exports.handler = function(event, context, callback) {
console.log("Incoming Event: ", event);
const bucket = event.Records[0].s3.bucket.name;
const filename = decodeURIComponent(event.Records[0].s3.object.key.replace(/+/g, ' '));
const message = `File is uploaded in - ${bucket} -> ${filename}`;
console.log(message);
callback(null, message);
};