Grokking the System Design Interview, Volume II
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Google News: Detailed Component Design

Step 6: Detailed Component Design

6.1 News Ingestion and Deduplication Pipeline

Overview: The content ingestion subsystem is essentially the “web crawler” and parser for the aggregator. Its job is to gather fresh articles from all the external sources continuously and robustly.

  1. Source Discovery & Administration: The system maintains a catalog of sources – RSS feed URLs, API endpoints, sitemaps, etc. An admin interface can add new sources or categories

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