public async Task <Notification[]> GetByIdsAsync(string[] ids, string responseGroup = null)
{
var cacheKey = CacheKey.With(GetType(), nameof(GetByIdsAsync), string.Join("-", ids), responseGroup);
var result = await _platformMemoryCache.GetOrCreateExclusiveAsync(cacheKey, async (cacheEntry) =>
{
//It is so important to generate change tokens for all ids even for not existing objects to prevent an issue
//with caching of empty results for non - existing objects that have the infinitive lifetime in the cache
//and future unavailability to create objects with these ids.
cacheEntry.AddExpirationToken(NotificationCacheRegion.CreateChangeToken(ids));
using (var repository = _repositoryFactory())
{
//Optimize performance and CPU usage
repository.DisableChangesTracking();
var entities = await repository.GetByIdsAsync(ids, responseGroup);
var notifications = entities.Select(n => n.ToModel(CreateNotification(n.Type, new UnregisteredNotification()))).ToArray();
//Load predefined notifications templates
if (EnumUtility.SafeParseFlags(responseGroup, NotificationResponseGroup.Full).HasFlag(NotificationResponseGroup.WithTemplates))
{
foreach (var notification in notifications)
{
var predefinedTemplates = _templateLoader.LoadTemplates(notification).ToList();
if (notification.Templates != null)
{
notification.Templates.AddRange(predefinedTemplates);
}
else
{
notification.Templates = predefinedTemplates;
}
}
}
return(notifications);
}
});
return(result.Select(x => x.Clone() as Notification).ToArray());
}