We have a system of several applications that communicate with each other using gRPC/protocol buffers and, due to some new requirements, need to add a level of integrity verification to a subset of the messages.

We have a system of several applications that communicate with each other using gRPC/protocol buffers and, due to some new requirements, need to add a level of integrity verification to a subset of the messages.

I am new to gRPC and would like to do input validation of a gRPC service.
The testing would be carried out on a running server, and I would use grpcurl to invoke each of the method with dummy input within a JSON filed.

According to this answer: stream reduces the maximum amount of memory required to process each message