Instruction: Explain the process and considerations for handling file uploads in Flask.
Context: This question examines the candidate's ability to implement file upload functionality, including security and file management considerations.
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Firstly, Flask provides a straightforward mechanism for file uploads through the request object. However, the essence of handling uploads effectively lies in managing them securely and efficiently. My approach encapsulates validating file types, securing file names, setting appropriate storage locations, and limiting file sizes.
To begin with, when a user uploads a file, it's paramount to validate the file type. This is because allowing all types of files without any filtering can make the application vulnerable to security risks such as malicious scripts being uploaded....