### Notification that card details were successfully revealed through an embed.

#### event_type
- **Type:** const  
- **Enum:** required  
- **Description:** The type of event  
  - Allowed: `embed.viewed`

#### session_id
- **Type:** uuid  
- **Description:** The identifier shared by webhook events for the same embed session.

#### card_token
- **Type:** uuid  
- **Description:** The token of the card whose details were revealed.

#### account_token
- **Type:** uuid  
- **Description:** The token of the account associated with the card.

#### embed_type
- **Type:** string  
- **Enum:** required  
- **Description:** The type of card detail that was revealed  
  - Allowed: `PAN`, `CVV`, `EXP_MONTH`, `EXP_YEAR`

#### device_details
- **Type:** object  
- **Description:** Details about the request that revealed the card detail

#### Embed Device Details object

```json
{
  "event_type": "embed.viewed",
  "session_id": "4273ff06-3ce4-4092-8a1f-0340e33b6375",
  "card_token": "4df9a19c-9e1e-40d1-b27a-05e01152ee07",
  "account_token": "9a352526-4e69-469a-80b8-e22c71ba3cf0",
  "embed_type": "PAN",
  "device_details": {
    "ip_address": "192.0.2.1"
  }
}
```