md-pastebin

Built with Dark Factory v4 — autonomous AI software development pipeline

Markdown Pastebin — anonymous paste service with live preview.

Features

• Anonymous paste CRUD with nanoid identifiers
• Live markdown preview as you type
• Syntax highlighting for fenced code blocks
• View counter per paste
• 100KB content limit with frontend + backend enforcement
• Shareable URLs via hash routing (/#<id>)
• Copy link button for easy sharing

Tech Stack

• Express.js backend with in-memory store
• Vanilla JS SPA frontend
• Marked + highlight.js for markdown rendering
• Supertest + JSDOM for testing

Getting Started

git clone https://github.com/ibuzzardo/md-pastebin.git
cd md-pastebin
cp .env.example .env
npm install
npm run dev

Open http://localhost:3000.

API Routes

Method	Route	Description
GET	/api/health	Service health check
GET	/api/pastes	List paste summaries
POST	/api/pastes	Create a new paste
GET	/api/pastes/:id	Get paste (increments views)
PUT	/api/pastes/:id	Update paste content/title
DELETE	/api/pastes/:id	Delete paste

Architecture

• src/server/ — Express app, API routes, validation, in-memory store
• public/ — static SPA UI (index.html, app.js, markdown.js, styles.css)
• src/server/__tests__/ — API and limit tests (Supertest)
• public/__tests__/ — frontend behaviour and markdown preview tests (JSDOM)

Pipeline Stats

• Sprint cost: ~$1.20
• Coder passes: 1

License

MIT — see LICENSE