Hello friends who can give me an answer please, I would like to know how I can create a button that can convert my currencies because I am creating a multi-currency application, for example a USD balance, a DOP and HTG balance, I want to know how I can add a button so that my users can make conversions with an exchange rate that must be defined of course .
after I would like to know how I can give users access to make transfers to another account on the same application please, what is called a P2P you can help me with these two problems please?