> Portal Navigation:
> 
> - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version.
> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
> - Top-level index of all portals: https://dev.wix.com/docs/llms.txt
> - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt

## Resource: Bookings Events

## Article: Bookings Events

## Article Link: https://dev.wix.com/docs/sdk/host-modules/site/events/wix-bookings/bookings-events.md

## Article Content:

# Initiate Checkout

Triggered when the **Book Now** button is clicked.

### Properties

| Name                | Type     | Description                              |
|---------------------|----------|------------------------------------------|
| `contents`        | Array    | All products in cart.                     |
| `contents.id`     | text     | Product ID.                               |
| `contents.name`   | text     | Product name.                             |
| `contents.brand`  | text     | Business name.                            |
| `contents.category`| text    | Collection name.                          |
| `contents.variant`| text     | Selected choice from 1st product option.  |
| `contents.price`  | currency | Product price.                            |
| `contents.currency`| currency | Default site currency in ISO-4217 format. |
| `contents.quantity`| integer  | Quantity of product added to cart.        |
| `contents.dimension1`| text   | XXX                                      |
| `contents.dimension2`| text   | XXX                                      |
| `origin`          | text     | Wix App name, such as Stores or Bookings.     |
| `userId`          | text     | User ID.                                 |
<!-- | `isPremium`       | boolean  | Whether the Wix site is Premium          | -->
<!-- | `metaSiteId`      | text     | Wix site ID                              | -->

### Example
```JSON
{
  "contents": [{
    "brand": "",
    "category": "",
    "currency": undefined,
    "id": "8811abeb-58dc-4596-b731-174980819aaa",
    "name": undefined,
    "price": undefined,
    "variant": "PRIVATE",
    "length": 1
  }],
  "origin": "Bookings",
  "userId": "d35edd38-4684-4232-9d20-90caccce8cee"
}
```

## Custom Event: Select Date

```JSON
{
  "contents": [{
	  "id": "8811abeb-58dc-4596-b731-174980819aaa", 
	  "name": "test 1-on-1", 
	  "category": "", 
	  "variant": "PRIVATE", 
	  "price": 150, 
	  "..."
  }],
  "length": 1,
  "eventAction": "Select Date",
  "eventCategory": "Enhanced Ecommerce - Bookings",
  "origin": "Bookings"
}
```

<!-- ## StartPayment -->