Returns a paged list of delivery rows, or a single row by id.
| Name | Type | Description |
|---|---|---|
| id | int | Route parameter — delivery ID for single lookup. Optional. |
| event_type | string | Filter: exact event type. Optional. |
| status | string | Filter: delivery status. Optional. |
| subscription_id | string | Filter: subscription ID or "null". Optional. |
| page_num | int | Zero-based page index. Optional. |
| page_size | int | Records per page. Default 20. Optional. |
Single delivery array or list of delivery arrays.