My guess is they have a front with Nodejs for mobile.twitter.com and behind that you have all their scala/jvm microservices. Recoding all their microservices wo

My guess is they have a front with Nodejs for mobile.twitter.com and behind that you have all their scala/jvm microservices. Recoding all their microservices would be way too expensive. I don't think they use Nodejs for their RESTful API but I am curious to see more about that. Uber uses Nodejs for their GPS API so who knows...