# Обратные вызовы в OpenAPI { #openapi-callbacks }

Вы можете создать API с *операцией пути* (обработчиком пути), которая будет инициировать HTTP-запрос к *внешнему API*, созданному кем-то другим (скорее всего тем же разработчиком, который будет использовать ваш API).

   * java.util.concurrent.CompletableFuture#thenAcceptAsync}.
   *
   * @param callback The callback to invoke when this {@code Future} is completed.
   * @param executor The executor to run {@code callback} when the future completes.
   */
  public final void addCallback(FutureCallback<? super V> callback, Executor executor) {
    Futures.addCallback(this, callback, executor);
  }

                )
                if request_body_oai:
                    operation["requestBody"] = request_body_oai
            if route.callbacks:
                callbacks = {}
                for callback in route.callbacks:
                    if isinstance(callback, routing.APIRoute):
                        (
                            cb_path,
                            cb_security_schemes,

                            },
                        },
                        "callbacks": {
                            "event_callback": {
                                "{$callback_url}/events/{$request.body.title}": {
                                    "get": {
                                        "summary": "Event Callback",

        NameCallback nc = new NameCallback("user:");
        PasswordCallback pc = new PasswordCallback("pass:", false);

        // Exercise callback handler with both callbacks supplied
        Callback[] cbs = new Callback[] { nc, pc };
        auth.handle(cbs);

        // Name should be formatted as username@domain
        assertEquals("user@DOM", nc.getName());
        // Password should be set

func (db *DB) InstanceGet(key string) (interface{}, bool) {
	return db.Statement.Settings.Load(fmt.Sprintf("%p", db.Statement) + key)
}

// Callback returns callback manager
func (db *DB) Callback() *callbacks {
	return db.callbacks
}

// AddError add error to db
func (db *DB) AddError(err error) error {
	if err != nil {
		if db.Config.TranslateError {

   * across calls to multiple listeners. Specifically, a given listener will have its callbacks
   * invoked in the same order as the underlying service enters those states. Additionally, at most
   * one of the listener's callbacks will execute at once. However, multiple listeners' callbacks
   * may execute concurrently, and listeners may execute in an order different from the one in which
   * they were registered.

     *   <li>Index update operations through callbacks</li>
     *   <li>Error handling and failure logging</li>
     *   <li>Cleanup of old documents after successful crawling</li>
     * </ul>
     */
    protected static class DataCrawlingThread extends Thread {

        /** Configuration for the data store being crawled */
        private final DataConfig dataConfig;

        /** Callback for handling document indexing operations */

     * handleAllCompleted(), they will already have been nulled out. But in the case of
     * whenAll*().call*(), this future may be pending until the callback runs -- or even longer in
     * the case of callAsync(), which waits for the callback's returned future to complete.
     */
    releaseResources(ALL_INPUT_FUTURES_PROCESSED);
  }

  /**

   * across calls to multiple listeners. Specifically, a given listener will have its callbacks
   * invoked in the same order as the underlying service enters those states. Additionally, at most
   * one of the listener's callbacks will execute at once. However, multiple listeners' callbacks
   * may execute concurrently, and listeners may execute in an order different from the one in which
   * they were registered.