What rpc keyword stands for

Question

I can see code like this:

service SomeService_v2 {
  rpc DoSomething(FirstRequest) returns (FirstResponse);
  rpc DoSomethingElse(SecondRequest) returns (SecondResponse);
}

What rpc keyword does?

Answer 1

It stands for Remote Procedure Call. It is used when you want to invoke a "procedure"/function in a remote server. The best example is the communication between front and backend. See here: https://en.wikipedia.org/wiki/Remote_procedure_call