Pass fiatAmount, defaultFiatAmount, fiatCurrency, and defaultFiatCurrency
to the Transak widget URL so users see the transaction total immediately
without manual entry. Applied to both rcart payment sessions and rflows
onramp adapter.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add getTransakApiKey() and getTransakWebhookSecret() helpers that
resolve TRANSAK_API_KEY_STAGING or TRANSAK_API_KEY_PRODUCTION based
on TRANSAK_ENV, with fallback to legacy TRANSAK_API_KEY. All consumers
(rcart, rflows, transak-onramp) now use the shared helpers instead of
reading env vars directly.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Resolves T-INF-101 Access Denied when accessing payment links from
subdomains like demo.rspace.online. Adds extractRootDomain() helper
to shared/transak.ts, used by both rcart and rflows onramp adapters.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The Transak gateway session API consistently returns 401 despite valid
access tokens. Switch to direct URL construction (query params on
global.transak.com) which Transak still supports and is simpler.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>