Request for a form description with pre-filled field values

Request format

The request is for re-displaying the payment form to the user with the field values already filled in, to make it easier to repeat previously completed operations.

To request a form description with pre-filled fields, use the POST method at the same address as for requesting the payment form description:

Address of the method:<pattern_id>

Сontent-Type: application/x-www-form-urlencoded, UTF-8 encoded.

The request must contain a list of form field values, in the name-value format.

Note. The response to this method must not be cached, since its contents depend on the request arguments.
Header Description
Accept-Language The code of the language that the client wants to get the form description in, conforming to

RFC-5646: Tags for Identifying Languages

IANA Language Subtag Registry

Possible values:

  • ru — Russian
  • en — English

By default: Russian.


Indicates client support for traffic compression. Supported values:

By default: file compression is not used.

The method response is similar to the response to the request for the payment form description.

The form fields are pre-filled with values from the request parameters.

Request example
POST /api/showcase/5506 HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Content-Length: 28
Accept-Language: ru
Accept-Encoding: gzip