Souptik Dasc/fintech-india-builders
Community Member • 2d ago
The Architecture of Instant UPI Payouts & Micro-Lending in Mumbai
Handling high-concurrency UPI payment callbacks during peak festive sales requires resilient queue architecture. We leverage Valkey/Redis distributed locks and AWS SQS dead-letter queues to ensure zero duplicate debit transactions during UPI gateway timeouts.
💰FintechMumbai, India
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