Esto cambió en FastAPI 0.106.0 con la intención de no retener recursos mientras se espera a que la response viaje por la red.

/// tip | Consejo

Adicionalmente, una tarea en segundo plano normalmente es un conjunto independiente de lógica que debería manejarse por separado, con sus propios recursos (por ejemplo, su propia conexión a la base de datos).

Así, probablemente tendrás un código más limpio.

///

<div class="termy">

```console
$ pip install "fastapi[all]"
---> 100%
```

</div>

/// info | Información

En Pydantic v1 venía incluido con el paquete principal. Ahora se distribuye como este paquete independiente para que puedas elegir si instalarlo o no si no necesitas esa funcionalidad.

///

### Crear el objeto `Settings` { #create-the-settings-object }

        t2.numThreads = 5;
        t2.url = "smb://server2/share/file.txt";

        // Verify independence
        assertEquals(2, t1.numThreads, "t1 should have its own numThreads value");
        assertEquals(5, t2.numThreads, "t2 should have its own numThreads value");
        assertEquals("smb://server1/share/file.txt", t1.url, "t1 should have its own URL");

        Thread.sleep(500);

        // Now it should be expired
        assertTrue(auth.isExpired());
    }

    /**
     * Test password array independence after construction
     */
    @Test
    @DisplayName("Test password array is truly independent of input")
    public void testPasswordArrayIndependence() {
        char[] originalPassword = "IndependentPass123!".toCharArray();

        assertSame(originalKey, serverData.encryptionKey);
    }

    /**
     * Test multiple ServerData instances are independent
     */
    @Test
    @DisplayName("Test multiple instances are independent")
    public void testMultipleInstancesIndependence() {
        // Given
        ServerData serverData1 = new ServerData();
        ServerData serverData2 = new ServerData();

     * <li>The name of the child's base directory matches the artifact id of the child.</li>
     * </ul>
     * Note that for the sake of independence from the user
     * environment, the filesystem is intentionally not used for the calculation.</p>
     *
     * @param child The child model, must not be <code>null</code>.

 *
 * <p>{@code CharSource} provides two kinds of methods:
 *
 * <ul>
 *   <li><b>Methods that return a reader:</b> These methods should return a <i>new</i>, independent
 *       instance each time they are called. The caller is responsible for ensuring that the
 *       returned reader is closed.
 *   <li><b>Convenience methods:</b> These are implementations of common operations that are

 *
 * <p>{@code CharSource} provides two kinds of methods:
 *
 * <ul>
 *   <li><b>Methods that return a reader:</b> These methods should return a <i>new</i>, independent
 *       instance each time they are called. The caller is responsible for ensuring that the
 *       returned reader is closed.
 *   <li><b>Convenience methods:</b> These are implementations of common operations that are

        assertEquals("16s", builder.timeoutSettings.clusterTimeout);
    }

    @Test
    public void testTimeoutSettingsIndependence() {
        // Test that timeout settings are independent for each builder instance
        SuggestSettingsBuilder builder1 = new SuggestSettingsBuilder();
        SuggestSettingsBuilder builder2 = new SuggestSettingsBuilder();

        builder1.scrollTimeout("10s");

        assertSame(pooled1.getObject(), pooled2.getObject()); // Same wrapped object
    }

    /**
     * Test factory configuration independence
     */
    public void test_factoryConfigurationIndependence() {
        // Each factory instance has independent configuration
        assertEquals("testComponent", factory.getComponentName());
        assertSame(container, factory.getCrawlerContainer());