[shubik22]

Uber was using Node for a good portion of their backend services back when I worked there (2016-2017). I’m not sure what they’re doing now, but when I left there was a project to move a lot of stuff to Go.

IIRC, the performance of Node was ok but clearly worse than Go/Java/etc. Uber was using JS not TS back then, but the real issue (at least when I started) was lack of a defined interface for the API/mobile app communication. That was eventually addressed by adopting a forked version of Thrift.

[lhorie]

It still uses Node.js as a glue between microservices if the project frontend is web (the eats website, for examples).

It also used Node for a very core part of the app, and it was Node 0.10 to boot, but my understanding is that that's on the way to deprecation.

Microservices themselves are all in go or java these days.