# Access in-meeting user information

<!-- WARNING: THIS FILE WAS AUTOGENERATED! DO NOT EDIT! -->

> The code on this page works with either the **default UI** or the **custom UI**.

After joining a meeting, access information for each meeting participant through `MobileRTCMeetingService` and `MobileRTCMeetingServiceDelegate`.

Use one of several different IDs, each serving its own purpose, to access user information.

-   Customer key - A developer-supplied identifier that may be passed in through the `MeetingOptions` instance used to join a meeting.
-   User ID - A nonpersistent, unique per-user identifier assigned by Zoom for the current meeting. If a user leaves and rejoins the same meeting, they get a new user ID assigned each time they join. This is also reassigned when switching between the main meeting and breakout rooms.
-   Persistent ID - A per-user identifier assigned by Zoom for the current meeting and all submeetings, such as breakout rooms. This per-user identifier will not be reassigned in the same meeting or submeeting, but users in different meetings may have the same ID value.
-   Participant ID - A unique per-user identifier assigned by Zoom to a user's account. This persists across all meetings for an account. You can't access this ID through the iOS SDK, but can retrieve it through the REST API.

When a user joins a meeting, get their `InMeetingUserInfo` object.

```swift
guard let meetingService = MobileRTC.shared().getMeetingService() else { return }
meetingService.delegate = self

extension ViewController: MobileRTCMeetingServiceDelegate {
    func onSinkMeetingUserJoin(_ userID: UInt) {
        guard let meetingService = MobileRTC.shared().getMeetingService() else { return }
        guard let userInfo = meetingService.userInfo(byID: userID) else { return }
    }
}
```

```objectivec
// In your .m file
@interface ViewController : UIViewController <MobileRTCMeetingServiceDelegate> {

}


// In your .h file
MobileRTCMeetingService *meetingService = [[MobileRTC sharedRTC] getMeetingService];
if (!meetingService) {
    return;
}
meetingService.delegate = self;

- (void)onSinkMeetingUserJoin:(NSUInteger)userID {
    MobileRTCMeetingService *meetingService = [[MobileRTC sharedRTC] getMeetingService];
    if (!meetingService) {
        return;
    }

    MobileRTCMeetingUserInfo *userInfo = [meetingService userInfoByID:userID];
    if (!userInfo) {
        return;
    }
}
```

Use the `InMeetingUserInfo` to access data specific to that user.

Get the customer key.

```swift
userInfo.customerKey
```

```objectivec
userInfo.customerKey;
```

Get the user's avatar picture path, if available.

```swift
userInfo.avatarPath
```

```objectivec
userInfo.avatarPath;
```

Get the user ID.

```swift
userInfo.userID
```

```objectivec
userInfo.userID;
```

Get the username.

```swift
userInfo.userName
```

```objectivec
userInfo.userName;
```

Get the persistent ID.

```swift
userInfo.persistentId
```

```objectivec
userInfo.persistentId;
```

Each user in a meeting or webinar has a role assigned to one of these values.

-   `MobileRTCUserRole_None` - No role has been assigned.
-   `MobileRTCUserRole_Host` - The host of the current meeting or webinar.
-   `MobileRTCUserRole_CoHost` - A co-host of the current meeting or webinar.
-   `MobileRTCUserRole_Panelist` - A panelist in the current meeting or webinar.
-   `MobileRTCUserRole_BreakoutRoom_Moderator` - The breakout room moderator.
-   `MobileRTCUserRole_Attendee` - An attendee of the current meeting or webinar.

Get the user's role in the current meeting.

```swift
userInfo.userRole
```

```objectivec
userInfo.userRole;
```

Determine whether a given user is the current user.

```swift
userInfo.isMySelf
```

```objectivec
userInfo.isMySelf;
```

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