Build a URL Shortener with QR Codes: Step-by-Step Tutorial
What We’re Building A URL shortener that automatically generates a QR code for every shortened link. Users paste a long URL, get a short link, and can download a QR code that points to it. We’ll use Node.js with Express for the backend and the ToolCenter QR Code API for generating QR codes. Prerequisites Node.js 18+ installed A ToolCenter key Basic knowledge of Express.js Project Setup mkdir url-shortener-qr cd url-shortener-qr npm init -y npm install express nanoid Project Structure u ├ ├ │ └ r ─ ─ ─ l ─ ─ ─ - s s p └ p h e u ─ a o r b ─ c r v l k t e i i a e r c n g n . / d e e j e . r s x j - . s q h o r t n / m l Step 1: Build the Server Create server.js: ...