Healthcare · Workflow
A scheduler that holds the slot while the payment clears
Public booking against a provider's weekly availability, in the patient's timezone, with a timed hold so the slot and the Stripe payment never race.
Book a visit
Times in your timezone (EST)Visit type
Initial consult
60 min
Follow-up
30 min
Lab review
20 min
Slot reserved while you check out.
The story behind
Booking looks simple until money is attached to it. A patient picks a time and goes to pay. If the slot is not held during that minute, a second patient can book it, and now two people own 9:00 on Thursday.
The fix is a hold. Picking a slot creates a short-lived reservation with an expiry, tied to the Stripe checkout session. If the patient pays, the hold becomes an appointment. If they wander off, the hold expires and the slot returns. Behind it sits an overlap check and an optimistic-concurrency version, so two confirmations on the same slot cannot both win.
Business value
- Slots and payments stop racing. One booking, one owner.
- Availability is shown in the patient's timezone, not the provider's.
- Abandoned checkouts release the slot instead of freezing it.
Project scope
- Weekly availability templates, expanded across dates, timezone-correct.
- A booking hold tied to the Stripe checkout session, with an expiry.
- Overlap detection and optimistic concurrency on confirmation.
- Reschedule and cancel by tokenized link, with status guards.
Deliverables
- Public booking flow with timezone-correct slots.
- Slot-hold reservation tied to checkout.
- Appointment states: booked, fulfilled, cancelled, no-show.
- Reminders by email and SMS, plus calendar invites.
Tech stack
Frequently asked
What stops two people booking the same slot?
A hold while payment clears, plus an overlap check and an optimistic-concurrency version on confirmation. Two confirmations on one slot cannot both succeed.
Whose timezone do patients see?
Theirs. The provider's weekly template is stored in local time and projected into the booker's timezone.
Can patients reschedule without an account?
Yes, by a tokenized link, with guards so only a booked appointment can move.
Have a workflow that needs this?
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