PayPal too is moving away from Java and onto JavaScript and NodeJS for use in their web application platform. PayPal began using NodeJS as a prototyping platform and when it proved extremely proficient and they decided try it out in production. PayPal’s first usage of NodeJS in production wasn’t a minor application; it was their account overview page which is one of the apps most trafficked features. As insurance, the PayPal team simultaneously developed the same “account overview” rebuild using Java and the results proved their hypothesis proved that the JavaScript team was able to build the product both faster and more efficiently. Since this transformation PayPal has since released an Open Source extension for ExpressJS called KrakenJS which can add an extra layer of security and scalability to your NodeJS Server.
