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Python Flask Exception Handling In A Secure Manner

by Tom McLaughlin , posted in Cloud Security, Exception Handling, Python, Flask, Python Flask Exception Handling

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In our last Python Flask blog post, we walked through building a simple application to take in a Threat Stack webhook and archive the alert to AWS S3. In this post, we’ll dive into Python exception handling and how to do it in a secure manner.

The code in the last post was written to be as simple and readable as possible. However, what happens if something goes wrong in our application? There’s no error or exception handling. If something goes wrong — for example, we hit a bug or receive bad data — there’s nothing we can do about it in the application. Instead of returning a parseable JSON response, the app will just spit a backtrace embedded in an HTML document back. The entity sending the request to our service is then left trying to figure out what may have gone wrong.

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Feb 9, 2017 2:02:31 PM

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