node-red/nodes/core/80-template.js

/**
 * Copyright 2013 IBM Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/

var RED = require(process.env.NODE_RED_HOME+"/red/red");

var mustache = require("mustache");
var util = require("util");
var fs = require('fs');

function TemplateNode(n) {
    RED.nodes.createNode(this,n);
    this.name = n.name;
    this.template = n.template;
    this.on("input", function(msg) {
            if (msg != null) {
                try {
                    msg.payload = mustache.render(this.template,msg)
                    this.send(msg);
                } catch(err) {
                    this.error(err.message);
                }
            }
    });
}

RED.nodes.registerType("template",TemplateNode);

RED.library.register("templates");