {
                            if (!transport.isDisconnected()) {
                                treeConnected(transport, sess, response);
                            }
                            throw se;

                request.setFlags(registration.getFlags());

                WitnessRegisterResponse response = rpcClient.register(request);

                if (response != null && response.isSuccess()) {
                    registration.setState(WitnessRegistrationState.REGISTERED);
                    registration.setContextHandle(response.getContextHandle());
                    registrations.put(registration.getRegistrationId(), registration);

## Documentación de Descripción de Response - OpenAPI { #documentation-response-description-openapi }

Para definir la descripción del response, mostrada en la interfaz de usuario de la documentación, lee la documentación para [Tutorial - Configuraciones de Path Operation - Descripción del Response](../tutorial/path-operation-configuration.md#response-description){.internal-link target=_blank}.