node-red-contrib-openfaas-gateway/openfaas.html

Call your OpenFaaS function from Node RED, with standard gateway defined as http://gateway:8080

<script type="text/javascript">
    RED.nodes.registerType('openfaas',{
        category: 'function',
        color: '#a6bbcf',
        defaults: {
            name: { value:"" },
            server: { value:"http://gateway:8080" }
        },
        inputs: 1,
        outputs: 1,
        icon: "function.png",
        color: "#C0DEED",
        label: function() {
            return this.name || "OpenFaaS function";
        },
        // oneditprepare: function(ev) {
        //     jQuery(function($) {
        //         var urlfield = $("#node-input-server")
        //         var url = urlfield.val() ? urlfield.val() : urlfield.attr('placeholder')
        //         console.warn(url);
        //         $.getJSON(url)
        //             .then(function(list){
        //                 console.warn(list);
        //             })
        //             .catch(function(e){
        //                 console.warn(e);
        //             })
        //     })
        // }
    });
</script>

<script type="text/x-red" data-template-name="openfaas">
    <div class="form-row">
        <label for="node-input-name"><i class=""></i> Function Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
    <div class="form-row">
        <label for="node-input-server"><i class=""></i> Server</label>
        <input type="text" id="node-input-server" placeholder="http://gateway:8080">
    </div>
    <!--
    <div class="form-row">
        <label for="node-input-image"><i class=""></i> Image</label>
        <input type="text" id="node-input-image" placeholder="Image name">
    </div>
    <div class="form-row">
        <label for="node-input-language"><i class=""></i> Language</label>
        <select id="node-input-language" placeholder="">
            <option>csharp</option>
            <option>go-armhf</option>
            <option>go</option>
            <option>node</option>
            <option>node-arm64</option>
            <option>node-armhf</option>
            <option>node</option>
            <option>python-armhf</option>
            <option>python</option>
            <option>python3</option>
            <option>ruby</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-body"><i class=""></i> Function body</label>
        <textarea id="node-input-body" placeholder="" style="width:100%;height:240px;"></textarea>
    </div>
    -->
</script>

<script type="text/x-red" data-help-name="openfaas">
    <p>Invoke a function by `name` as deployed in OpenFaas</p>
</script>