devnoteshub.hashnode.devHardening Your Costco Scraper: Detecting Soft Bans and Enforcing Data Quality with Pydantic When scraping high-value e-commerce targets like Costco, an HTTP 200 OK status code is often a lie. While many developers rely on status codes to trigger retries, Costco frequently employs soft bans. 17h ago·6 min read
devnoteshub.hashnode.devEnforcing Data Quality in Web Scrapers: Pydantic and the Dead Letter QueueBuilding a web scraper is often the easy part. The real challenge starts on day two, when the website changes its layout, a field that was always a number suddenly contains "Price on Request," or an u2d ago·12 min read
devnoteshub.hashnode.devCost-Efficient Scraping with a Hybrid ArchitectureWhen building web scrapers at scale, you often reach a crossroads. On one hand, HTTP clients like requests or httpx are fast, lightweight, and cheap to run. On the other hand, headless browsers like Playwright or Selenium are highly reliable and hand...Feb 10·6 min read
devnoteshub.hashnode.devHow to Build an Amazon "Share of Search" Dashboard with Python and StreamlitIn e-commerce, appearing on page one is the difference between a thriving brand and a ghost town. Historically, brands focused on price tracking to stay competitive, but price is only half the battle. If your product is priced perfectly but appears a...Feb 5·5 min read
devnoteshub.hashnode.devBuilding a 'SaaS Competitor Radar': From Scraper to Streamlit DashboardIn the fast-moving SaaS world, missing a competitor’s launch is a lost opportunity to adapt. While platforms like Product Hunt provide a firehose of new tools daily, manually checking them is a recipe for burnout. You need a way to filter the noise a...Feb 3·5 min read
