hello.proto

syntax = "proto3";
option go_package = "./;types";

service Hello {
    rpc CreateRoom (CreateRoomRequest) returns (Room) {}
    // signalling streamが切れると、そのユーザーはRoomからも抜けた扱いになる
    rpc Signalling (stream SendSignallingMessage) returns (stream RecvSignallingMessage) {}
}

message CreateRoomRequest {}

message SendSignallingMessage {
    oneof body {
        SelfIntroduceMessage self_intro = 1;
        RoomInfoRequest room_info_request = 2;
        SendSdpMessage sdp_message = 3;
        SendIceCandidateMessage ice_message = 4;
    }
}

message RecvSignallingMessage {
    oneof body {
        SelfIntroduceResult self_intro_result = 1;
        Room room_info_response = 2;
        RecvSdpMessage sdp_message = 3;
        RecvIceCandidateMessage ice_message = 4;
    }
}

message RoomInfoRequest {}

message Room {
    int32 room_id = 1;
    repeated string joined_user_ids = 2;
}

message SelfIntroduceMessage {
    string my_id = 1;
    int32 room_id = 2;
}

message SelfIntroduceResult {
    bool ok = 1;
    string error_message = 2;
}

message SendSdpMessage {
    string session_description = 1;
    string to_id = 3;
}

message SendIceCandidateMessage {
    string ice_candidate = 1;
    string to_id = 3;
}

message RecvSdpMessage {
    string session_description = 1;
    string from_id = 2;
    string to_id = 3;
}

message RecvIceCandidateMessage {
    string ice_candidate = 1;
    string from_id = 2;
    string to_id = 3;
}