https://tahseenkhan.dev/posts/Recent content in Posts on Tahseen KhanHugo -- gohugo.ioen-gbTue, 01 Oct 2024 00:00:00 +0000https://tahseenkhan.dev/posts/payment-gateways-in-react-native/Tue, 01 Oct 2024 00:00:00 +0000https://tahseenkhan.dev/posts/payment-gateways-in-react-native/<p>Payments are one of the trickiest parts of any mobile app. Over the past couple of years, I&rsquo;ve worked with multiple payment systems — Razorpay, PhonePe, Apple/Google In-App Purchases, UPI AutoPay subscriptions, and vendor split payments. Here&rsquo;s what I learned the hard way.</p> <h2 id="why-payments-are-hard-in-mobile">Why Payments Are Hard in Mobile</h2> <p>Unlike web, mobile apps have to deal with:</p> <ul> <li><strong>OS-level restrictions</strong> (especially iOS for in-app purchases)</li> <li><strong>Deep links and app switches</strong> (UPI apps like GPay, PhonePe, Paytm)</li> <li><strong>Async payment flows</strong> where success/failure comes via webhook, not response</li> <li><strong>Test mode vs live mode</strong> behaving very differently</li> </ul> <h2 id="razorpay--the-workhorse">Razorpay — The Workhorse</h2> <p>Razorpay is the go-to for Indian apps. The React Native SDK is solid but has some quirks.</p>