There might be some problems with it, it is not perfect, however it is already open, not bound to Google and we used in internal projects, and multiple very lar

There might be some problems with it, it is not perfect, however it is already open, not bound to Google and we used in internal projects, and multiple very large projects also use it freely. I really like the strong typing and the ability to bi-directional streams and finally code generation for various languages make it very okay. Our main product was Go, but a part had to be Java and the integration was very easy because we used gRPC. Not that it cannot be achieved by other tools and frameworks, gRPC is already popular and well performing enough for most people.