Automating the purchase and payment of digital items through programming languages?

Question

PHP

A few years ago, I developed a site that resells digital goods to users from other sites.
There was a need to automate the purchase of digital goods on one large site.
This site does not provide any API or other purchase simplifications. In addition, there is also a complex generation of the purchase and payment for the order.
Chain Authorization on the site -> Product selection -> Quantity selection -> Specify an email address to receive the goods -> With all checks -> Select a payment system -> Agreement and go to the payment page -> Payment.
I tried to use programs for catching packages and watched, even when choosing the quantity of goods, some kind of IDs are generated, which are then transmitted, in general, everything is complicated ...
At the moment, I found a solution, this is a software for the Browser that records mouse and keyboard actions and repeats them, wrote on my Web Site a list of goods for purchase from where the bot takes the data, but this is not an option ...
Hearing that bots for CSGo roulettes and all sorts such actions are written in NodeJs, who can tell me what?
By the way, there is a certain amount of funds for the implementation of this feature.

Answer 1

the easiest way is from your bell tower - zennoposter
and so - scraping software + javascript emulator
in normal languages ​​it is with alternate performance

Answer 2

A mouse click can be emitted like this
. Well, then I think you already understood.