idempotencyToken

Custom string that uniquely identifies the new game session request. This is useful for ensuring that game session requests with the same idempotency token are processed only once. Subsequent requests with the same string return the original GameSession object, with an updated status. Maximum token length is 48 characters. If provided, this string is included in the new game session's ID. A game session ARN has the following format: arn:aws:gamelift:<region>::gamesession/<fleet ID>/<custom ID string or idempotency token>. Idempotency tokens remain in use for 30 days after a game session has ended; game session objects are retained for this time period and then deleted.