DuunitoriScraper: A Cloud-Native Web Scraping Platform

MK
Automation
completed
FEATURED

DuunitoriScraper: A Cloud-Native Web Scraping Platform

A scalable, event-driven web scraping service built on Google Cloud Platform that automatically collects job listings from Finland's largest job portal, featuring a microservices architecture and real-time data processing.

Technologies Used

Python 3.11
FastAPI
Playwright
Google Cloud Platform
Cloud Run
Pub/Sub
Secret Manager
Docker
Pydantic
Asyncio
Cloud Build
Artifact Registry
Infrastructure as Code
Microservices
Event-Driven Architecture

The Challenge: Web Scraping That Breaks at Scale

You need to extract data from the web. It seems simple at first. You write a script. It works.

Then you try to scale it.

Your script gets blocked. The website’s structure changes, and your parser breaks. You need to run multiple jobs at once, and your single server crashes. You’ve spent more time debugging and firefighting than you have collecting actual data.

The real problem isn’t just writing a scraper. It’s building a resilient, scalable, production-grade platform that can handle the hostile, ever-changing environment of the modern web.

The Playbook: Build a Cloud-Native Scraping Factory

You don’t need a fragile script. You need an industrial-strength system.

This project delivers that system: a cloud-native, event-driven web scraping platform built on a microservices architecture. It’s designed from the ground up to be scalable, resilient, and fully automated—turning the brittle nature of web scraping into a reliable, enterprise-grade data pipeline.

Here’s the framework that makes it production-ready.

1. The Assembly Line: An Event-Driven Microservices Architecture

This isn’t a single, monolithic application. It’s a decoupled assembly line where each component does one job perfectly.

  • The API Gateway (FastAPI): A lightweight, high-performance service that validates incoming job requests and drops them into a queue. It’s the front door—secure and fast.
  • The Job Queue (Google Pub/Sub): This is the conveyor belt. It provides an asynchronous buffer, allowing the system to handle massive spikes in requests without breaking a sweat. If a scraper service is busy, the job simply waits its turn.
  • The Worker Fleet (Cloud Run + Playwright): This is the factory floor. A fleet of containerized, headless browser instances that pick up jobs from the queue. They are the ones doing the heavy lifting, and because they run on Cloud Run, they scale from zero to dozens of instances automatically.

2. The Ghost in the Machine: Production-Grade Browser Automation

Scraping a modern, JavaScript-heavy website requires more than just fetching HTML. You need to look like a human.

  • Advanced Anti-Detection: The system uses a battery of techniques to avoid getting blocked, including rotating user agents, disabling automation flags in the browser, and using human-like interaction patterns.
  • Resilience First: The Playwright-based scraper includes automatic retries with exponential backoff and is designed to handle dynamic content, ensuring it doesn’t break every time the target site’s layout changes.

3. The Foundation: Automated & Battle-Tested Infrastructure

This entire system is built for production. That means no manual deployments and no guessing games.

  • Infrastructure as Code (Terraform): Every piece of the cloud infrastructure—from the serverless functions to the message queues—is defined in code. This means we can deploy the entire platform to a new environment, perfectly, in minutes.
  • Automated CI/CD (Cloud Build): Every code change is automatically tested, built into a container, and deployed, ensuring a rapid and reliable development cycle.
  • The Proof: This system is so robust it seamlessly integrates with other tools like Clay, automatically validating scraped leads against Ideal Customer Profiles and routing them directly to CRM systems. It’s not just a data scraper; it’s the first step in a fully automated sales intelligence pipeline.

The Bottom Line

This project provides the definitive blueprint for building a serious, scalable web scraping platform. It moves beyond simple scripts and demonstrates how to use modern cloud-native principles—microservices, event-driven architecture, and IaC—to solve a complex, real-world data extraction problem.

It’s the difference between a tool that works today and a platform that works every day.