HFHussain Fakhruddininsultanbyte.com·10h ago · 8 min readMoney values in MENA apps: minor units, rounding and invoice QAMoney bugs usually look harmless in a pull request. A developer changes a decimal to an integer, adds Intl.NumberFormat, or rounds tax on each line so the invoice totals match the screen. The code pas00
EAElias Alrgeaiineliasalrgeaidev.hashnode.dev·16h ago · 4 min readHow a Timeout Can Charge Your Customer Twice (And How to Stop It in Laravel)A customer attempts a payment. The request safely reaches your server, and the transaction is performed successfully. Then, while the response is being sent back to the client, the connection drops. T00
UTUsman Tahir Qureshiinusmanqureshi.hashnode.dev·2d ago · 7 min readWhy Payment Systems Fail Differently Than Everything ElseI got paged once for something that, on paper, wasn't even a bug. Customers were completing checkout, and right after payment, the screen went white. No error message. No confirmation. Just blank. Sup00
CMChidozie Managwuinfreecodecamp.org·5d ago · 8 min readHow to Build Referral-Aware Split Payment Flows in DjangoWhen a product has a single checkout, payment logic is usually simple: charge the user, mark the order as paid, and move on. But once the business model includes a deposit now, a balance later, and re00
SMSyed Muhammad Aliindevstacked.hashnode.dev·6d ago · 21 min readStripe Refunds & Disputes in Next.js 16 (2026)Sooner or later, every Stripe integration hits the same wall: a customer wants their money back, or worse, their bank files a chargeback before they even email you. Most Stripe tutorials stop at "paym10
HRHugo Rusinhugorus.hashnode.dev·Aug 20 · 6 min readTwelve Things Users Do at the Payment Step of Your React Native AppAlmost none of the friction at a mobile payment step comes from the SDK you picked. It comes from how the checkout is presented around the SDK. Below are twelve things that break trust, each with a fi00
PPDF4meinpdf4me1.hashnode.dev·Aug 18 · 5 min readThe PDF4me Swiss QR Bill Endpoint: Fields, Reference Types, and the async Casing GotchaOriginally published on Dev.to, this is a reworked take with a different structure and framing. Sixty pages. That is roughly how long the Swiss Payment Standards specification runs for the Swiss QR-bi00
PEPaymos Engineeringinpaymos-engineering.hashnode.dev·Aug 16 · 7 min readDuplicate webhooks are the contract, not the bugA payment webhook is not a message. It is a delivery attempt. Paymos makes 11 of them per event: one initial call and ten retries, spaced 1m, 2m, 4m, 8m, 16m, 32m, 1h, 2h, 4h, and 8h, for a window of 00
GYGulshan Yadavinmrgulshanyadav.hashnode.dev·Aug 14 · 11 min readUPI Payment Gateway in Flutter (Razorpay) — The Complete 2026 GuideSo, in this article, I will be showing you how you can integrate UPI payments in your Flutter app using Razorpay. By the end, you will have a working payment flow — UPI, cards, and net banking — with 00
GYGulshan Yadavinmrgulshanyadav.hashnode.dev·Aug 13 · 8 min readPayPal Payment Gateway Integration in Flutter — 2026 RefreshThe original version of this article became my most-clapped story on Medium, so here is the 2026 refresh: the same practical walkthrough, updated for the PayPal Orders API v2, modern Flutter, and the 00
