Opsai: Fix unsafe dictionary access in user profile funct 17246489472282184240

[mw-middleware-labs-sandbox]

Summary of Changes

This PR addresses a critical bug in the Flask application's /user/<username> endpoint, which previously resulted in KeyError exceptions and HTTP 500 errors when attempting to retrieve profiles for non-existent users. The fix implements defensive programming by using the .get() method for dictionary access and returns a proper HTTP 404 Not Found response with a clear error message, aligning the endpoint with REST API best practices and improving application robustness.

Checkpoints:

• Fix KeyError in User Profile Endpoint: Replaced direct dictionary access user_data[username] with user_data.get(username) to safely retrieve user data.
• Implement Proper Error Handling: Modified the conditional check to return a jsonify({"error": "User not found"}), 404 response when a user is not found, preventing unhandled exceptions and providing a clear client-side error.

🔗 Related Issue

View the Root Cause Analysis on OpsAI: Link

📁 Files Modified

Directory: flask

• flask/app.py: Fix Unsafe Dictionary Access in user_profile Function

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Target Branch: master
Source Branch: OpsAI/fix-unsafe-dictionary-access-in-user-profile-funct-17246489472282184240

This PR was automatically generated by OpsAI on behalf of Sandbox (sandbox@middleware.io)