node-red/nodes/core/parsers/70-JSON.html

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<script type="text/x-red" data-template-name="json">
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="common.label.name"></span></label>
        <input type="text" id="node-input-name" data-i18n="[placeholder]common.label.name">
    </div>
</script>

<script type="text/x-red" data-help-name="json">
    <p>A function that parses the <code>msg.payload</code> to convert a JSON string to/from a javascript object. Places the result back into the payload.</p>
    <p>If the input is a JSON string it tries to parse it to a javascript object.</p>
    <p>If the input is a javascript object it creates a JSON string.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('json',{
        category: 'function',
        color:"#DEBD5C",
        defaults: {
            name: {value:""}
        },
        inputs:1,
        outputs:1,
        icon: "parser-json.png",
        label: function() {
            return this.name||"json";
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        }
    });
</script>