Programming using blockchain

Hey guys. Does anybody know a link or some kind of information about programming in the blockchain using Ravencoin? I've seen there is info about programming in Ethereum, etc., but since Ravencoin is not as popular yet.. I have some experience in web programming and some python and Java too, I noticed on GitHub that Ravencoin uses mostly C/C++ for the core wallet, but what about the blockchain? I saw a post about someone developing a python library but its outdated I believe.

Lets say I want to develop a website that sells some kind of product, and I want the customers to be able to pay for it using rvn, I believe that if the customer registers on my website's database and he then adds to the website's shopping cart his order, the system could tell the customer how much Ravencoins he would have to pay for his order and give him an address to send the rvns to. There would have to be some kind of API that connects to the ravencore wallet to check for incomming transactions and then it would compare between the database of clients on the website to see if it matches a registered customer and order.. or maybe just add the funds to that customer's account on the website? So he would get balance on it, and then, he could decide what to purchase..

My question is about the development of that API that connects the ravencore wallet with a server's database for example, on what language would it be? how could I achieve something like this? I can't find any info about it online.. I think this could also be achieved by using the ravencoin explorer api instead? Anyone thats a developer could point me out in the right direction please?