Connect ethereum node

How to configure a node and connect it to a browser so that I can perform erc20 token transactions on my site between users? I want to realize the ability to exchange tokens between users, how is this done on centralized exchanges, what is needed for this? The internal engine is already written, it remains to connect the ability to exchange tokens

Hi @Ayur_pwnz are you looking for a solution for swapping tokens for an individual user as in one ERC20 to a different ERC20, or a solution for users to pay each other with an ERC20 token?