Make bot or extension, that adds a specific product to cart when released at sneaker stores

I need you to develop some software for me. I would like this software to be developed for [login to view URL] a bot or extension that puts a websites product in cart. Lots of sneaker stores are very hard to access when there is a lot of traffic. I need you to make a extension(for like chrome) or bot, that can automaticly can add a specific product to the cart. Search google for sneaker bot or "add sneakers to cart bot" and you will understand what we mean. Looking forward to hear from you :-)