Endpoint
The Update Carwash Transaction Used endpoint allows to save the carwash transaction state as used or not used whitin the history of the user. It allows user to keep track of the carwash transaction they have used.
/user/history/carwash
On successful saving of the carwash transaction used state, the response contains an empty data object, a success field set to true, and a null value for error. This confirms that the carwash transaction used state has been saved without returning additional data.