public void SyncWithServerForAdd([FromBody] List <string> result)
{
List <Book> addBooks = JsonSerializer.Deserialize <List <Book> >(result[0]);
List <Author> addAuthors = JsonSerializer.Deserialize <List <Author> >(result[1]);
List <Category> addCategories = JsonSerializer.Deserialize <List <Category> >(result[2]);
List <Publisher> addPublishers = JsonSerializer.Deserialize <List <Publisher> >(result[3]);
List <Language> addLanguages = JsonSerializer.Deserialize <List <Language> >(result[4]);
foreach (var el in addBooks)
{
CacheItem cacheItem = new CacheItem
{
Book = el,
Author = addAuthors.FirstOrDefault(p => p.Id == el.AuthorId),
Category = addCategories.FirstOrDefault(p => p.Id == el.CategoryId),
Publisher = addPublishers.FirstOrDefault(p => p.Id == el.PublisherId),
Language = addLanguages.FirstOrDefault(p => p.Id == el.LanguageId),
};
_cache.AddCacheItem(cacheItem);
}
}