Build a Multi‑Site Competitor Price Monitor in 10 Minutes (No Selectors, No Selenium)

说明与用途

使用 Scraping AI、Slack 通知和免费 GitHub Actions，快速构建多站点竞争对手价格监控，10 分钟完成。

问题

Custom scrapers for each e‑commerce site are fragile, requiring constant selector maintenance and complex parsing for price formats.

结果

Monitors 50 products across 3 retailers daily for ~$6.60/month, zero‑cost cron via GitHub Actions, and real‑time Slack alerts for price drops.

工作流

• 1. Install Scraping AI SDK: pip install scraping‑ai
• 2. Create SQLite DB for price history
• 3. Define monitor_url function that calls Scraping AI with a schema
• 4. Compare current price to last stored price
• 5. If price dropped, format alert and POST to Slack webhook
• 6. Log new price to database
• 7. Schedule script on GitHub Actions cron

证据

Use Scraping AI to extract normalized numeric pricing and stock status with a single API call.

来源

Zero‑Cost Cron: Runs automatically on free GitHub Actions compute.

来源