How to incorporate PayPal into an expo app?

So, I am in need to make an app that allows in-app purchases and I can’t use stripe, since it isn’t available in my country. While I am still looking for alternatives, including some exclusive to my country like PagSeguro and MercadoPago. Internationally, it seems like some people figured out how to integrate PayPal and React Native, but I’m having trouble doing the same, which integrates node.js with React. Is there any tool specific for expo that can ease incorporating PayPal with Expo? Any one has already tried that and succeded?