At StackPulse we've been using gRPC for all of our backend (https://stackpulse.com/blog/grpc-in-practice-directory-struc...) and frontend (https://stackpulse.com/blog/grpc-web-using-grpc-in-your-fron...) service communications.

With the number of services rising and the frontend application needing to do dozens of gRPC calls per page, we decided to tackle the challenge of designing an API gateway solution for gRPC.

As with everything gRPC this is very much uncharted territory. While we are still a young startup we keep on taking these challenges because of all the benefits gRPC gives us in building our application.