optimize query call

Controllers/NewsController.cs

@@ -34,7 +34,7 @@ namespace News_site.Controllers
 		{
 			try
 			{
-				List<Newspaper> newspapers = newsProvider.GetAll();
+				List<ExtendNewspaper> newspapers = newsProvider.GetAll();
 
 				if (newspapers == null)
 				{
@@ -47,16 +47,7 @@ namespace News_site.Controllers
 				return Ok(new { 
 					success = true, 
 					data = new { 
-						collection = result.Select(news => new
-						{
-							news.Id,
-							news.Image,
-							news.Title,
-							news.Categorylink,
-							news.CategorylinkNavigation,
-							news.Description,
-							news.CreatedAt
-						}).ToList(),
+						collection = result.ToList(),
 						total = result.Count(),
 						pagesize = sieveModel.PageSize, 
 						pageIndex = sieveModel.Page

Provider/CrawlDataProvider.cs

@@ -66,8 +66,17 @@ namespace News_site.Provider
 					string checkCategoryLinkElem = Regex.Match(newsData, @"<div class=""detail-cate(.*?)</a>", RegexOptions.Singleline).Value;
 					string checkCategoryLink = Regex.Match(checkCategoryLinkElem, @"href=""(.*?)""", RegexOptions.Singleline).Value.Replace("href=\"", "").Replace("\"", "");
 
-					bool isNewspaperCrawled = await db.Newspapers.AnyAsync(news => news.Title.Equals(newsTitle));
-					bool isCategoryExisted = await db.Categories.AnyAsync(category => category.Link.Equals(checkCategoryLink));
+					var allNews = await db.Newspapers.Select(news => new
+					{
+						news.Title
+					}).AsNoTracking().ToListAsync();
+					var allCagegories = await db.Categories.Select(category => new
+					{
+						category.Link
+					}).AsNoTracking().ToListAsync();
+
+					bool isNewspaperCrawled = allNews.Any(news => news.Title.Equals(newsTitle));
+					bool isCategoryExisted = allCagegories.Any(category => category.Link.Equals(checkCategoryLink));
 
 					if (!isNewspaperCrawled && isCategoryExisted)
 					{

Provider/NewsProvider.cs

@@ -10,9 +10,18 @@ namespace News_site.Provider
 {
 	public class NewsProvider : BaseProvider
 	{
-		public List<Newspaper> GetAll()
+		public List<ExtendNewspaper> GetAll()
 		{
-			var news = db.Newspapers.Include(news => news.CategorylinkNavigation).ToList();
+			var news = db.Newspapers.Include(news => news.CategorylinkNavigation).Select(news => new ExtendNewspaper
+			{
+				Id = news.Id,
+				Image = news.Image,
+				Title = news.Title,
+				Categorylink = news.Categorylink,
+				CategorylinkNavigation = news.CategorylinkNavigation,
+				Description = news.Description,
+				CreatedAt = news.CreatedAt
+			}).ToList();
 
 			return news;
 		}