delete https://api.wumdrop.com/v1/deliveries/:id
Allows to cancel a specific delivery.
Cancelling the delivery with id 123
curl -i -X DELETE -u YourApiKey: https://api.wumdrop.com/v1/deliveries/123
Note:
In order to cancel a delivery, it must be in a non-terminal state. (Terminal states are 'CANCELLED' or 'DELIVERED')