<img src="/img/tutorial/websockets/image01.png">

You can type messages in the input box, and send them:

<img src="/img/tutorial/websockets/image02.png">

And your **FastAPI** application with WebSockets will respond back:

<img src="/img/tutorial/websockets/image03.png">

You can send (and receive) many messages:

<img src="/img/tutorial/websockets/image04.png">

And all of them will use the same WebSocket connection.

        if (values.length == 0) {
            return StringUtil.EMPTY;
        }
        return values[values.length - 1];
    }

    /**
     * Decodes an encoded path ID back to the original path.
     *
     * @param id the encoded path ID
     * @return the decoded path string
     */
    public static String decodePath(final String id) {
        final PathInfo pi = convertToItem(id);

Ancak server'a olan bağlantınız koparsa, **çalışan process** muhtemelen ölür.

Ve server yeniden başlatılırsa (örneğin update'lerden sonra ya da cloud provider'ın migration'larından sonra) bunu muhtemelen **fark etmezsiniz**. Dolayısıyla process'i manuel yeniden başlatmanız gerektiğini de bilmezsiniz. Sonuçta API'niz ölü kalır. 😱

### Startup'ta Otomatik Çalıştırma { #run-automatically-on-startup }

func ExampleFields() {
	fmt.Printf("Fields are: %q", bytes.Fields([]byte("  foo bar  baz   ")))
	// Output: Fields are: ["foo" "bar" "baz"]
}

func ExampleFieldsFunc() {
	f := func(c rune) bool {
		return !unicode.IsLetter(c) && !unicode.IsNumber(c)
	}
	fmt.Printf("Fields are: %q", bytes.FieldsFunc([]byte("  foo1;bar2,baz3..."), f))
	// Output: Fields are: ["foo1" "bar2" "baz3"]
}

func ExampleHasPrefix() {

    
    private void scheduleServiceRetry() {
        scheduler.schedule(() -> {
            try {
                // Test if service is back online
                if (testWitnessService()) {
                    serviceAvailable = true;
                    log.info("Witness service is back online");
                    
                    // Re-register for notifications
                    reregisterNotifications();

  /** Swappable internal implementation of an ImmutableSet.Builder. */
  private abstract static class SetBuilderImpl<E> {
    // The first `distinct` elements are non-null.
    // Since we can never access null elements, we don't mark this nullable.
    E[] dedupedElements;
    int distinct;

    @SuppressWarnings("unchecked")
    SetBuilderImpl(int expectedCapacity) {
      this.dedupedElements = (E[]) new Object[expectedCapacity];

        assertFalse(testImplementation.isResolveInDfs());

        // Toggle to true
        testImplementation.setResolveInDfs(true);
        assertTrue(testImplementation.isResolveInDfs());

        // Toggle back to false
        testImplementation.setResolveInDfs(false);
        assertFalse(testImplementation.isResolveInDfs());

        // Multiple toggles
        for (int i = 0; i < 10; i++) {

     * @param form the search form containing current search parameters
     * @return HTML response for the failure URL list page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse back(final SearchForm form) {
        return asHtml(path_AdminFailureurl_AdminFailureurlJsp).renderWith(data -> {
            searchPaging(data, form);
        });
    }

    /**

     * Returns to the job log list page.
     *
     * @param form the search form
     * @return HTML response for the list page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse back(final SearchForm form) {
        saveToken();
        return asHtml(path_AdminJoblog_AdminJoblogJsp).renderWith(data -> {
            searchPaging(data, form);
        });
    }

    /**

   * Multimap#asMap()} will iterate through the keys in the order that they were first added to the
   * multimap, save that if all values associated with a key are removed and then the key is added
   * back into the multimap, that key will come last in the key iteration order.
   */
  public static MultimapBuilderWithKeys<@Nullable Object> linkedHashKeys() {
    return linkedHashKeys(DEFAULT_EXPECTED_KEYS);
  }

  /**