syntax = "proto3";

message ChatMessage {
    string from = 1;
    string msg = 2;
    string time = 3;
}

service ChatService {
    rpc join(User) returns (JoinResponse) {}
    rpc sendMsg(ChatMessage) returns (Empty) {}
    rpc receiveMsg(Empty) returns (stream ChatMessage) {}
    rpc getAllUsers(Empty) returns (UserList) {}
}