node-red-camunda8/src/nodes/evaluate-decision.html

Camunda 8 nodes for Node-RED

<script type="text/javascript">
    RED.nodes.registerType('evaluate-decision', {
        category: 'camunda',
        color: '#C0DEED',
        defaults: {
            name: { value: '' },
            camunda: { required: true, type: 'camunda' },
        },
        inputs: 1,
        outputs: 1,
        icon: 'evaluate-decision.svg',
        label: function () {
            return this.name || 'evaluate decision';
        },
        paletteLabel: 'evaluate decision',
    });
</script>

<script type="text/x-red" data-template-name="evaluate-decision">
    <div class="form-row">
        <label for="node-input-name"><i class="icon-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
    <div class="form-row">
        <label for="node-input-camunda"><i class="fa fa-server"></i> Camunda Broker</label>
        <input type="text" id="node-input-camunda" placeholder="Camunda Broker" />
    </div>
</script>

<script type="text/x-red" data-help-name="evaluate-decision">
    <p>Evaluates DMN decision tables and returns results. This enables business rule evaluation outside of process context.</p>

    <h3>Inputs</h3>
    <dl class="message-properties">
        <dt>payload.decisionId <span class="property-type">string</span></dt>
        <dd>The ID of the deployed DMN decision to evaluate.</dd>
        
        <dt>payload.variables <span class="property-type">object</span></dt>
        <dd>JSON object containing input variables for the decision evaluation.</dd>
    </dl>

    <h3>Outputs</h3>
    <ol class="node-ports">
        <li>Standard output
            <dl class="message-properties">
                <dt>payload <span class="property-type">object</span></dt>
                <dd>Original payload with added decision evaluation results.</dd>
            </dl>
        </li>
    </ol>

    <h3>Details</h3>
    <p>This node provides the ability to evaluate DMN business rules independently. This is useful for:</p>
    <ul>
        <li>Real-time decision making</li>
        <li>Business rule validation</li>
        <li>Decision-as-a-service patterns</li>
        <li>Rule externalization and centralization</li>
    </ul>

    <h3>Usage Example</h3>
    <p>To evaluate a decision, send a message with the following payload:</p>
    <pre>
{
    "decisionId": "loan_approval",
    "variables": {
        "creditScore": 750,
        "loanAmount": 50000,
        "income": 80000
    }
}
    </pre>

    <p>The decision result will be added to the payload and forwarded to the output.</p>
</script>