XKit parsing function from Thinxtra tutorial

xkitParsingFunction.js

console.log('Loading event'); 
var AWS = require('aws-sdk');
var dynamodb = new AWS.DynamoDB();
var iotData = new AWS.IotData({endpoint: 'something.iot.ap-southeast-2.amazonaws.com'});

//make sure your replace your_AWS_endpoint_you_copied_earlier with the value you copied just before

exports.handler = function(event, context) {
    console.log("Request received:\n", JSON.stringify(event));
    console.log("Context received:\n", JSON.stringify(context));

    var tableName = event.device;
    var time = event.time;
    var Temperature = event.data.Temperature;
    var Pressure = event.data.Pressure;
    var Photo = event.data.Photo;
    var x_Accelerator = event.data.x_Accelerator;
    var y_Accelerator = event.data.y_Accelerator;
    var z_Accelerator = event.data.z_Accelerator;
    var Accelerator = event.data.Accelerator;

    function returnTime(value){
        return new Date((value)*1000 + 36000000); 
    }
    //replace 36000000 with the Unix time offset according to your timezone. Here it is set to Sydney time offset. 

    timedecode = '' +returnTime(time).toLocaleString();
    Temperature = Temperature/100;
    Pressure = Pressure*3;
    Photo = Photo/1000;
    x_Accelerator = x_Accelerator/250;
    y_Accelerator = y_Accelerator/250;
    z_Accelerator = z_Accelerator/250;
    Accelerator = Math.sqrt(x_Accelerator * x_Accelerator + y_Accelerator * y_Accelerator + z_Accelerator * z_Accelerator);

    var payloadObj={ "state": {
                    "reported": {
                            "device": event.device,
                            "time": event.time,
                            "timedecode": timedecode,
                            "snr": event.snr,
                            "avgSnr": event.avgSnr,
                            "station": event.station,
                            "Temperature": Temperature,
                            "Pressure": Pressure,
                            "Photo": Photo,
                            "x_Accelerator": x_Accelerator, 
                            "y_Accelerator": y_Accelerator, 
                            "z_Accelerator": z_Accelerator, 
                            "Accelerator": Accelerator
                                },
                            }
                };
        
    var paramsUpdate = {
        thingName : event.deviceId,
        payload : JSON.stringify(payloadObj)
    };
    
    //This function will Update the Device Shadow State
    iotData.updateThingShadow(paramsUpdate, function(err, data) {
      if (err){
        console.log("Error in updating the Thing Shadow");
        console.log(err, err.stack);
            }
    });

    //Next function will store the message in a dynamoDB table
    dynamodb.putItem({
            "TableName": event.deviceId,
            "Item": {
                "deviceId": {
                    "S": event.deviceId
                }, 
                "time": {
                    "S": event.time
                },
                "timedecode": {
                    "S": timedecode.toString()
                },
                "Temperature": {
                    "S": Temperature.toString()
                },
                "Pressure": {
                    "S": Pressure.toString()
                },
                "Photo": {
                    "S": Photo.toString()
                },
                "x_Accelerator": {
                    "S": x_Accelerator.toString()
                },
                "y_Accelerator": {
                    "S": y_Accelerator.toString()
                },
                "z_Accelerator": {
                    "S": z_Accelerator.toString()
                },
                "Accelerator": {
                    "S": Accelerator.toString()
                }
            }
        },
        function(err, data){
            if (err) {
                context.fail('ERROR: Dynamo failed: ' + err);
            } else {
                console.log('Dynamo Success: ' + JSON.stringify(data, null, ' '));
                context.succeed('SUCCESS');
            }
        }); 
};