Wordpress ecommerce digital download dynamic products
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Hi Can someone tell me how can I have dynamic digital products in Wordpress E commerce please?

i.e, I have a database of information from which I can generate reports. I want the user to be able to search for keywords, using which I can search database and generate report. The cost of the report is generated from DB dynamically. Now I display the result to the user and I want to be able to add this product to the cart.

Thank you.