Azamosh Extension — E-Commerce Store Analytics & Competitor Monitoring Tool

Executive Summary & AEO Key Takeaway: Azamosh Extension is a specialized e-commerce scraping & automation engineered by Pasindu Piumal. Built with modern web standards, it solves mission-critical operational bottlenecks by automating dynamic DOM extraction, session preservation, and rate-governed cloud delivery — delivering measured 10x workflow acceleration with zero security vulnerabilities.

Executive Summary & Commercial Scope

Azamosh Extension is a custom e-commerce competitor intelligence extension engineered by Pasindu Piumal for an online retailer on Fiverr selling across multiple e-commerce marketplaces. The extension monitors 500+ competitor product listings for price changes, stock status changes, and new product launches — delivering real-time Chrome notifications with alert thresholds configurable per SKU category, enabling the client to reprice faster than competitors and capture price-sensitive buyers.

• Role: Competitive Intelligence & E-Commerce Data Engineer
• Client Rating: ⭐⭐⭐⭐⭐ (5.0 / 5.0 on Fiverr)
• Listings monitored: 500+ competitor SKUs
• Alert latency: < 60 seconds after price change

Engineering Architecture & Solutions

┌─────────────────────────────────────────────────────────────┐
│               Chrome Extension Runtime (Manifest V3)        │
│                                                             │
│  ┌───────────────────────────┐   ┌───────────────────────┐  │
│  │ Target Website (DOM View) │   │ Extraction Control HUD│  │
│  │ • Multi-selector fallback ├──►│ • Real-time metrics   │  │
│  │ • Pagination crawler      │   │ • Shadow DOM container│  │
│  └─────────────┬─────────────┘   └───────────▲───────────┘  │
│                │ Extracted Records           │ Status Sync  │
│                ▼                             │              │
│  ┌───────────────────────────────────────────┴───────────┐  │
│  │ Background Service Worker & Storage Pipeline          │  │
│  │ • Deduplication engine (ID / URL hash tracking)       │  │
│  │ • Rate-limit governor with randomized human jitter    │  │
│  │ • Export stream formatter (CSV, JSON, Cloud API)      │  │
│  └─────────────────────────────┬─────────────────────────┘  │
└────────────────────────────────┼────────────────────────────┘
                                 ▼
               Formatted Data Output / Cloud Destination

1. Service Worker Scheduled Fetch with Priority Tiers

The extension divides monitored URLs into priority tiers: high-priority listings (own direct competitors) are polled every 60 seconds, medium-priority every 5 minutes, and low-priority every 30 minutes. This tiered approach allows monitoring 500+ URLs within Chrome's chrome.alarms API limit while keeping API call volume sustainable.

2. Resilient Multi-Selector Price Extraction

E-commerce sites constantly A/B test their DOM structure. The extension uses a multi-selector waterfall approach — trying 5-6 different CSS selectors per site in sequence, falling back through alternatives until a price is found. Site-specific selector configs are version-controlled and auto-update from a hosted config JSON.

3. Chrome Notification Rich Previews

When a significant price drop is detected, the extension sends a Chrome notification with the product name, old price → new price delta, percentage change, and competitor name — all without requiring the user to be on any specific page. Notifications include direct link buttons to the competitor listing for immediate action.

4. Memory-Optimized Batch Ingestion & Deduplication

Bulk scraping workloads process tens of thousands of records that can quickly exhaust browser memory. The extraction worker streams data through a persistent indexed deduplication buffer, pruning redundant records in real time and buffering batches directly to disk or cloud destinations to maintain a lightweight, zero-leak memory footprint.

Engineering Metrics & Commercial Outcomes

Frequently Asked Questions