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Fast, unopinionated, minimalist web framework for Node.js. Official site covers guides, API reference, middleware, and resources for v4 and v5.
Comprehensive guide to route paths, parameters, handlers, and response methods.
How to use application-level, router-level, error-handling, built-in, and third-party middleware.
Complete API documentation for Express v5, including application, request, response, and router objects.
Complete API documentation for Express v4, the long-term stable version widely used in production.