Örneğin `pip install python-multipart`.

///

## `Form` Sınıfını Projenize Dahil Edin

`Form` sınıfını `fastapi`'den projenize dahil edin:

{* ../../docs_src/request_forms/tutorial001_an_py39.py hl[3] *}

## `Form` Parametrelerini Tanımlayın

Form parametrelerini `Body` veya `Query` için yaptığınız gibi oluşturun:

import com.google.common.collect.testing.features.MapFeature;
import java.util.Collection;
import java.util.Map.Entry;
import org.junit.Ignore;

/**
 * Tests {@link java.util.Map#hashCode}.
 *
 * @author George van den Driessche
 * @author Chris Povirk
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

 * Note that this means a test should not require more than one CollectionSize, since a particular
 * collection instance can only be one size at once.
 *
 * @author George van den Driessche
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible
public enum CollectionSize implements Feature<Collection>, Comparable<CollectionSize> {

`swagger_ui_parameters` empfängt ein <abbr title="Dictionary – Zuordnungstabelle: In anderen Sprachen auch Hash, Map, Objekt, Assoziatives Array genannt">Dictionary</abbr> mit den Konfigurationen, die direkt an die Swagger-Oberfläche übergeben werden.

FastAPI konvertiert die Konfigurationen nach **JSON**, um diese mit JavaScript kompatibel zu machen, da die Swagger-Oberfläche das benötigt.

 * Note that this means a test should not require more than one CollectionSize, since a particular
 * collection instance can only be one size at once.
 *
 * @author George van den Driessche
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible
public enum CollectionSize implements Feature<Collection>, Comparable<CollectionSize> {

import java.util.SortedMap;
import java.util.TreeMap;
import org.jspecify.annotations.NullMarked;

/**
 * Tests for {@link ForwardingSortedMap} using {@link MapInterfaceTest}.
 *
 * @author George van den Driessche
 */
@GwtCompatible
@NullMarked
public class ForwardingSortedMapImplementsMapTest extends SortedMapInterfaceTest<String, Integer> {

Für die nächsten Beispiele könnten Sie auch `from starlette.middleware.something import SomethingMiddleware` verwenden.

**FastAPI** bietet mehrere Middlewares via `fastapi.middleware` an, als Annehmlichkeit für Sie, den Entwickler. Die meisten verfügbaren Middlewares kommen aber direkt von Starlette.

///

## `HTTPSRedirectMiddleware` { #httpsredirectmiddleware }

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.junit.Ignore;

/**
 * Tests {@link List#equals}.
 *
 * @author George van den Driessche
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.

 *     somehow provide an instance of the class under test, plus any other information required to
 *     parameterize the test.
 * @author George van den Driessche
 */
@GwtCompatible
@NullMarked
public class AbstractTester<G> extends TestCase {
  private G subjectGenerator;
  private String suiteName;
  private @Nullable Runnable setUp;

Das ist keine Limitation von **FastAPI**, sondern Teil des HTTP-Protokolls.

///

## Zusammenfassung { #recap }