Challenge

The supplier had 6,000 SKUs across 12 categories. Their old catalog was a server-rendered application that took 4-6 seconds to load each page. Buyers in warehouses with poor Wi-Fi could not use it, and customer service was processing orders by phone that should have been self-service online.

Solution

We built a PWA catalog with client-side instant search across all 6,000 SKUs. The product database is cached on first visit, enabling sub-50ms search results. Returning customers get a one-tap re-order from their order history. Full offline browsing means the catalog works even with zero connectivity.

Search Performance

We used a lightweight client-side search index (under 300 KB compressed) that loads once and powers instant search. Results appear as the user types, with category filters and stock status.

Index Strategy

The search index is built at build time from the product database and served as a static JSON file. This avoids any server-side search infrastructure and keeps costs predictable.

Results

Order-entry time was cut by 55% as buyers could find and order products faster online than by phone. All pages achieved green Core Web Vitals. The offline catalog became a key differentiator — buyers could browse the full range in warehouses without worrying about Wi-Fi.