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# addressId$

> Observable of the participant's address ID.

```ts
get addressId$(): Observable<string | undefined>
```

Observable of the participant's address ID.

## addressId

```ts
get addressId(): string | undefined
```

Address ID of this participant, or `undefined` if not available.

## **Examples**

```ts
participant.addressId$.subscribe((addressId) => {
  console.log('addressId:', addressId);
});
```