Function verifyAmount

verifyAmount(
    lines: CartLine[],
    discount: Discount | null | undefined,
    claimedCents: number,
    opts?: { toleranceCents?: number },
): AmountVerdict
ANTI-TAMPERING: recompute the total from authoritative line prices + the discount and compare it to the amount the client claims (e.g. a PaymentIntent amount the browser posted). Reject any mismatch beyond toleranceCents (default 0 — money is exact). The server must call this before honoring any client-supplied amount.
Parameters
- lines: CartLine[]
- discount: Discount | null | undefined
- claimedCents: number
- opts: { toleranceCents?: number } = {}
Returns AmountVerdict
- Defined in packages/payments/src/pricing.ts:137