Dev Tools · 1h ago
NestJS Fraud Detection for Instant Payments: Inline Checks Before Settlement
Instant payment rails like FedNow and RTP require fraud detection to run inline before settlement, not after. A NestJS module with dedicated fraud rules enables fast, structured checks within the transaction path. This approach prevents both false blocks and missed suspicious transactions.
Meridian48 take
The article provides a solid architectural pattern for real-time fraud detection, but the real challenge is scaling these rules across millions of transactions without latency spikes.
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NestJS Real Time Fraud Detection, Catching Suspicious Transactions Before They Clear →
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