getToken method
Returns token from prefs (or null)
Implementation
Future<String?> getToken() async {
try {
final prefs = await SharedPreferences.getInstance();
final token = prefs.getString(_kTokenKey);
final savedAtMs = prefs.getInt(_kTokenSavedAtKey);
if (token == null || token.isEmpty || savedAtMs == null) return null;
final savedAt = DateTime.fromMillisecondsSinceEpoch(savedAtMs);
final age = DateTime.now().difference(savedAt);
if (age >= _kTokenExpiry) {
// expired
await clearAuth();
return null;
}
return token;
} catch (e) {
debugPrint?.call('AuthService.getToken: $e');
return null;
}
}