> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nevua.markets/llms.txt
> Use this file to discover all available pages before exploring further.

# Webhook Notification Payload

> Payload format for demo webhook notifications

When an event or market is opened or closed, all registered webhooks receive an HTTP POST with the following JSON body.

## Payload Schema

| Field              | Type      | Description                                               |
| ------------------ | --------- | --------------------------------------------------------- |
| `type`             | `string`  | Always `"event_status_notification"`                      |
| `eventId`          | `string`  | The event ID                                              |
| `eventTitle`       | `string`  | Event title                                               |
| `marketId`         | `string?` | Market ID (present when `eventStatusScope` is `"Market"`) |
| `marketQuestion`   | `string?` | Market question text                                      |
| `outcomes`         | `string?` | JSON-encoded outcomes array (present on close)            |
| `outcomePrices`    | `string?` | JSON-encoded outcome prices (present on close)            |
| `polymarketSlug`   | `string`  | Polymarket event slug                                     |
| `eventStatusScope` | `string`  | `"Event"` or `"Market"`                                   |
| `triggerType`      | `string`  | `"Open"` or `"Closed"`                                    |
| `detectedAt`       | `string`  | ISO 8601 timestamp of detection                           |

## Example Payload

```json theme={null}
{
  "type": "event_status_notification",
  "eventId": "123",
  "eventTitle": "Will X happen?",
  "marketId": "market-abc",
  "marketQuestion": "Will X happen by June?",
  "outcomes": "[\"Yes\", \"No\"]",
  "outcomePrices": "[0.65, 0.35]",
  "polymarketSlug": "will-x-happen",
  "eventStatusScope": "Market",
  "triggerType": "Closed",
  "detectedAt": "2026-03-01T14:30:00.000Z"
}
```

## Delivery Details

* **Method**: HTTP POST
* **Content-Type**: `application/json`
* **User-Agent**: `NevuaMarkets-Webhook/1.0`
* **Timeout**: 5 seconds per attempt
* **Retries**: Up to 3 attempts (1 second apart)

Your webhook endpoint should respond with a 2xx HTTP status code within 5 seconds to indicate successful receipt.