[erpellan]

Everything here looks awesome! Except gRPC... I thought gRPC was great until I had to use it in anger. JSON or CBOR for me!

https://reasonablypolymorphic.com/blog/protos-are-wrong/

[mfateev]

gRPC is not exposed to the Cadence users directly. They program against the client side library that completely hides the communication mechanism. And you are free to choose any object serialization mechanism. Currently JSON is the default wire encoding.