Q: How to fetch items from Petra?
A: Since petra requires login to see the price, stock, and other information, you would need to add the following tag to the end of the URLs #skuopt::login:YOURPETRAUSERNAME::password:YOURPETRAPASSWORD with your login information replacing the capital letters in order to retrieve the items.
So for example, you would have to enter https://order.petra.com/no-logo-62-4-lf-compression-union-1-4-x-1-4-compression.html#skuopt::login:YOURPETRAUSERNAME::password:YOURPETRAPASSWORD
Then, you should be able to retrieve the item.