counter.proto

counter.proto

syntax = "proto3";

package counter;

// Value contains a countername and its present value.
message Value {
  string countername = 1;
  int32 value = 2;
}

// Increment contains a countername and a value to increment it by.
// Assume a counter not defined will be incremented from 0 if not defined.
message Increment {
  string countername = 1;
  int32 increment = 2;
}

// Read represents a request for a Value for countername.
message Read {
  string countername = 1;
}

// ValueResponse can contain either a CounterValue or an error in case
// the counter is not defined.
message ValueResponse {
    Value countervalue = 1;
}

// Counter is a service that allows incrementing a counter and
// reading a counter.
service Counter {
  rpc IncrementCounter (Increment) returns (ValueResponse) {}
  rpc ReadCounter (Read) returns (ValueResponse) {}
}