Build a POC Npm module which handles multiple payment gateways

Hi, Please note that, POC means proof of concept, and it does not mean complete coding. Please bid is your good at maintaining coding pattern - modular coding. Only Bid if you know these terms strongly, NodeJS, [login to view URL] , NPM Modules, etc. I need to create a Code Schema using Loopback.. where the user of my npm modules.. will set who is payment gateway provider.. and then all the functions of my npm . module will behave as per that. Say My modules supports PayPal, Stripe and braintree. 1. [login to view URL]("paypal"); 2. [login to view URL](); So when the 2nd function gets called, it should automatically understand that the provider is set to paypal..so internally it will call paypal respective api, and create customer in paypal. Again, we dont have to do all these perfectly just modular coding structure is needed, so that we can code in module pattern as per providers. And it will also be easy to add more providers to the module. Kind of same module I found but this is in Express ( [login to view URL] ) So will work in small small task format, and each thing will be defined by me only. and payment will on task basis.