A hotel booking website confirms a reservation by performing five steps: write the booking record, send a confirmation email to the guest, notify the property of the new reservation, update the property's occupancy dashboard, and recompute pricing predictions for the affected room category. The booking confirmation page shown to the guest depends only on whether the booking record was written. Of these five steps, the most appropriate set to keep in the synchronous request path is:

Question

Accepted Answer

Only the booking record write, with the other four steps moved to a queue, because the confirmation page depends only on the booking record being written and the rest can be processed afterwards.

Answer

The booking record write and the email confirmation, because both steps directly involve the guest and should both complete before the confirmation page appears on the screen.

Answer

All five steps, because the guest's confirmation should not appear on the screen until every consequence of the booking has been recorded across the various downstream systems involved.

Answer

The booking record write, the property notification, and the dashboard update, because the property must be aware of the booking before any of the asynchronous follow-up tasks are allowed to begin.

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A hotel booking website confirms a reservation by performing five steps: write t...

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