{"id":"cmranm0j200wnngovwfwl4uf8","slug":"express-vs-fastapi)","title":"Express vs FastAPI","shortAnswer":"Express is a lightweight Node.js web framework ideal for rapid prototyping and full-stack JavaScript development, while FastAPI is a modern Python framework optimized for building fast APIs with automatic documentation and built-in async support. 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FastAPI opportunities are growing rapidly in data science teams and microservices-focused companies, but Express still has significantly more positions available globally."},{"question":"Can I use Express for high-traffic production APIs?","answer":"Yes, but with caveats. Express powers many high-traffic sites (LinkedIn, Uber, Airbnb use Node.js), but it requires careful optimization, clustering across multiple processes, and load balancing to match FastAPI's native performance. You'll need to implement connection pooling, caching strategies, and likely run multiple Node.js instances. FastAPI achieves similar results with a single instance due to its async-first design."},{"question":"Does FastAPI require Python data science knowledge to use?","answer":"No. FastAPI is a general-purpose web framework that works for any API type—not just data science. You only need Python basics and understanding of async/await syntax. 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