For example, if you need to store it in a database.

For that, **FastAPI** provides a `jsonable_encoder()` function.

## Using the `jsonable_encoder` { #using-the-jsonable-encoder }

Let's imagine that you have a database `fake_db` that only receives JSON compatible data.

For example, it doesn't receive `datetime` objects, as those are not compatible with JSON.

        return auth;
    }

    /**
     * Gets the URL that is requesting authentication.
     * @return the URL requiring authentication
     */
    protected final String getRequestingURL() {
        return this.url;
    }

    /**
     * Gets the authentication exception that triggered this request.
     * @return the authentication exception
     */

  <exclude name="**/testing/**"/>
</source>

<!--
    We used to set this only for packages that had manual supersource. That
    worked everywhere that I know of except for one place: when running the GWT
    util.concurrent tests under Guava.

    The problem is that GWT responds poorly to two .gwt.xml files in the same
    Java package; see

     * Creates and returns a {@link ParameterizedClassDesc} that represents the type of the field.
     *
     * @param field
     *            The field. Must not be {@literal null}.
     * @param map
     *            A {@link Map} with type variables as keys and type arguments as values for the parameterized type. Must not be {@literal null}.
     * @return A {@link ParameterizedClassDesc} that represents the type of the field.
     */

public abstract class AssertionUtil {

    /**
     * Do not instantiate.
     */
    protected AssertionUtil() {
    }

    /**
     * Asserts that the argument is not <code>null</code>.
     *
     * @param argName
     *            The name of the argument that must not be {@code null}.
     * @param argValue
     *            The value of the argument.
     * @throws NullArgumentException

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all
      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the

 * take advantage of the {@linkplain Futures utilities built atop the class}. The way that you will
 * create {@code ListenableFuture} instances depends on how you currently create {@code Future}
 * instances:
 *
 * <ul>
 *   <li>If you receive them from an {@code java.util.concurrent.ExecutorService}, convert that

    assertEquals(
        8,
        getDoneFromTimeoutOverload(transform(immediateFuture, adder, directExecutor())).intValue());
  }

  /**
   * Test that the function is invoked only once, even if it throws an exception. Also, test that
   * that function's result is wrapped in an ExecutionException.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection

    assertEquals(
        8,
        getDoneFromTimeoutOverload(transform(immediateFuture, adder, directExecutor())).intValue());
  }

  /**
   * Test that the function is invoked only once, even if it throws an exception. Also, test that
   * that function's result is wrapped in an ExecutionException.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection

    .sslSocketFactory(clientCertificates.sslSocketFactory(), clientCertificates.trustManager())
    .build();
```

With a server that holds a certificate and a client that trusts it we have enough for an HTTPS
handshake. The best part of this example is that we don't need to make our test code insecure with a
a fake `HostnameVerifier` or `X509TrustManager`.

Certificate Authorities
-----------------------