Minimum withdrawals and fees, driven by settings
Compute the fee once, show the net before they confirm, and keep every threshold in the settings table so repricing is not a code change.
Tagged “withdrawals”
4 entries
An internal credit economy with an admin-set rate
Earn in integer credits, convert to coin only at withdrawal, and keep the rate in settings. Repricing the whole site becomes one field.
A payout queue that survives an API that says nothing
Auto-pay when the API answers, hold when it does not, and never refund on a timeout. The three-state queue that keeps a faucet solvent.
A withdrawal that cannot be paid twice
Debit on request, not on approval. The state machine that makes double payouts and phantom balances impossible.