upload file to AWS S3
var AWS = require('aws-sdk');
AWS.config.update({accessKeyId: "ACCESS_KEY",secretAccessKey: 'SECRET_KEY'});
var s3bucket = new AWS.S3({params: {Bucket: 'BUCKET_NAME'}});
function uploadFileOnS3(fileName, fileData){
var params = {
Key: fileName,
Body: fileData,
};
s3bucket.upload(params, function (err, res) {
if(err)
console.log("Error in uploading file on s3 due to "+ err)
else
console.log("File successfully uploaded.")
});
}