Payment processing

[restyler]

I am seeking for a self-hosted solution to accept USDT on my website. The major use case is when customer pays from his binance wallet, so I need to solve the problem of identifying the customer in my system to put the paid money to his balance. While this problem is pretty much solved in Bitcoin (with HD wallets), the EVM situation is far more complicated. As far as I understand, the classical solution is to generate unique wallet for each customer "invoice" when the customer clicks "pay" on my website, I am wondering if such solution to manage multiple wallets and the logic of moving all the funds to single master wallet exists on the base of ethers.js ? Thanks!

[zemse]

In such use cases where sender address is not confirmed, you have two ways of dealing with this:

• Bit advanced: Unique deposit addresses for every user by calculating CREATE2 address in which salt is derived using user's identifier. Once user deposits at that address, the contract can later pull tokens by deploying a contract on that address.
• Pretty simple: You can ensure every concurrent customer has unique amount. e.g. if someone had to transfer you $100, you can instead have them transfer $0.001234 more or less. The amount is so less that the user or company would not care.