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Improve checkout process with error handling and inventory management #23

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Improve checkout process with error handling and inventory management #23

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Fixes REACT-5FV. The issue was that: Backend inventory check failed for product ID 4 (Botana Voice) as requested quantity (3) exceeded available stock (2), causing an unhandled exception and 500 error.

  • Implemented robust error handling for checkout process, including insufficient inventory and invalid input.
  • Added InsufficientInventoryError exception for better error management.
  • Modified process_order to handle cart items and quantities separately, validating product IDs and quantities.
  • Updated checkout route to return JSON responses with appropriate HTTP status codes for success and errors.
  • Enhanced inventory management to prevent overselling and provide informative error messages.
  • Added Sentry error capture for unexpected exceptions during checkout.

This fix was generated by Seer in Sentry, triggered automatically. 👁️ Run ID: 61612

Not quite right? Click here to continue debugging with Seer.

github-advanced-security[bot]
github-advanced-security bot found potential problems Jun 24, 2025
View reviewed changes
app.py
Comment on lines +91 to +95
return jsonify({
"error": "InsufficientInventory",
"message": str(e),
"product_id": e.product_id
}), 409

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Code scanning / CodeQL

Information exposure through an exception Medium

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flows to this location and may be exposed to an external user.

Copilot Autofix

AI 5 days ago

To fix the issue, the exception messages should not be directly included in the response sent to the client. Instead, a generic error message should be returned, and the detailed exception message should be logged for internal use. This ensures that sensitive information is not exposed to external users while still allowing developers to debug issues using the logs.

The changes required are:

  1. Replace the str(e) usage in the JSON response with a generic error message.
  2. Log the exception message internally using sentry_sdk.capture_exception(e) or another logging mechanism.
Suggested changeset 1
app.py

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/app.py b/app.py
--- a/app.py
+++ b/app.py
@@ -90,5 +90,6 @@
     except InsufficientInventoryError as e:
+        sentry_sdk.capture_exception(e)
         return jsonify({
             "error": "InsufficientInventory",
-            "message": str(e),
+            "message": "Not enough inventory for the requested product.",
             "product_id": e.product_id
@@ -96,3 +97,4 @@
     except ValueError as e:
-        return jsonify({"error": "BadRequest", "message": str(e)}), 400
+        sentry_sdk.capture_exception(e)
+        return jsonify({"error": "BadRequest", "message": "Invalid request data."}), 400
     except Exception as e:
EOF
@@ -90,5 +90,6 @@
except InsufficientInventoryError as e:
sentry_sdk.capture_exception(e)
return jsonify({
"error": "InsufficientInventory",
"message": str(e),
"message": "Not enough inventory for the requested product.",
"product_id": e.product_id
@@ -96,3 +97,4 @@
except ValueError as e:
return jsonify({"error": "BadRequest", "message": str(e)}), 400
sentry_sdk.capture_exception(e)
return jsonify({"error": "BadRequest", "message": "Invalid request data."}), 400
except Exception as e:
Copilot is powered by AI and may make mistakes. Always verify output.
app.py
"product_id": e.product_id
}), 409
except ValueError as e:
return jsonify({"error": "BadRequest", "message": str(e)}), 400

Check warning

Code scanning / CodeQL

Information exposure through an exception Medium

Stack trace information
Loading
flows to this location and may be exposed to an external user.

Copilot Autofix

AI 5 days ago

To fix the issue, we will replace the direct use of str(e) in the response with a sanitized and generic error message. This ensures that no sensitive information is exposed to the user. Specifically:

  1. Replace the str(e) in the ValueError handler with a generic message like "Invalid input provided.".
  2. Log the original exception message (str(e)) for debugging purposes using sentry_sdk.capture_exception(e) or another logging mechanism.

This change will ensure that sensitive information is not exposed to the user while still allowing developers to debug the issue using the logs.

Suggested changeset 1
app.py

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/app.py b/app.py
--- a/app.py
+++ b/app.py
@@ -96,3 +96,4 @@
     except ValueError as e:
-        return jsonify({"error": "BadRequest", "message": str(e)}), 400
+        sentry_sdk.capture_exception(e)  # Log the original exception
+        return jsonify({"error": "BadRequest", "message": "Invalid input provided."}), 400
     except Exception as e:
EOF
@@ -96,3 +96,4 @@
except ValueError as e:
return jsonify({"error": "BadRequest", "message": str(e)}), 400
sentry_sdk.capture_exception(e) # Log the original exception
return jsonify({"error": "BadRequest", "message": "Invalid input provided."}), 400
except Exception as e:
Copilot is powered by AI and may make mistakes. Always verify output.
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