Se uma requisição recebida não for validada corretamente, uma resposta `400` será enviada.

## `GZipMiddleware` { #gzipmiddleware }

Gerencia respostas GZip para qualquer requisição que inclua `"gzip"` no cabeçalho `Accept-Encoding`.

O middleware lidará com respostas padrão e de streaming.

{* ../../docs_src/advanced_middleware/tutorial003_py310.py hl[2,6] *}

Os seguintes argumentos são suportados:

     ```xml
     <dependency>
       <groupId>com.squareup.okio</groupId>
       <artifactId>okio</artifactId>
       <version>1.4.0</version>
     </dependency>
     ```

 *  **`Request.Builder` no longer accepts null if a request body is required.**
    Passing null will now fail for request methods that require a body. Instead
    use an empty body such as this one:

    ```java
        RequestBody.create(null, new byte[0]);

            BufferCache.releaseBuffer(nullBuffer); // Should ignore null
            BufferCache.releaseBuffer(wrongSizeBuffer); // Should ignore wrong size
            BufferCache.releaseBuffer(correctBuffer); // Should accept correct size
        });
    }

    /**
     * Test concurrent buffer allocation and release for thread safety.
     */
    @Test
    public void testConcurrentBufferOperations() throws Exception {

   *
   * <p>If the supplied future is {@linkplain #isDone done} when this method is called and the call
   * is accepted, then this future is guaranteed to have been completed with the supplied future by
   * the time this method returns. If the supplied future is not done and the call is accepted, then
   * the future will be <i>set asynchronously</i>. Note that such a result, though not yet known,

- OkHttp targets the intersection of RFC correct *and* widely implemented.  Incorrect implementations that are very widely implemented e.g. a bug in Apache, Nginx, Google, Firefox should also be handled.

Before your code can be accepted into the project you must also sign the
[Individual Contributor License Agreement (CLA)][1].

                    }
                    if (bufferSize > 0) {
                        list.add(line);
                    }
                    if (outputCallback != null) {
                        outputCallback.accept(line);
                    }
                    if (list.size() > bufferSize) {
                        list.remove(0);
                    }
                }
            } catch (final Exception e) {

    */
    int NTLMSSP_NEGOTIATE_NTLM2 = 0x00080000;

    /**
     * Requests an initial response token.
     */
    int NTLMSSP_REQUEST_INIT_RESPONSE = 0x00100000;

    /**
     * Requests an accept response token.
     */
    int NTLMSSP_REQUEST_ACCEPT_RESPONSE = 0x00200000;

    /**
     * Requests the use of a non-NT session key.
     */
    int NTLMSSP_REQUEST_NON_NT_SESSION_KEY = 0x00400000;

            if (task instanceof VagrantShellTask) {
                VagrantMachine service = task.getProject().getExtensions().getByType(VagrantMachine.class);
                method.accept(service);
            }
        }

        @Override
        public void beforeExecute(Task task) { /* nothing to do */}

        @Override

 * limitations under the License.
 */
package okhttp3

import okio.ByteString

abstract class WebSocketListener {
  /**
   * Invoked when a web socket has been accepted by the remote peer and may begin transmitting
   * messages.
   */
  open fun onOpen(
    webSocket: WebSocket,
    response: Response,
  ) {
  }

/// tip

Here we are using `Query()` because this is a **query parameter**. Later we will see others like `Path()`, `Body()`, `Header()`, and `Cookie()`, that also accept the same arguments as `Query()`.

///

FastAPI will now:

* **Validate** the data making sure that the max length is 50 characters
* Show a **clear error** for the client when the data is not valid