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Yes.Application/Admins/Articles/ArticleService.cs

@@ -0,0 +1,33 @@
+
+
+
+namespace Yes.Application.Admins.Articles
+{
+    public class ArticleService(BlogDbContext db) : IArticleService
+    {
+        private readonly BlogDbContext _db = db;
+        public async Task<bool> IsSlugInUse(string slug)
+        {
+            return await _db.Articles.AnyAsync(x => x.Slug == slug);
+        }
+
+        public async Task<string> CreateUniqueSlug()
+        {
+            var times = 5;
+            var slug = UniqueShortIdGenerator.CreateUniqueShortString();
+            while (await IsSlugInUse(slug))
+            {
+                times--;
+                if (times <= 0)
+                {
+                    throw new GeneratorSlugException();
+                }
+				slug = UniqueShortIdGenerator.CreateUniqueShortString();
+			}
+
+
+            return slug;
+		}
+
+	}
+}