---
title: id
framework: nowplaying
role: symbol
role_heading: Instance Property
path: nowplaying/remotemediasessionattributes/id
---

# id

A stable, unique identifier for the session these attributes describe.

## Declaration

```swift
var id: String { get }
```

## Discussion

Discussion The system uses this value to match session lifecycle events (start, update, end) and to route push tokens to the correct session.