`CORSMiddleware` отвечает на два типа HTTP-запросов...

### CORS-запросы с предварительной проверкой

Это любые `OPTIONS` запросы с заголовками `Origin` и `Access-Control-Request-Method`.

В этом случае middleware перехватит входящий запрос и отправит соответствующие CORS-заголовки в ответе, а также ответ `200` или `400` в информационных целях.

### Простые запросы

# Header-Parameter

So wie `Query`-, `Path`-, und `Cookie`-Parameter können Sie auch <abbr title='Header – Kopfzeilen, Header, Header-Felder: Schlüssel-Wert-Metadaten, die vom Client beim Request, und vom Server bei der Response gesendet werden'>Header</abbr>-Parameter definieren.

## `Header` importieren

Importieren Sie zuerst `Header`:

//// tab | Python 3.10+

```Python hl_lines="3"
{!> ../../docs_src/header_params/tutorial001_an_py310.py!}
```

            /*
             * NtTrans Query Security Desc Request / Response
             */
            NtTransQuerySecurityDesc request = new NtTransQuerySecurityDesc(getContext().getConfig(), f.getFid(), types);
            response = th.send(request, response, RequestParam.NO_RETRY);
            return response.getSecurityDescriptor();
        }
    }

        if (cause instanceof LoginUnauthorizedException) {
            return asJson(createFailureBean(Status.UNAUTHORIZED, "Unauthorized request.")).httpStatus(HTTP_UNAUTHORIZED);
        }
        return asJson(createFailureBean(Status.BAD_REQUEST, createMessage(resource, cause))).httpStatus(HTTP_BAD_REQUEST);
    }

        final StringBuilder buf = new StringBuilder();
        clientFactory.addClient("test:.*", new CrawlerClient() {
            @Override
            public ResponseData execute(final RequestData request) {
                return null;
            }

            @Override
            public void setInitParameterMap(final Map<String, Object> params) {
                buf.append("value=").append(params.get("hoge"));

    /** Sets the socket policy and returns this. */
    fun socketPolicy(socketPolicy: SocketPolicy) =
      apply {
        this.socketPolicy = socketPolicy
      }

    /**
     * Throttles the request reader and response writer to sleep for the given period after each
     * series of [bytesPerPeriod] bytes are transferred. Use this to simulate network behavior.
     */
    fun throttleBody(
      bytesPerPeriod: Long,

    val realChain = chain as RealInterceptorChain
    val exchange = realChain.call.initExchange(realChain)
    val connectedChain = realChain.copy(exchange = exchange)
    return connectedChain.proceed(realChain.request)
  }

        fessConfig.getApiCorsAllowOriginList().forEach(s -> factory.add(s, this));
    }

    @Override
    public void process(final String origin, final ServletRequest request, final ServletResponse response) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final HttpServletResponse httpResponse = (HttpServletResponse) response;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.suggest.index;

import java.util.ArrayList;
import java.util.List;

import org.codelibs.fess.suggest.request.Response;

public class SuggestIndexResponse implements Response {
    protected final int numberOfSuggestDocs;
    protected final int numberOfInputDocs;
    protected final boolean hasError;

3. The `Author` dataclass includes a list of `Item` dataclasses.

4. The `Author` dataclass is used as the `response_model` parameter.

5. You can use other standard type annotations with dataclasses as the request body.

    In this case, it's a list of `Item` dataclasses.

6. Here we are returning a dictionary that contains `items` which is a list of dataclasses.