Handling Express Errors

The video tutorial covers error handling in file uploads using Express and Multer. It begins by removing Multer middleware to simplify error handling, then demonstrates creating custom middleware to handle errors. The tutorial shows how to test error responses using Postman and improve them by sending JSON responses. Finally, it challenges viewers to apply these concepts to another route, ensuring robust error handling in file uploads.

What are the two main reasons a file upload might fail?

• Incorrect file type and file size too large

• File corruption and unsupported file format

• Network issues and server downtime

• User authentication failure and incorrect file path

What is the purpose of removing the multer middleware initially?

• To increase the upload speed

• To enhance security

• To allow multiple file uploads

• To simplify the exploration of error handling

What does the custom middleware function do in this setup?

• It logs all requests to the server

• It throws a new error for every request

• It compresses uploaded files

• It authenticates users

How does the error handling function signal that it is designed to handle errors?

• By including four specific arguments

• By sending an email notification

• By using a specific error code

• By logging errors to a file

What is the benefit of sending a JSON error response?

• It speeds up the upload process

• It is easier to read than HTML

• It reduces server load

• It allows the client to understand why the upload failed

What happens when an image is uploaded instead of a Word document?

• The image is automatically converted

• The server crashes

• A JSON error message is returned

• The server accepts the image

What is the next step after setting up error handling for file uploads?

• Adding authentication and associating images with users

• Allowing multiple file uploads

• Increasing the file size limit

• Improving server response time