Serverless Blog Comment System

Cloudflare has several free services can use. Cloudflare D1 let you build a small database on Cloudflare’s server. Cloudflare worker is a free compute resource, you can write several script to call api. The most important thing is these service are free. For a free tier account you can access 5GB space in D1 database, Workers provides 100,000 requests per day.

The comment system can devided to three different parts.

• Blog frontend
  • add comment framework with HTML
• Cloudflare worker
  • manage the api request from user
• Cloudflare D1
  • access the previous comments / save new comments

	+-------------------------------------------------------------+
	|                      USER / BROWSER                         |
	|  - Renders Blog Page                                        |
	|  - Submits new comment or fetches existing comments         |
	+------------------------------+------------------------------+
	                               |
	                               |  HTTPS (REST API Call)
	                               |  GET /POST /api/comments
	                               v
	+-------------------------------------------------------------+
	|               CLOUDFLARE WORKER (Serverless)                |
	|  - Routing & Logic Handler                                  |
	+------------------------------+------------------------------+
	                               |
	                               |  
	                               |  
	                               v
	+-------------------------------------------------------------+
	|               CLOUDFLARE D1 (Serverless SQLite)             |
	|  - Stores: id, post_slug, author, content, created_at       |
	+-------------------------------------------------------------+