syntax = "proto3";

package churn.v1;

service Churn {
  rpc GetKey(GetKeyRequest) returns (GetKeyResponse);
  rpc SetKey(SetKeyRequest) returns (SetKeyResponse);
  rpc ListenEvents(ListenEventsRequest) returns (stream ListenEventsResponse);
}

message GetKeyRequest {
  string namespace = 1;
  optional string id = 2;
  string key = 3;
}
message GetKeyResponse {
  optional string value = 1;
}

message SetKeyRequest {
  string namespace = 1;
  optional string id = 2;
  string key = 3;
  string value = 4;
}
message SetKeyResponse {}

message ListenEventsRequest {
  string namespace = 1;
  optional string id = 2;
}
message ListenEventsResponse {
  string id = 1;
  string value = 2;
}