gRPC ( # REST ) but + Google Protocol Buffer ( binary )
RPC Definition:
Remote Procedure Call (RPC) is a protocol that one program can use to request a service from a program located in another computer on a network without having to understand the network's details.
A procedure call is also sometimes known as a function call or a subroutine call.
Tutorialspoint:
https://www.tutorialspoint.com/xml-rpc/xml_rpc_intro.htm
Using gRPC to Stream Data
It uses HTTP/2 for transport,
Protocol Buffers as the interface description language, and
provides features such as authentication,
bidirectional streaming and
flow control,
blocking or nonblocking bindings, and
cancellation and
timeouts