2.18.3. Response
| Field | Description | Type | 
| discount_id | Discount ID | integer | 
| date_start | Start date, format yyyy-mm-dd hh:mm:ss | string | 
| date_stop: | Expiration date, format yyyy-mm-dd hh:mm:ss | string | 
Error codes
| Field | Description | 
| 200 | Done | 
| 500 | HTTP code 500 with error message |