node-red-contrib-snap4city-user/get-access-token.js

Nodes for Snap4city project, targeted to standard user (no developer)

/* NODE-RED-CONTRIB-SNAP4CITY-USER
   Copyright (C) 2018 DISIT Lab http://www.disit.org - University of Florence

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Affero General Public License as
   published by the Free Software Foundation, either version 3 of the
   License, or (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Affero General Public License for more details.

   You should have received a copy of the GNU Affero General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
module.exports = function (RED) {

    function GetAccessToken(config) {
        RED.nodes.createNode(this, config);
        var node = this;
        var s4cUtility = require("./snap4city-utility.js");
        const logger = s4cUtility.getLogger(RED, node);
        node.on('input', function (msg) {
            node.s4cAuth = RED.nodes.getNode(config.authentication);
            const uid = s4cUtility.retrieveAppID(RED);
            var inPayload = msg.payload;
            var accessToken = "";
            accessToken = s4cUtility.retrieveAccessToken(RED, node, config.authentication, uid);
            if (typeof accessToken != "undefined" && accessToken != "") {
                msg.payload=accessToken;
				node.send(msg);   
            } else {
                node.error("Authentication Problem");
            }
        });
    }
    RED.nodes.registerType("get-access-token", GetAccessToken);
}