AWS Lambda function to be triggered by an IoT button click, sends a message to SQS consumed by a homebridge server

button-handler.js

/**
 * This is a sample Lambda function that sends a message to an SQS queue
 * when an IoT button is pressed. The message format is defined by the
 * homebridge-sqs plugin: https://www.npmjs.com/package/homebridge-sqs
 *
 * The following JSON template shows what is sent as the payload:
{
    "serialNumber": "GXXXXXXXXXXXXXXXXX",
    "batteryVoltage": "xxmV",
    "clickType": "SINGLE" | "DOUBLE" | "LONG"
}
 *
 * A "LONG" clickType is sent if the first press lasts longer than 1.5 seconds.
 * "SINGLE" and "DOUBLE" clickType payloads are sent for short clicks.
 *
 * Partly stolen from:
 * http://docs.aws.amazon.com/iot/latest/developerguide/iot-lambda-rule.html
 */

'use strict';

const AWS = require('aws-sdk');
const SQS = new AWS.SQS();

const QUEUE_URL = 'YOUR_QUEEUEUE_URL_HERE';
const SOURCE_NAME = "buttonNameSomething";

exports.handler = (event, context, callback) => {
    console.log('Received event:', event);

    var message = {
        "source": SOURCE_NAME,
        "message": event.clickType
    };

    var params = {
        MessageBody: JSON.stringify(message),
        QueueUrl: QUEUE_URL,
        DelaySeconds: 0
    };

    SQS.sendMessage(params, function(err, data){
        if(err){
            console.log(err, err.stack);
            callback(err);
            return;
        }else{
            console.log(data); //we did it im proud of us
        }
    });
};