Improve webhook error handling validation and logging verification

[aeraa1725-bot]

Summary

Verified webhook error handling behavior and ensured proper logging and response flow for both success and failure cases.

Changes

• Verified existing exception handling in webhook processing
• Tested valid webhook flow (200 response)
• Tested failure scenario using controlled exception
• Confirmed logger.exception is triggered correctly
• Ensured webhook does not silently fail

Testing Done

• Valid webhook request → 200 OK response
• Malformed/forced error request → logs error and returns 500
• Verified Django logs in terminal

Notes

No major logic changes were introduced in this PR. This PR focuses on validation and ensuring existing webhook error handling behaves correctly.
Added controlled testing of failure path using forced exception to ensure logging behavior is correct.

Issue

Closes #176

Summary by CodeRabbit

• Bug Fixes
  • Fixed webhook handling so that when webhook processing fails due to an exception, the endpoint now returns an HTTP 500 JSON error response instead of incorrectly following the success path.
  • Updated webhook error test coverage to assert the correct HTTP 500 behavior while keeping verification of the related error log message.

[Kuldeeep18]

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Configuration used: defaults

Review profile: CHILL

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Run ID: fd7166be-e3ab-4980-8662-ca7af8753b1b

📥 Commits

Reviewing files that changed from the base of the PR and between 5460a40 and 8c3128c.

📒 Files selected for processing (1)

• backend/campaigns/tests.py

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📝 Walkthrough

Walkthrough

WebhookView.post now returns HTTP 500 JSON on webhook processing exceptions instead of silently falling through to the success response. The corresponding test is updated to expect HTTP 500 status instead of HTTP 200.

Changes

Webhook Exception Response

Layer / File(s)	Summary
Return 500 on webhook processing exception backend/campaigns/views.py, backend/campaigns/tests.py	The except block in WebhookView.post now immediately returns JsonResponse({"error": "Webhook processing failed"}, status=500). The test test_email_webhook_logs_processing_errors is updated to assert HTTP 500 response instead of HTTP 200.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐇 No more silent hops into the void,
When webhooks stumble, I won't be annoyed.
A 500 jumps out, loud and clear,
"Processing failed!" for logs to hear.
Errors exposed — the warren rejoices! 🎉

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: improving webhook error handling validation and logging verification, which accurately reflects the PR's purpose.
Linked Issues check	✅ Passed	The PR fulfills all coding requirements from issue #176: the exception handler now logs errors and returns a 500 status code, and a test verifies error logging for malformed webhook data.
Out of Scope Changes check	✅ Passed	All changes in views.py and tests.py are directly related to addressing issue #176's requirements for webhook error handling and logging verification.

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@backend/campaigns/views.py`:
- Around line 394-397: Update the webhook error-path test assertions in
backend/campaigns/tests.py lines 1202-1214 to expect
status.HTTP_500_INTERNAL_SERVER_ERROR instead of HTTP_200_OK. The implementation
now correctly returns a 500 error when webhook processing fails (as shown in the
Response with HTTP_500_INTERNAL_SERVER_ERROR status), but the tests still assert
for HTTP_200_OK, creating a mismatch between the code contract and test
expectations that will cause test failures.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 7ff7df35-09b8-44c2-9584-f8c2690c7264

📥 Commits

Reviewing files that changed from the base of the PR and between 90052f9 and 5460a40.

📒 Files selected for processing (1)

• backend/campaigns/views.py

[aeraa1725-bot]

All requested changes implemented. Webhook error handling now logs exceptions and test suite is aligned. Tests passing locally and CI green.