• Implement cache by Redis
• Caculate invalid cache for each request

Applied Swagger (include controllers and their DTO, req, res, params)

• Tag Controller
• Comment Controller
• Article Controller
• Bookmark Controller
• Category Controller
• Following Controller
• Image Controller
• User Controller
• Category Controller

• Article Service
• Bookmark Service
• Category Service
• Tag Service
• User Service
• Mail Service
• Upload Service
• Auth Service

• Each user can comment, reply another comment or +1/-1/+0 vote for each comment, reply
• Each Comment/reply can send with 1 image (size < 500Kb) as facebook
• Required login to comment/reply/vote
• Admin/Editor can delete comment/reply

• Support send mail by template
• Using Gmail SMTP server to sending mail
• Send confirmation mail when register

• Add api for resend confirmation registration email

• can be used to upload to server disk or cloud (aws, cloudinary, ..)
• Optimize, transform image before save
• Validation file:

1. Verify file extension
2. Verify header mine type
3. Verify Magic number (signature list: https://www.garykessler.net/library/file_sigs.html)
4. Check limit file size

• User can mark/cancel bookmark
• User can see marked articles (only published_global and published_link article)
• Require Login to clipping articles;
• ArticleDTO must show count_bookmark
• Having api to see who marked this article
• Author can't clipped owning articles