How to generate a payment link in QIWI Kassy?

Question

API

Good afternoon, Qiwi has a service for accepting payments via links. Where can you generate it. I can't figure out how to specify a date and time to expire this link.
Here is an example from qiwi api:

{
"amount": {
"currency": "RUB",
"value": 100.00
},
"comment": "Text comment",
"expirationDateTime": "2018-04-13T14:30:00+03:00", <- I'm interested in the moment!!!!
"customer": {},
"customFields": {}
}

The link should stop working after 15 minutes.
Please help, thanks.

Answer 1

what does the API say about this?