Node.js API Masterclass with Express and MongoDB - Error Handler Middleware

The video tutorial explains how to implement custom error handling in an Express application. It covers the use of the 'next' function to pass errors in asynchronous functions, creating a custom error handler middleware, and integrating it into the application. The tutorial demonstrates logging errors, setting status codes, and returning JSON responses instead of HTML. Future enhancements include extending the core error class for more customization.

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