Saving content to UserDefault

SaveUserDefault.m

#pragma mark - User Defaults

//Saves information on cache
+ (void)saveToUserDefault:(NSObject*)objectToSave withKey:(NSString*)key {
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    [userDefaults setObject:objectToSave forKey:key];
    [userDefaults synchronize];
}

//Retrieves information from cache
+ (NSObject*)retrieveFromUserDefaultWithKey:(NSString*)key {
    return [[NSUserDefaults standardUserDefaults] objectForKey:key];
}

//Clears all cache (used on logout for example)
+ (void)clearUserDefault {
    [AppUtils saveToUserDefault:nil withKey:API_TOKEN];
}