The event trackers object specifies the types of events the bidder can request to be tracked in the bid response, and which types of tracking are available for each event type, and is included as an array in the request.
| Field | Scope | Type | Description |
|---|
| event | required | integer | Type of event available for tracking. See Event Types table below. |
| methods | required | array of integers | Array of the types of tracking available for the given event. See Event Tracking Methods table below. |
| Type ID | Name | Description |
|---|
| 1 | impression | Impression |
| 2 | viewable-mrc50 | Visible impression using MRC definition at 50% in view for 1 second |
| 3 | viewable-mrc100 | 100% in view for 1 second |
| 4 | viewable-video50 | Visible impression for video using MRC definition at 50% in view for 2 seconds |
| 500+ | exchange-specific | |
| Type ID | Name | Description |
|---|
| 1 | img | Image-pixel tracking - URL provided will be inserted as a 1x1 pixel at the time of the event. |
| 2 | js | Javascript-based tracking - URL provided will be inserted as a js tag at the time of the event. |
| 500+ | exchange-specific | |
