Superwall

getUserId()

Gets the current user ID that was set via identify().

Purpose

Retrieves the current user ID that was previously set using identify().

Signature

Future<String> getUserId()

Returns / State

Returns a Future<String> containing the current user ID, or an empty string if no user has been identified.

Usage

Basic usage:

final userId = await Superwall.shared.getUserId();
print('Current user ID: $userId');

Conditional logic:

Future<void> _checkUserStatus() async {
  final userId = await Superwall.shared.getUserId();
  
  if (userId.isNotEmpty) {
    print('User is logged in: $userId');
    // Show personalized content
    _loadUserSpecificData();
  } else {
    print('No user logged in');
    // Show login prompt
    _showLoginDialog();
  }
}

With user attributes:

Future<Map<String, dynamic>> _getCurrentUserInfo() async {
  final userId = await Superwall.shared.getUserId();
  final attributes = await Superwall.shared.getUserAttributes();
  
  return {
    'userId': userId,
    'attributes': attributes,
  };
}

How is this guide?

setUserAttributes()

Sets custom attributes for the current user that can be used in campaign targeting.

subscriptionStatus

A Stream that emits the user's current subscription status whenever it changes.

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