syntax = "proto3";

package tap.service;

message SessionKeyReq {
  uint64 user_id  = 1;
}

message SessionKeyResp {
  uint64 user_id  = 1;
  bytes session_key = 2;
  string expiration_time = 3;
}

service TAP {
  rpc RequestSessionKey(SessionKeyReq) returns (SessionKeyResp) {}
}