Retrieves the current contact key associated with the device.
Syntax
Future<String?> getContactKey()
Returns
Future<String?>- Returns the contact key as a string, ornullif no contact key is set.
Example
String? contactKey = await SfmcSdk.getContactKey();
if (contactKey != null) {
print('Current contact key: $contactKey');
} else {
print('No contact key set');
}