attempt.html

<script type="text/javascript">
  RED.nodes.registerType("attempt", {
    category: "common",
    paletteLabel: "attempt",
    color: '#F07A4C',
    icon: "font-awesome/fa-repeat",
    defaults: {
      name: { value: "" },
      attempts: { value: 3, validate: RED.validators.number() },
      delay: { value: 1000, validate: RED.validators.number() }
    },
    inputs: 1,
    outputs: 2,
    label: function () {
      return this.name || `${this.attempts} attempts`;
    }
  });
</script>

<script type="text/html" data-template-name="attempt">
  <div class="form-row">
    <div class="form-row">
    <label for="node-input-name">Name</label>
    <input type="text" id="node-input-name">
    </div>
    <div class="form-tips" style="width: auto">Pay attention: works properly only with connected Catch node.</div>
  </div>
  <div class="form-row">
    <label for="node-input-name">Attempts</label>
    <input type="number" id="node-input-attempts" min="2" max="100">
  </div>
  <div class="form-row">
    <label for="node-input-name">Delay</label>
    <input type="number" min="100" max="60000" id="node-input-delay">
  </div>
</script>

<script type="text/html" data-help-name="attempt">
  <p>This node simplifies message retry logic in case of errors.</p>
  <h1>How it works:</h1>
  <ul>
    <li>The incoming message is passed to the first output.</li>
    <li>If the node connected to the first output throws an error, the message is retried after a delay.</li>
    <li>The number of attempts and delay are configurable.</li>
    <li>If all attempts fail, the message is sent to the second output.</li>
  </ul>
  <h1>Important:</h1>
  <ul>
    <li>A <b>Catch node</b> must be connected to the <b>input</b> of the <b>Attempt node</b> to handle errors.</li>
    <li>In the Catch node’s settings, ensure <b>only the node connected to the first output</b> is selected.</li>
  </ul>
</script>