How We Built a Real-Time Price Engine to Scrape 30+ E-commerce Sites

Handling real-time price comparisons across the Indian e-commerce ecosystem requires navigating heavy anti-bot protections, managing asynchronous cache-purging, and standardizing highly fragmented data structures.

In building Parash, our architecture had to be capable of instantly calculating complex banking logic—layering flat discounts, percentage caps, and card-specific reward tiers over live prices. We heavily utilized programmatic SEO to scale our reach, but the core challenge was maintaining absolute precision in the caching layer to ensure users saw the most accurate checkout price..." (Expand on the technical stack, database routing, or caching strategies).