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Yes.Application/Admins/Articles/UpdateDraftCommandHandler.cs

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+namespace Yes.Application.Admins.Articles
+{
+    public record UpdateDraftCommand(
+        int Id, 
+        int CategoryId,
+        string Title,
+        string? Slug,
+        string Content,
+        string? CoverUrl,
+        string? Summary,
+        List<string> Tags
+    ) : IRequest<UpdateDraftCommandResponse>;
+
+    public record UpdateDraftCommandResponse(int Id);
+
+    public class UpdateDraftCommandHandler(BlogDbContext db, IIdentityContext identity) : IRequestHandler<UpdateDraftCommand, UpdateDraftCommandResponse>
+    {
+        private readonly BlogDbContext _db = db;
+		private readonly IIdentityContext _identity = identity;
+		public async Task<UpdateDraftCommandResponse> Handle(UpdateDraftCommand request, CancellationToken cancellationToken)
+        {
+            var userId = _identity.Id;
+
+            var author = await _db.Users.FindAsync(userId);
+
+            var authorObject = ValueObject<UserEntity>.Create(userId, author);
+
+            var category = await _db.Categories.FindAsync(request.CategoryId);
+
+            var categoryObject = ValueObject<CategoryEntity>.Create(request.CategoryId, category);
+
+            var article = await _db.Articles.FindAsync(request.Id);
+            if (article == null)
+            {
+                throw new ArticleNotExistsException(request.Id);
+            }
+            article.UpdateDraft(request.Title, request.Content, request.Summary, request.Tags, request.Slug, request.CoverUrl, authorObject, categoryObject);
+
+            _db.Articles.Update(article);
+
+            await _db.SaveChangesAsync();
+
+            return new UpdateDraftCommandResponse(request.Id);
+        }
+    }
+}