Das kann insbesondere eine gute Alternative zur Logik in einer Middleware sein.

Wenn Sie beispielsweise den Requestbody lesen oder manipulieren möchten, bevor er von Ihrer Anwendung verarbeitet wird.

/// danger | "Gefahr"

Dies ist eine „fortgeschrittene“ Funktion.

Wenn Sie gerade erst mit **FastAPI** beginnen, möchten Sie diesen Abschnitt vielleicht überspringen.

///

## Anwendungsfälle

.table-warning:hover {\n  background-color: #ffe8a1;\n}\n\n.table-hover .table-warning:hover > td,\n.table-hover .table-warning:hover > th {\n  background-color: #ffe8a1;\n}\n\n.table-danger,\n.table-danger > th,\n.table-danger > td {\n  background-color: #f5c6cb;\n}\n\n.table-danger th,\n.table-danger td,\n.table-danger thead th,\n.table-danger tbody + tbody {\n  border-color: #ed969e;\n}\n\n.table-hover .table-danger:hover {\n  background-color: #f1b0b7;\n}\n\n.table-hover .table-danger:hover > td,\n.table-hover...

th{border-color:#ffdf7e}.table-hover .table-warning:hover{background-color:#ffe8a1}.table-hover .table-warning:hover>td,.table-hover .table-warning:hover>th{background-color:#ffe8a1}.table-danger,.table-danger>td,.table-danger>th{background-color:#f5c6cb}.table-danger tbody+tbody,.table-danger td,.table-danger th,.table-danger thead th{border-color:#ed969e}.table-hover .table-danger:hover{background-color:#f1b0b7}.table-hover .table-danger:hover>td,.table-hover .table-danger:hover>th{background-color:#f1...

   * exception.
   *
   * @throws IllegalStateException when the call has already been executed.
   */
  fun enqueue(responseCallback: Callback)

  /** Cancels the request, if possible. Requests that are already complete cannot be canceled. */
  fun cancel()

  /**
   * Returns true if this call has been either [executed][execute] or [enqueued][enqueue]. It is an

Das `name="static"` gibt dieser Unteranwendung einen Namen, der intern von **FastAPI** verwendet werden kann.

Alle diese Parameter können anders als "`static`" lauten, passen Sie sie an die Bedürfnisse und spezifischen Details Ihrer eigenen Anwendung an.

## Weitere Informationen

                                </h3>
                            </div>
                            <div class="card-footer">
                                <button type="button" class="btn btn-danger" data-toggle="modal" data-target="#confirmToClearCrawlerIndex">
                                    <em class="fa fa-trash">
                                    <la:message key="labels.clear_crawler_index_button"/>

```Python hl_lines="10"
{!> ../../docs_src/cookie_param_models/tutorial002.py!}
```

////

Se o cliente tentar enviar alguns **cookies extras**, eles receberão um retorno de **erro**.

Coitados dos banners de cookies com todo o seu esforço para obter o seu consentimento para a <abbr title="Isso é uma outra piada. Não preste atenção em mim. Beba um café com o seu cookie. ☕">API rejeitá-lo</abbr>. 🍪

	t.Once.Do(func() {
		t.ttl = ttl
		t.updateFn = update
		t.opts = opts
	})
}

// GetWithCtx will return a cached value or fetch a new one.
// passes a caller context, if caller context cancels nothing
// is cached.
// If the Update function returns an error the value is forwarded as is and not cached.
func (t *Cache[T]) GetWithCtx(ctx context.Context) (T, error) {
	v := t.val.Load()
	ttl := t.ttl

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```Python hl_lines="10"
{!> ../../docs_src/cookie_param_models/tutorial002.py!}
```

////

If a client tries to send some **extra cookies**, they will receive an **error** response.

Poor cookie banners with all their effort to get your consent for the <abbr title="This is another joke. Don't pay attention to me. Have some coffee for your cookie. ☕">API to reject it</abbr>. 🍪