Engineering Behind UPI 💳💻

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This overview of the Unified Payments Interface (UPI) covers its significance in India and the key stakeholders involved. It explains the technical architecture, including core components, API integrations, and security protocols. The data flow process is broken down to detail transaction steps, the role of encryption, and handling of potential failures. It also highlights the engineering challenges such as scalability, interoperability, and real-time processing. Finally, the future of UPI is...