Built a token-based trading platform from React frontend to PostgreSQL backend; implemented real-...Built a token-based trading platform from React frontend to PostgreSQL backend; implemented real-...
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Built a token-based trading platform from React frontend to PostgreSQL backend; implemented real-time token valuation engine, automated payout workflows and encrypted payment gateways with fraud prevention logic that reduced failed transaction rates across the platform.
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Nugraha's avatar
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@Ernest Uwaoma How did you keep the real-time token valuation engine consistent with PostgreSQL while automated payouts were running? That concurrency boundary sounds like a key part of the build.
Ernest's avatar
The only core challenge was making sure a payout never read a token value mid-update so i just did it by wrapping the valuation read and the payout debit in the same PostgreSQL transaction so both operations either committed together or rolled back together cuz If the token...
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