TradeDash
Paper-trading platform with a real-money feel.
A paper-trading app built to feel like the real thing. Live quotes, virtual debit cards, a Gold membership tier with APY, and a Postgres schema that makes it structurally impossible to go negative.
- Live quotes every 15s via Finnhub with edge caching
- Duplicate trade submissions are safe — the same order won't execute twice
- Virtual debit cards that pass the Luhn check, with freeze and report-lost support
- Postgres triggers fire notifications for trades, transfers, and security events automatically
- Database-level constraints make a negative balance structurally impossible, not just handled in code

