How to inform search engines about dynamic pages?

Hi all. Is there a website with a backend in Django (normal format, not SPA). Some pages, like, site.ru/catalog/ automatically generated (the template for these pages alone, on the basis of the received ID data is selected and added to the template). How to tell search engines about such pages?

For example, the item with ID 123456 (site.ru/catalog/123456).
March 19th 20 at 08:55
1 answer
March 19th 20 at 08:57
1) site Map
2) add in webmaster Yandex and Google
3) to Prescribe titles , and add the correct header h1
4) pagination.
5) customized CNC not site.ru/catalog/123456 but this form site.ru/catalog/123456/

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