Response (Protocol Concept)

Overview

Response is the server-to-client message sent immediately after a command, using the same cmd_id to link to the originating command.
It provides a Response::ResponseCode and optionally a Response::ResponseType to guide client handling.

Fields

• cmd_id (uint64, required) — Command ID this response corresponds to
• response_code (Response::ResponseCode, optional) — Outcome of the command

Response Codes

All possible outcome codes are defined in Response::ResponseCode

These describe the result of the command, e.g., success, failure, or special conditions like bans or registration requirements.

Response Types

Responses are routed according to Response::ResponseType

Each ResponseType corresponds to a high-level category, like JOIN_ROOM or DECK_UPLOAD.

Extensions

• Protobuf extensions from 100 to max are reserved for future use