# Webhooks OpenAPI { #openapi-webhooks }

Existem situações onde você deseja informar os **usuários** da sua API que a sua aplicação pode chamar a aplicação *deles* (enviando uma requisição) com alguns dados, normalmente para **notificar** algum tipo de **evento**.

  /**
   * Converts the specified {@code String str} from this format to the specified {@code format}. A
   * "best effort" approach is taken; if {@code str} does not conform to the assumed format, then
   * the behavior of this method is undefined but we make a reasonable effort at converting anyway.
   */
  public final String to(CaseFormat format, String str) {
    checkNotNull(format);
    checkNotNull(str);

  /**
   * Converts the specified {@code String str} from this format to the specified {@code format}. A
   * "best effort" approach is taken; if {@code str} does not conform to the assumed format, then
   * the behavior of this method is undefined but we make a reasonable effort at converting anyway.
   */
  public final String to(CaseFormat format, String str) {
    checkNotNull(format);
    checkNotNull(str);

     * @param format the date format pattern or "pdf_date" for PDF date format
     * @return parsed Date object, or null if parsing fails
     */
    public static Date parseDate(final String value, final String format) {
        if (value == null) {
            return null;
        }

        try {
            if (PDF_DATE.equals(format)) {
                final Calendar cal = DateConverter.toCalendar(value);

        }
        return thread;
      }
    };
  }

  // weird case in which users pass the format string but not the associated arguments
  @SuppressWarnings("AnnotateFormatMethod")
  private static String format(String format, Object... args) {
    return String.format(Locale.ROOT, format, args);
  }

        }
    }

    // --- format() fluent API tests ---

    @Test
    public void test_format_returnsThis() {
        final IndexExportJob result = indexExportJob.format("html");
        assertSame(indexExportJob, result);
    }

    @Test
    public void test_format_unsupportedFormat() {
        try {
            indexExportJob.format("xml");

    }

    /**
     * Sets the export format.
     *
     * @param format the format name (e.g. "html", "json")
     * @return this instance for method chaining
     */
    public IndexExportJob format(final String format) {
        this.formatter = createFormatter(format);
        return this;
    }

    /**
     * Creates a formatter for the given format name.
     *
     * @param format the format name

    String format = "super-duper-thread-%s";
    ThreadFactory factory = builder.setNameFormat(format).build();
    for (int i = 0; i < 11; i++) {
      assertThat(factory.newThread(monitoredRunnable).getName())
          .isEqualTo(rootLocaleFormat(format, i));
    }
  }

  public void testNameFormatWithPercentD_custom() {
    String format = "super-duper-thread-%d";

    }

    ReleasedVersion releasedVersion(String version, long date = System.currentTimeMillis()) {
        new ReleasedVersion(version, format.format(new Date(date)))
    }

    ReleasedVersion snapshot(String baseVersion, long date = System.currentTimeMillis()) {
        releasedVersion("${baseVersion}-${format.format(new Date(date))}", date)
    }

    val direction = if (inbound) "<<" else ">>"
    return format(
      "%s 0x%08x %5d %-13s %d",
      direction,
      streamId,
      length,
      formattedType,
      windowSizeIncrement,
    )
  }

  internal fun formattedType(type: Int): String = if (type < FRAME_NAMES.size) FRAME_NAMES[type] else format("0x%02x", type)

  /**