Get a ModelField representing the request body for a path operation, combining
    all body parameters into a single field if necessary.

    Used to check if it's form data (with `isinstance(body_field, params.Form)`)
    or JSON and to generate the JSON Schema for a request body.

    This is **not** used to validate/parse the request body, that's done with each
    individual body parameter.
    """

     * Creates a new group setting.
     *
     * @param body group setting data to create
     * @return JSON response with created setting ID and status
     */
    @Execute
    public JsonResponse<ApiResult> post$setting(final CreateBody body) {
        validateApi(body, messages -> {});
        validateAttributes(body.attributes, this::throwValidationErrorApi);
        body.crudMode = CrudMode.CREATE;

     *
     * @param body elevate word setting data to update
     * @return JSON response with updated setting ID and status
     */
    @Execute
    public JsonResponse<ApiResult> put$setting(final EditBody body) {
        validateApi(body, messages -> {});
        body.crudMode = CrudMode.EDIT;
        final ElevateWord elevateWord = getElevateWord(body).map(entity -> {
            try {

     * Creates a new data config setting.
     *
     * @param body the request body containing data config information
     * @return JSON response with result status
     */
    // POST /api/admin/dataconfig/setting
    @Execute
    public JsonResponse<ApiResult> post$setting(final CreateBody body) {
        validateApi(body, messages -> {});
        body.crudMode = CrudMode.CREATE;

    // Fourth QUERY request with body "foo" again, should be cached and return "ABC"
    val response1a = client.newCall(request1).execute()
    assertThat(response1a.body.string()).isEqualTo("ABC")

    // Fifth QUERY request with body "bar" again, should be cached and return "DEF"
    val response2a = client.newCall(request2).execute()
    assertThat(response2a.body.string()).isEqualTo("DEF")

Para crear la *path operation* del callback usa el mismo `APIRouter` que creaste arriba.

Debería verse como una *path operation* normal de FastAPI:

* Probablemente debería tener una declaración del body que debería recibir, por ejemplo `body: InvoiceEvent`.
* Y también podría tener una declaración del response que debería devolver, por ejemplo `response_model=InvoiceEventReceived`.

///

Zuerst erstellen wir eine `GzipRequest`-Klasse, welche die Methode `Request.body()` überschreibt, um den Body bei Vorhandensein eines entsprechenden Headers zu dekomprimieren.

Wenn der Header kein `gzip` enthält, wird nicht versucht, den Body zu dekomprimieren.

Auf diese Weise kann dieselbe Routenklasse gzip-komprimierte oder unkomprimierte Requests verarbeiten.

	if err := parseJSONBody(ctx, r.Body, &sites, cred.SecretKey); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	opts := getSRAddOptions(r)
	status, err := globalSiteReplicationSys.AddPeerClusters(ctx, sites, opts)
	if err != nil {
		adminLogIf(ctx, err)
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	body, err := json.Marshal(status)

Mas por causa das nossas mudanças em `GzipRequest.body`, o corpo da requisição será automaticamente descomprimido quando for carregado pelo **FastAPI** quando necessário.

## Acessando o corpo da requisição em um manipulador de exceção { #accessing-the-request-body-in-an-exception-handler }

/// tip | Dica

	resp := rw.Result()
	if resp.StatusCode != 123 {
		t.Fatalf("unexpected status: %v", resp.StatusCode)
	}
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		t.Fatalf("reading response body failed: %v", err)
	}
	if string(body) != "hello" {
		t.Fatalf("response body incorrect: %v", string(body))
	}

	// Check that Unwrap works
	if trw.Unwrap() != rw {