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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.

#### Inherited from

[`Participant`](/docs/browser-sdk/v4/reference/participant).[`addressId$`](/docs/browser-sdk/v4/reference/participant#addressid-1)

## addressId

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

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

#### Inherited from

[`Participant`](/docs/browser-sdk/v4/reference/participant).[`addressId`](/docs/browser-sdk/v4/reference/participant#addressid)

## **Examples**

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