How to implement one-time recharge codes in Node.js?

Question

JavaScript

I understand that you need to encode and then decode some data into a string?
Please tell me the packages for such tasks, thanks in advance for all the answers!

Answer 1

Create a repository for all one-time codes. When using the code, check that the code is in the vault, replenish the account with the required amount, then delete the code from the vault or mark that the code has already been used. To prevent iterating over codes, you can use bcypt .