Wix Bookings events are fired in your site's backend when certain events occur in your site's Bookings application. You can write event handlers that react to these events. Event handler functions receive data that correspond to the event that has occurred. Use event handlers to create custom responses to bookings events.

To add a bookings event handler, add an events.js file to the Backend section of your site if one does not already exist. All event handler functions for your site are defined in this file.

Event handler functions are defined using the following pattern:

export function <wixAppName>_<eventName>(event) { }
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For example, an event handler that handles a new booking request looks like this:

export function wixBookings_onBookingRequestCreated(event) { }
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Note: Backend events don't work when previewing your site.

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