Point of sale

Award points or stamps at the till and show the balance on the receipt.

Earn points from a sale

Pass the raw sale — Passtastic applies the card's configured accrual rate. Use from: "spend" for a currency amount, or from: "items" when your POS tracks earn-eligible items by key (e.g. one stamp per coffee, regardless of price). Omit from and pass a flat amount to add a specific number of points or stamps directly.

# Item-based (e.g. "one stamp per coffee")
curl -X POST https://api.passtastic.io/api/v1/customers/crm_10293/earn \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "stamps",
    "from": "items",
    "items": [{ "key": "coffee", "quantity": 1 }]
  }'

Or the spend-based form, for a card that earns points per currency unit spent:

curl -X POST https://api.passtastic.io/api/v1/customers/crm_10293/earn \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: sale-98213-earn" \
  -d '{
    "type": "points",
    "from": "spend",
    "spend": { "amount": 24.50, "currency": "EUR" },
    "note": "Order #4821"
  }'

Send an Idempotency-Key — a POS register can retry the same sale on a network blip, and the key stops it from being awarded twice.

Read a customer's balance

curl https://api.passtastic.io/api/v1/customers/crm_10293 \
  -H "X-Api-Key: YOUR_API_KEY"

{
  "externalCustomerId": "crm_10293",
  "passUserId": "66a1e2f3c9d4b5a6f7081920",
  "cardId": "64f1c2a9b8e4a2d1c0a1b2c3",
  "cardType": "point_card",
  "balance": { "points": 245 },
  "installed": true,
  "installUrl": "https://passtastic.io/get-pass/64f1c2a9b8e4a2d1c0a1b2c3"
}

balance shape depends on the card: { stamps } for stamp cards, { points } for point cards, { points, level } for level cards. Print it on the receipt so the customer sees the result of the sale they just made.

Units. Every balance is a whole number — 245 points, 6 stamps — with one exception: store credit (a card that tracks the merchant's own currency or a custom unit, e.g. "credits") can carry up to 2 decimals, e.g. { "points": 25.5 }. initialPoints on enroll and balanceCorrection/setPoints on adjust follow the same rule.