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

# Player (JSON)

> Player (JSON)

Contains data for a player in a game session.

## Player

The Player object has the following specification.

| Member | Type | Description |
| - | - | - |
| customData | array of 8-bit unsigned integer | 1024 bytes of Base64 encoded game-specific player data. This value is opaque to the server. |
| gamertag | string | Gamertag—a maximum of 15 characters—of the player. The client should use this value in the UI when identifying the player. |
| isCurrentlyInSession | Boolean value | Indicates if the player is currently in the session or left the session. |
| seatIndex | 32-bit signed integer | The index of the player in the session. |
| xuid | 64-bit unsigned integer | The XBOX User ID (XUID) of the player. |

## Sample JSON syntax

```json theme={null}
{
    "xuid": 2533274790412952,
    "gamertag":"MyTestUser",
    "seatindex": 3
    "customData":"AIHJ2?iE?/jiKE!l5S=T..."
    "isCurrentlyInSession":"true"
}
    
```

## See also

##### Parent

[JavaScript Object Notation (JSON) Object Reference](https://docs.xbox.com/reference/live/rest/json/atoc-xboxlivews-reference-json.md)

##### Reference

[GameSession (JSON)](https://docs.xbox.com/reference/live/rest/json/json-gamesession.md)


## Related topics

- [GameSession (JSON)](https://docs.xbox.com/reference/live/rest/json/json-gamesession.md)
- [User (JSON)](https://docs.xbox.com/reference/live/rest/json/json-user.md)
- [Feedback (JSON)](https://docs.xbox.com/reference/live/rest/json/json-feedback.md)
- [Reward (JSON)](https://docs.xbox.com/reference/live/rest/json/json-reward.md)
- [MatchTicket (JSON)](https://docs.xbox.com/reference/live/rest/json/json-matchticket.md)