Watchdog
Watchdog is a Node.js project to monitor product prices on eCommerce websites and be notified via Slack of price drops.
How it works
Puppeteer crawls the products in products.js and fetches the prices identified via the selectors in priceSelectors.js. A Slack notification is sent for every product.
A product is defined as a collection of variations, this way it's possible to monitor similar items (typically different colours of a product) in one go. This reduces the number of notifications sent.