Implementing proper error handling and exception management

We covered attacks with bad error and exception handling in Chapter 6. Proper error handling and exception management are critical for maintaining the security and stability of APIs. In Python, developers should use try-except blocks to handle exceptions gracefully and avoid exposing stack traces to the client. A common flaw is returning detailed error messages that reveal internal logic, which can be exploited by attackers. Instead, provide generic error messages and log detailed errors server-side. Do not forget to rotate and encrypt such logs. Also, restrict access to the logs only to people and applications that have legitimate reasons. The following code block shows two ways of handling exceptions:

# Here you expose stack traces. Bad!
try:
    user = User.get(user_id)
except Exception as e:
    return str(e)
# Here you treat and hide internal error details
try:
  &...