Rasa fetch data

I have an ecommerce website and i have used rasa chatbot and passed API too. now when i click on a product, i want my chatbot to fetch that data through customData. how is that possible?

You can use JavaScript to send data to Rasa via a hidden payload as explained here:

Okay. But the thing is i want my website to send custom data to rasa. If i want to order products through chatbot, I want that to be stored in my website.