5 // The Add service definition.
8 rpc Sum (SumRequest) returns (SumReply) {}
10 // Concatenates two strings
11 rpc Concat (ConcatRequest) returns (ConcatReply) {}
14 // The sum request contains two parameters.
20 // The sum response contains the result of the calculation.
26 // The Concat request contains two parameters.
27 message ConcatRequest {
32 // The Concat response contains the result of the concatenation.