PaySession

amount
Type:
required
Properties: 2
created_at
Type: stringFormat: date-time
required

the date-time notation as defined by RFC 3339, section 5.6, for example, 2017-07-21T17:32:28Z
expires_at
Type: stringFormat: date-time
required

UTC. When the form stops accepting the payment.
id
Type: string
required

Session id. It is also the last part of url.
merchant_reference
Type:
min length:
1
max length:
100
required

Your id for the transaction, unique per merchant across payins, refunds, payouts and pay sessions. It is also the idempotency key of the create — the same reference with the same body returns the existing transaction, with a different body 409 merchant_reference_conflict. Never expires.
object
const:
pay_session
required
payin_id
Type: stringnullable
required

The payin created when the payer submitted the form. null until then; null after expires_at means the session expired unpaid.
url
Type: stringFormat: uri
required

The payment form. Open it for the payer as a full page, or in an iframe on a domain allowed for the shop.