5 min read ML Model Serving Service: Low Level Design An ML model serving service provides versioned, low-latency online inference alongside batch prediction, […] Read article
3 min read Overview An ML-powered content moderation service classifies user-submitted content (text, images, video) at scale, routes borderline cases to human reviewers, […] Read article
4 min read Bookmark Service: Core Schema The bookmark service persists saved URLs with rich metadata and organizational structure. Bookmark Table id BIGSERIAL […] Read article
4 min read Shipment Tracking Service: Low Level Design Core Data Model The tracking service maintains two primary tables: Shipment (one record per […] Read article
3 min read Graph-Based Recommendation Engine Model the recommendation problem as a graph: users and items are nodes, interactions are weighted edges. Graph […] Read article
4 min read ETA Calculator Service: Low Level Design Road Network Graph Schema Node (Intersection) ------------------- id BIGINT PK lat DOUBLE PRECISION lng […] Read article
4 min read CQRS Service: Low Level Design CQRS (Command Query Responsibility Segregation) separates the write model (commands) from the read model (queries), […] Read article
5 min read What Is a Watchlist Service? A watchlist service lets users curate personal lists of content items they intend to watch, […] Read article
5 min read What Is a Content Feed Ranking Service? A content feed ranking service orders a candidate set of content items for […] Read article
5 min read What Is the Device Authorization Flow? The OAuth 2.0 Device Authorization Grant (RFC 8628) enables input-constrained devices — smart TVs, […] Read article