AI Shopping LINE Bot for Japan Proxy Purchasing | Zeona Studio
Send a product URL in LINE — the bot scrapes it, lets you pick color & size, and handles checkout with live FX rates
Project overview
A LINE Official Account AI chatbot built for Japanese proxy shop "ROML", covering the entire proxy-purchase flow. Customers simply send a Japanese product URL in LINE; the bot scrapes the product, returns an interactive Flex Message card to pick color and size, and adds it to the cart in one tap. The LIFF checkout page shows a live JPY exchange rate, calculates international air freight, and adds the proxy fee — customers just fill in their details and submit.
Supports 7 Japanese brands (Uniqlo, GU, RS Taichi, Kushitani, FR2, BAPE, AAPE) with independent scrapers per brand. Orders are written to Supabase, synced to Google Sheets, and trigger a confirmation email. A Vercel Cron Job runs daily to purge expired orders and run scraper health checks.
Technical highlights: real-time inventory and price re-validation before checkout, Flex Message 50KB auto-split protection, live JPY rate fetching and caching from E.SUN Bank, and a modular Webhook architecture.
Key features
- Paste a URL → query product, pick color & size, place order — all in LINE
- Interactive Flex Message product cards (auto-split at 50KB)
- LIFF checkout: live FX rate + shipping + proxy fee, fully automated
- 7 Japanese brand scrapers (Uniqlo, BAPE, RS Taichi, and more)
- Orders saved to Supabase + synced to Google Sheets + confirmation email sent
- Vercel Cron Job: daily expired-order cleanup and scraper health monitoring
Tech stack
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