gameSessionId

An identifier for the game session that is unique across all regions to add a player to. The value is always a full ARN in the following format: For Home Region game session - arn:aws:gamelift:<home_region>::gamesession/<fleet ID>/<ID string>. For Remote Location game session - arn:aws:gamelift:<home_region>::gamesession/<fleet ID>/<location>/<ID string>.