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Problem Statement
Design an RSS news feed service.
Core Functionality
The service must enable users to:
- Subscribe to various RSS sources.
- Ingest articles from these subscribed sources.
- Store relevant metadata for each ingested article.
- Serve a personalized news feed to each user based on their subscriptions.
Key Focus Areas
Candidates should pay particular attention to:
- Database table design: Detail the schema and relationships for storing user subscriptions, RSS sources, and article metadata.
- API design: Define the primary endpoints for user interactions (e.g., subscribing, unsubscribing, fetching feeds) and internal service communication (e.g., ingesting articles).
Deliverables
While diagrams are not required, the candidate must clearly explain:
- The main architectural components of the service.
- The storage model, including the rationale behind the chosen database design.
- The end-to-end request flows for key operations, such as article ingestion and personalized feed retrieval.
AI interview prep
Core dilemma
Balancing the efficient, scalable ingestion of a high volume of diverse RSS articles with the low-latency, personalized delivery of fresh content to millions of users, while managing storage costs and data freshness.
Mid-level signals3
Senior signals3
Red flags3
3 tradeoffs and 3 stress tests locked
Interview prep
Unlock the interviewer X-Ray rubric, tradeoff matrix, stress tests, clarifying questions, and key concepts.
Problem Statement
Design an RSS news feed service.
Core Functionality
The service must enable users to:
- Subscribe to various RSS sources.
- Ingest articles from these subscribed sources.
- Store relevant metadata for each ingested article.
- Serve a personalized news feed to each user based on their subscriptions.
Key Focus Areas
Candidates should pay particular attention to:
- Database table design: Detail the schema and relationships for storing user subscriptions, RSS sources, and article metadata.
- API design: Define the primary endpoints for user interactions (e.g., subscribing, unsubscribing, fetching feeds) and internal service communication (e.g., ingesting articles).
Deliverables
While diagrams are not required, the candidate must clearly explain:
- The main architectural components of the service.
- The storage model, including the rationale behind the chosen database design.
- The end-to-end request flows for key operations, such as article ingestion and personalized feed retrieval.