Якщо були заплановані фонові задачі (розглянуто в розділі [Фонові задачі](background-tasks.md), ви побачите це пізніше), вони виконаються *після* всіх middleware.

///

## Створення middleware { #create-a-middleware }

Щоб створити middleware, ви використовуєте декоратор `@app.middleware("http")` над функцією.

Функція middleware отримує:

* `request`.
* Функцію `call_next`, яка отримає `request` як параметр.

	defer cancel()

	bucket := getRandomBucketName()
	err := s.client.MakeBucket(ctx, bucket, minio.MakeBucketOptions{})
	if err != nil {
		c.Fatalf("bucket creat error: %v", err)
	}

	// Create a policy policy
	policy := "mypolicy"
	policyBytes := fmt.Appendf(nil, `{
 "Version": "2012-10-17",
 "Statement": [
  {
   "Effect": "Allow",
   "Action": [
    "s3:PutObject",
    "s3:GetObject",

     */
    @PostConstruct
    public void init() {
        // Configure commonmark with table extension
        final Iterable<Extension> extensions = Arrays.asList(TablesExtension.create());

        markdownParser = Parser.builder().extensions(extensions).build();

        htmlRenderer = HtmlRenderer.builder().extensions(extensions).softbreak("<br/>").build();

    @BeforeEach
    void setUp() {
        handler = new Handler();
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create handler with default constructor")
        void testDefaultConstructor() {
            // When
            Handler testHandler = new Handler();

            // Then
            assertNotNull(testHandler);
        }

  @ListFeature.Require(SUPPORTS_SET)
  public void testSet_replacingNull() {
    E[] elements = createSamplesArray();
    int i = aValidIndex();
    elements[i] = null;
    collection = getSubjectGenerator().create(elements);

    doTestSet(e3());
  }

  private void doTestSet(E newValue) {
    int index = aValidIndex();
    E initialValue = getList().get(index);
    assertEquals(

 *
 * @author Ben Yu
 */
@NullUnmarked
public class AbstractPackageSanityTestsTest extends TestCase {
  /*
   * This is a public type so that the Android test runner can create an instance directly as it
   * insists upon doing. It then runs the test, which behaves exactly like this package's existing
   * PackageSanityTests. (The test would run on the JVM, too, if not for the suppression below, and

  private CountDownLatch funcCompletionLatch;

  @Override
  protected ListenableFuture<String> buildChainingFuture(ListenableFuture<Integer> inputFuture) {
    outputFuture = SettableFuture.create();
    funcIsWaitingLatch = new CountDownLatch(1);
    funcCompletionLatch = new CountDownLatch(1);
    return transformAsync(inputFuture, new ChainingFunction(), directExecutor());
  }

  @Override

   * for insertions.
   */
  static <E extends @Nullable Object> Set<E> preservesInsertionOrderOnAddsSet() {
    return CompactHashSet.create();
  }

  /** Equivalent to Arrays.copyOfRange(source, from, to, arrayOfType.getClass()). */
  /*
   * Arrays are a mess from a nullness perspective, and Class instances for object-array types are

  private CountDownLatch funcCompletionLatch;

  @Override
  protected ListenableFuture<String> buildChainingFuture(ListenableFuture<Integer> inputFuture) {
    outputFuture = SettableFuture.create();
    funcIsWaitingLatch = new CountDownLatch(1);
    funcCompletionLatch = new CountDownLatch(1);
    return transformAsync(inputFuture, new ChainingFunction(), directExecutor());
  }

  @Override

    implements RowSortedTable<R, C, V> {
  /*
   * TODO(jlevy): Consider adding headTable, tailTable, and subTable methods,
   * which return a Table view with rows keys in a given range. Create a
   * RowSortedTable subinterface with the revised methods?
   */

  StandardRowSortedTable(
      SortedMap<R, Map<C, V>> backingMap, Supplier<? extends Map<C, V>> factory) {
    super(backingMap, factory);
  }