Custom Error Handling

The video tutorial covers error handling in Express applications, focusing on creating custom middleware to handle errors and return JSON responses instead of HTML. It explains middleware functions, their role in the request-response cycle, and how to implement custom error handlers for different status codes, including 404 errors. The tutorial also demonstrates refactoring error handlers into separate files for cleaner code organization. Finally, it discusses testing the error handlers and introduces the plan to integrate Redux for managing global state in the application.

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