# 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 `ZoomSDKMeetingActionController` and `ZoomSDKMeetingActionControllerDelegate`.

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 macOS SDK, but can retrieve it through the REST API.

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

```swift
ZoomSDK.shared().getMeetingService()?.getMeetingActionController().delegate = self

extension ViewController: ZoomSDKMeetingActionControllerDelegate {
    func onUserJoin(_ array: [Any]) {
        guard let userIDList = array as? [UInt32] else { return }
        for userID in userIDList {
            let userInfo = ZoomSDK.shared().getMeetingService()?.getMeetingActionController().getUserByUserID(userID)
        }
    }
}
```

```objectivec
// In your .m file
@interface ZMSDKWindow : NSWindowController <ZoomSDKMeetingActionControllerDelegate> {

}

// In your .h file
[[[ZoomSDK sharedSDK] getMeetingService] getMeetingActionController].delegate = self;

- (void)onUserJoin:(NSArray *)array {
    if (!array)
        return;
    for (NSNumber* item in array) {
        unsigned int userID = [item unsignedIntValue];
        ZoomSDKUserInfo *userInfo = [[[[ZoomSDK sharedSDK] getMeetingService] getMeetingActionController] getUserByUserID: userID];
    }
}
```

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

Get the customer key.

```swift
userInfo?.getCustomerKey()
```

```objectivec
[userInfo getCustomerKey];
```

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

```swift
userInfo?.getAvatarPath()
```

```objectivec
[userInfo getAvatarPath];
```

Get the user ID.

```swift
userInfo?.getUserID()
```

```objectivec
[userInfo getUserID];
```

Get the username.

```swift
userInfo?.getUserName()
```

```objectivec
[userInfo getUserName];
```

Get the persistent ID.

```swift
userInfo?.getPersistentId()
```

```objectivec
[userInfo getPersistentId];
```

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

-   `UserRole_None` - No role has been assigned.
-   `UserRole_Host` - The host of the current meeting or webinar.
-   `UserRole_CoHost` - A co-host of the current meeting or webinar.
-   `UserRole_Panelist` - A panelist in the current meeting or webinar.
-   `UserRole_BreakoutRoom_Moderator` - The breakout room moderator.
-   `UserRole_Attendee` - An attendee of the current meeting or webinar.

Get the user's role in the current meeting.

```swift
userInfo?.getUserRole()
```

```objectivec
[userInfo getUserRole];
```

Determine whether a given user is the current user.

```swift
userInfo?.isMySelf()
```

```objectivec
[userInfo isMySelf];
```

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