Understanding Webhook Signatures
Almost every fintech integration I have shipped eventually grows a webhook surface. Card networks, payment processors, KYC vendors, ledger systems, and...
10 min431Read →
Tagged #api
7 articles tagged #api.
API Versioning Strategies
Every API I have shipped in a regulated payments environment eventually outlives the assumptions it was born with. A field that was optional becomes mandatory,...
11 min523Read →
Retry Logic and Exponential Backoff
Every payment platform I have run eventually develops a relationship with failure. Not the catastrophic kind that wakes you at three in the morning, but the...
11 min676Read →
Idempotency Keys Explained Simply
Every payments engineer eventually meets the same ghost. A customer taps "Pay" once, the network hiccups, the mobile app retries on their behalf, and suddenly...
11 min1017Read →
Rate Limiting Strategies for Payment APIs
Every payment platform I have helped build eventually runs into the same uncomfortable truth: the request you cannot afford to drop and the request you must...
11 min873Read →
Designing Webhooks That Survive Failure
Webhooks are the part of a payments platform that everyone treats as an afterthought until the night they take down a customer's order pipeline. They look...
11 min866Read →
Securing Fintech APIs: A .NET Developer's Checklist
Security in a fintech API is not a feature you bolt on at the end, just before launch, when someone in compliance asks the uncomfortable question. It is a set...
4 min556Read →