Zum Beispiel, wenn Sie es in einer Datenbank speichern möchten.

Dafür bietet **FastAPI** eine Funktion `jsonable_encoder()`.

## `jsonable_encoder` verwenden

Stellen wir uns vor, Sie haben eine Datenbank `fake_db`, die nur JSON-kompatible Daten entgegennimmt.

Sie akzeptiert zum Beispiel keine `datetime`-Objekte, da die nicht kompatibel mit JSON sind.

Swagger UI erledigt das hinter den Kulissen für Sie, benötigt aber diesen „Umleitungs“-Helfer.

///

### Eine *Pfadoperation* erstellen, um es zu testen

Um nun testen zu können, ob alles funktioniert, erstellen Sie eine *Pfadoperation*:

{* ../../docs_src/custom_docs_ui/tutorial001.py hl[36:38] *}

### Es ausprobieren

   */
  public static ListeningScheduledExecutorService noOpScheduledExecutor() {
    return new NoOpScheduledExecutorService();
  }

  /**
   * Creates a scheduled executor service that runs each task in the thread that invokes {@code
   * execute/submit/schedule}, as in {@link CallerRunsPolicy}. This applies both to individually

import java.util.Set;
import junit.framework.Assert;
import junit.framework.AssertionFailedError;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Tester that runs automated sanity tests for any given class. A typical use case is to test static
 * factory classes like:
 *
 * <pre>
 * interface Book {...}
 * public class Books {
 *   public static Book hardcover(String title) {...}

import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
import okio.buffer
import okio.source
import org.junit.jupiter.params.ParameterizedTest
import org.junit.jupiter.params.provider.ArgumentsSource

/** Runs the web platform URL tests against Java URL models.  */
class WebPlatformUrlTest {
  class TestDataParamProvider : SimpleProvider() {
    override fun arguments() = ArrayList<Any>(loadTests())
  }

        super("InputStreamThread");
        this.bufferSize = bufferSize;
        this.outputCallback = outputCallback;

        br = new BufferedReader(new InputStreamReader(is, charset));
    }

    /**
     * Runs the thread to continuously read lines from the input stream.
     * Each line is processed by the output callback (if provided) and added to the buffer.
     * The buffer is maintained as a circular buffer with the specified size.

    ZWZlcmVuY2UxHzAdBgNVBAsTFihjKSAyMDA2IEVudHJ1c3QsIEluYy4xLTArBgNV
    BAMTJEVudHJ1c3QgUm9vdCBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTCCASIwDQYJ
    KoZIhvcNAQEBBQADggEPADCCAQoCggEBALaVtkNC+sZtKm9I35RMOVcF7sN5EUFo
    Nu3s/poBj6E4KPz3EEZmLk0eGrEaTsbRwJWIsMn/MYszA9u3g3s+IIRe7bJWKKf4
    4LlAcTfFy0cOlypowCKVYhXbR9n10Cv/gkvJrT7eTNuQgFA/CYqEAOwwCj0Yzfv9
    KlmaI5UXLEWeH25DeW0MXJj+SKfFI0dcXv1u5x609mhF0YaDW6KKjbHjKYD+JXGI

  @Param boolean noWorkToDo;

  Random random;
  String testString;

  @BeforeExperiment
  void setUp() {
    random = new Random(0xdeadbeef); // fix the seed so results are comparable across runs

    int nonAlpha = size / nonAlphaRatio;
    int alpha = size - nonAlpha;

    List<Character> chars = Lists.newArrayListWithCapacity(size);
    for (int i = 0; i < alpha; i++) {
      chars.add(randomAlpha());

sou
t'ha
t'han
t'he
ta
tal
també
tampoc
tan
tant
tanta
tantes
teu
teus
teva
teves
ton
tons
tot
tota
totes
tots
un
una
unes
uns
us
va
vaig
vam
van
vas
veu
vosaltres
vostra
vostre

- When you create your backup job, choose the backup repository you created above.

## Test the setup