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