In-App Micro-Purchases with Hosted Checkout

Enable frictionless micro-transactions using hosted Payment Links with Apple Pay integration for small-ticket purchases

Summary

Enable micro-purchases by launching a hosted Payment Link or modal. Returning users leverage stored KYC/payment, improving completion for small tickets. Verify completion via REST before minting entitlements.

Problem → Solution mapping.

Pain	Capability	Mechanism
Small-ticket friction	Saved credentials	Widget remembers KYC/payment
Need speed	Hosted/embedded	Minimal front-end
Proof of payment	Webhooks + REST	Verify before issuing item

Architecture

Implementation steps

Create transfer

curl https://wallet.swipelux.com/v1/transfers \
  --request POST \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: sk_test_1234567890abcdef' \
  --data '{"onBehalfOf":"cus_cK69MttD5nAUAbud1B","amount":"2.49","source":{"paymentRail":"card","currency":"USD"},"destination":{"currency":"USDC"}}'

Open Payment Link

<a id="buy">Buy now</a>
<script>
  const settings = { apiKey: "pk_test_abc123" };
  document.getElementById('buy').href =
    `https://track.swipelux.com/?specificSettings=${encodeURIComponent(JSON.stringify(settings))}`;
</script>

Verify completion

curl https://wallet.swipelux.com/v1/transfers/tr_nEZHWur1pBSAKY7NlV \
  --header 'X-API-Key: sk_test_1234567890abcdef'

Webhooks

Validate signature; only grant items on REST-confirmed state:"completed".

UX choices

Use Apple Pay when available to compress payment time.

KPIs

Tap→pay conversion; time-to-complete (median, p95).

Limits & caveats

USD→USDC only. Avoid "webhook-only" fulfillment.

Troubleshooting

Handle declines via transfer.failed events; offer quick retry.

In-App Micro-Purchases with Hosted Checkout

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