Social Media Platform Stack (React, GraphQL, PostgreSQL, Redis, Elasticsearch) overview

A social media and content-sharing platform architecture using React for the web client, GraphQL (via Yoga or Apollo) for a flexible query layer that lets mobile and web clients fetch exactly the data they need, and PostgreSQL for core relational data (users, posts, relationships). Redis handles feeds, caching, and real-time presence, while Elasticsearch powers full-text search over user-generated content. TypeScript provides end-to-end type safety across client and server. This stack scales horizontally but requires careful denormalization of social-graph queries and a robust moderation pipeline. The primary tradeoff is operational complexity — feed ranking, content moderation, and abuse prevention add significant infrastructure beyond the core data layer.