What are the common error response status codes in Express.js?
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What are the common error response status codes in Express.js?
In Express.js, common error response status codes include 400 for Bad Request, 401 for Unauthorized, 403 for Forbidden, and 404 for Not Found.
Can you explain what a 404 status code means?
A 404 status code means that the requested resource could not be found on the server. It indicates that the server is reachable, but the specific resource is not available.
What about the 500 status code?
A 500 status code indicates an Internal Server Error. This means that the server encountered an unexpected condition that prevented it from fulfilling the request.
How can I handle these errors in my Express.js application?
You can handle errors in Express.js by using middleware. Define an error-handling middleware function that takes four arguments: err, req, res, and next. You can then send appropriate status codes and messages based on the error.
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