Calls shown via the official C++ SDK (compiled into your UE module). Blueprint projects: same endpoints over FHttpModule/VaRest — see Getting Started.
Games::getGameData(client)
Reads the game-level JSON blob — version policy, name/room rules, client config. Public read with the API token.
Games::updateGameData(client, gameData)
Writes the game-level blob — private token, dedicated-server/admin side only.