### List Available Metrics

Instead of a metrics scrape, you can list the metrics that would be returned by a path by adding a `list` query parameter. The MinIO server then lists all available metrics that could be returned. Note that during an actual metrics scrape only metrics with available _values_ are returned. Metrics with null values are omitted from the scrape results.

      },
      "intervalTime": {
        "type": "integer"
      },
      "timeToLive": {
        "type": "integer"
      },
      "boost": {
        "type": "float"
      },
      "available": {
        "type": "boolean"
      },
      "permissions": {
        "type": "keyword"
      },
      "virtualHosts": {
        "type": "keyword"
      },
      "sortOrder": {
        "type": "integer"

      },
      "scriptData": {
        "type": "keyword"
      },
      "crawler": {
        "type": "boolean"
      },
      "jobLogging": {
        "type": "boolean"
      },
      "available": {
        "type": "boolean"
      },
      "sortOrder": {
        "type": "integer"
      },
      "createdBy": {
        "type": "keyword"
      },
      "createdTime": {
        "type": "long"

      },
      "intervalTime": {
        "type": "integer"
      },
      "timeToLive": {
        "type": "integer"
      },
      "boost": {
        "type": "float"
      },
      "available": {
        "type": "boolean"
      },
      "permissions": {
        "type": "keyword"
      },
      "virtualHosts": {
        "type": "keyword"
      },
      "sortOrder": {
        "type": "integer"

                scheduledJobForm.crudMode = CrudMode.CREATE;
                scheduledJobForm.jobLogging = Constants.ON;
                scheduledJobForm.crawler = Constants.ON;
                scheduledJobForm.available = Constants.ON;
                scheduledJobForm.cronExpression = null;
                final String decodedName = new String(Base64.getUrlDecoder().decode(name), Constants.CHARSET_UTF_8);

<img src="/img/tutorial/custom-response/image01.png">

## Available responses

Here are some of the available responses.

Keep in mind that you can use `Response` to return anything else, or even create a custom sub-class.

/// note | "Technical Details"

    return max(momentAvailable - nowMicros, 0);
  }

  /**
   * Returns the earliest time that permits are available (with one caveat).
   *
   * @return the time that permits are available, or, if permits are available immediately, an
   *     arbitrary past or present time
   */
  abstract long queryEarliestAvailable(long nowMicros);

  /**

    assertEquals(20, joined.size());
    InputStream in = joined.openStream();
    assertFalse(in.markSupported());
    assertEquals(10, in.available());
    int total = 0;
    while (in.read() != -1) {
      total++;
    }
    assertEquals(0, in.available());
    assertEquals(20, total);
  }

  @SuppressWarnings("CheckReturnValue") // these calls to skip always return 0
  public void testSkip() throws Exception {

                client an error.

                If `auto_error` is set to `False`, when the HTTP Basic authentication
                is not available, instead of erroring out, the dependency result will
                be `None`.

                This is useful when you want to have optional authentication.

        // choose when we reach this many
        choose := rand.Uint64() % total
        atTotal := uint64(0)
        for _, pool := range serverPools {
                atTotal += pool.Available
                if atTotal > choose && pool.Available > 0 {
                        return pool.Index
                }
        }
        // Should not happen, but print values just in case.