Send Billing Sample Emails

POST 
/api/email-templates/billing/send-samples

QA helper: simulate a Stripe webhook arrival for the target tenant.

For Stripe-shaped events (payload_type == "stripe_event"), the payload is dispatched through StripeWebhookProcessor.simulate_event, which runs the SAME handler chain production uses after signature verification. This means DB writes (subscription state, billing logs) AND email sends happen — same as a real Stripe webhook arrival. Signature verification is skipped because the payload comes from our own UI, not Stripe.

For internal events (LOW_BALANCE_WARNING, INSUFFICIENT_FUNDS, PAYMENT_METHOD_EXPIRING), there is no Stripe webhook to simulate, so we route them directly through SystemEmailService.emit() — same path WalletService.deduct_balance would take in production.

When event is provided, only that single event fires (with the optional context body field overriding the auto-built sample). When event is omitted, every sample fires.

Request​