What is the recommended project structure for an Express API?

Express basics and middleware · Freshers and experienced

Model answer

Separate concerns: routes (URL mapping), controllers (request handling), services (business logic), models (database schemas), middleware, and config. Keep app creation separate from server start so tests can import the app. The exact folders matter less than keeping responsibilities clear.

Learn this topic

Express Middleware Explained: next(), Logging and express.json() in the course Node.js and Express: Build a Back End API from Scratch.

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