How to parse the second page from the Okay store catalog?

Question

PHP

On the site of the hypermarket Okay, there is a pagination of the catalog, switching occurs using Ajax. Tell me how it is possible to parse the second page and more using php. The parser in the basic version takes data from the first page only.
Thank you.

Example: here

Answer 1

The request body contains pageSize and beginIndex parameters .
Formula to get the desired page
pageSize = 36
beginIndex = pageSize * pageNumber

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