proto file is created with a data structure definition to be used. Features such as server reflection and the gRPC command line tool exist to assist with binary Protobuf messages. In a nutshell, protobuf offers a more dense format (faster processing) and provides data schemas (enforcement of structure and better. Google developed it with the goal to provide a better way. Protocol buffers has been developed by Google and open sourced in 2008. 'Simple' is the primary reason why developers choose JSON.
7x faster than Jackson, but it is slower than DSL-JSON.
