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E-Commerce Price Tracker
Web Scraper

E-Commerce Price Tracker

Automated price monitoring system that tracks products across multiple e-commerce platforms with intelligent alerting.

Overview

A comprehensive price monitoring solution that scrapes product prices from major e-commerce platforms like Amazon, eBay, and Walmart. The system runs on a scheduled basis, stores historical price data, and sends notifications when prices drop below user-defined thresholds.

My Role

Full-stack developer responsible for the entire system architecture, from scraping infrastructure to the user-facing dashboard.

Key Features

  • Monitors 10,000+ products across 5 major platforms
  • Handles anti-bot measures with rotating proxies and fingerprint spoofing
  • Real-time price alerts via email, SMS, and webhook integrations
  • Historical price charts and trend analysis
  • RESTful API for third-party integrations

Challenges

E-commerce sites employ sophisticated anti-bot measures including CAPTCHAs, rate limiting, and browser fingerprinting detection.

Solutions

Implemented a multi-layered approach using residential proxies, realistic browser fingerprints, and human-like interaction patterns. Added intelligent retry logic and request throttling.

Tech Stack

Node.jsPuppeteerPostgreSQLRedisReactDocker