[OSDEV-1468] Limit page parameter for GET /api/facilities.

[vladsha-dev]

OSDEV-1468 - Limit the page parameter to 100 for the GET /api/facilities/ endpoint. This will help prevent system downtimes, as larger pages (OFFSET) make it harder for the database to retrieve data, especially considering the large amount of data we have.

[barecheck]

React App | Jest test suite - Code coverage report

Total: 27.77%

Your code coverage diff: 0.00% ▴

✅ All code changes are covered

[barecheck]

Dedupe Hub App | Unittest test suite - Code coverage report

Total: 56.14%

Your code coverage diff: 0.00% ▴

✅ All code changes are covered

[barecheck]

Contricleaner App | Unittest test suite - Code coverage report

Total: 98.91%

Your code coverage diff: 0.00% ▴

✅ All code changes are covered

[barecheck]

Countries App | Unittest test suite - Code coverage report

Total: 100%

Your code coverage diff: 0.00% ▴

✅ All code changes are covered

[barecheck]

Django App | Unittest test suite - Code coverage report

Total: 79.95%

Your code coverage diff: 0.03% ▴

✅ All code changes are covered

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[coderabbitai]

📝 Walkthrough

Walkthrough

The pull request introduces significant updates for version 1.26.0 of the Open Supply Hub project, including database migrations, API endpoint modifications, new features, and bug fixes. Key changes involve the introduction of pagination settings for facilities, validation for query parameters, and enhancements to response structures. The addition of new endpoints and parameters, along with improved error handling and testing, aims to enhance the functionality and maintainability of the codebase.

Changes

File Path	Change Summary
doc/release/RELEASE-NOTES.md	Updated release notes for version 1.26.0, detailing database migration for ModerationEvent, API changes including new endpoints and breaking changes, architecture changes for database snapshots, and bug fixes.
src/django/api/constants.py	Added class FacilitiesListSettings with constant DEFAULT_PAGE_LIMIT set to 100 for pagination settings.
src/django/api/serializers/facility/facility_list_page_parameter_serializer.py	Introduced FacilityListPageParameterSerializer to validate page query parameter for facilities list, with constraints and custom error messages.
src/django/api/tests/test_page_limit_in_facilities_viewset_list_action.py	Added TestPageLimitInFacilitiesViewsetListAction class with tests for enforcing page limit in facilities viewset, validating responses for valid and exceeding page numbers.
src/django/api/views/facility/facilities_view_set.py	Updated list method in FacilitiesViewSet to include validation using FacilityListPageParameterSerializer, enhancing error handling for pagination parameters.
src/django/api/views/facility/facility_parameters.py	Added page parameter to facilities_list_parameters for pagination, referencing FacilitiesListSettings.DEFAULT_PAGE_LIMIT.

Possibly related PRs

• [OSDEV-1453] Use the 'detail' keyword instead of 'message' in response objects #431: Updates error response objects for V1 endpoints to use the detail keyword instead of message.
• [OSDEV-1482] GET api/v1/moderation-events/{moderation_id} should return single response instead of array #444: Modifies the GET api/v1/moderation-events/{moderation_id} endpoint to return a single response instead of an array.
• [OSDEV-1346] Remove null properties from OpenSearch output #417: Disables null values for os_id, claim_id, and source in the PATCH response of the OpenSearch API.
• [OSDEV-1332] Moderation. Implement PATCH api/v1/moderation-events/{moderation_id} #393: Implements a new PATCH API endpoint for moderation events.

Suggested reviewers

• Innavin369
• roman-stolar
• VadimKovalenkoSNF
• mazursasha1990

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[coderabbitai]

Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (3)

src/django/api/serializers/facility/facility_list_page_parameter_serializer.py (1)

9-25: LGTM! Clean implementation of page parameter validation.

The serializer effectively implements the page limit requirement with proper validation and user-friendly error messages.

Consider adding a docstring for the page field to document its purpose and constraints:

     page = IntegerField(
+        """
+        Optional page number for paginating through facilities.
+        Must be between 1 and DEFAULT_PAGE_LIMIT (100).
+        """
         required=False,

src/django/api/tests/test_page_limit_in_facilities_viewset_list_action.py (1)

7-36: LGTM! Good test coverage, but could be more comprehensive.

The tests effectively verify the page limit functionality for both valid and invalid cases.

Consider adding these test cases for more comprehensive coverage:

def test_page_parameter_is_optional(self):
    response = self.client.get(self.url)
    self.assertEqual(response.status_code, 200)

def test_page_parameter_rejects_non_integer(self):
    response = self.client.get(self.url, {'page': 'invalid'})
    self.assertEqual(response.status_code, 400)
    self.assertIn('page', json.loads(response.content))

def test_page_parameter_rejects_zero(self):
    response = self.client.get(self.url, {'page': 0})
    self.assertEqual(response.status_code, 400)
    self.assertIn('page', json.loads(response.content))

src/django/api/views/facility/facilities_view_set.py (1)

225-230: Consider adding error logging for monitoring.

While the validation logic is correct, adding error logging would help monitor invalid page parameter requests:

 if not page_serializer.is_valid():
+    log.info(f'Invalid page parameter: {page_serializer.errors}')
     raise ValidationError(page_serializer.errors)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 39c89b8 and 6a92c9d.

📒 Files selected for processing (6)

• doc/release/RELEASE-NOTES.md (1 hunks)
• src/django/api/constants.py (1 hunks)
• src/django/api/serializers/facility/facility_list_page_parameter_serializer.py (1 hunks)
• src/django/api/tests/test_page_limit_in_facilities_viewset_list_action.py (1 hunks)
• src/django/api/views/facility/facilities_view_set.py (2 hunks)
• src/django/api/views/facility/facility_parameters.py (2 hunks)

🔇 Additional comments (5)

src/django/api/views/facility/facility_parameters.py (2)

36-46: LGTM! Well-documented OpenAPI parameter definition.

The page parameter is properly documented with clear description and matches the serializer implementation.

---

36-46: Verify impact on existing API clients.

Let's check for any existing API clients that might be affected by the new page limit.

✅ Verification successful

No impact on existing API clients expected

The verification shows that the page limit implementation is safe because:

• Frontend code doesn't make any calls to /api/facilities endpoint with large page numbers
• The DEFAULT_PAGE_LIMIT of 100 in FacilitiesListSettings is consistently enforced across:
  • API documentation (in the parameter description)
  • Input validation (in the page parameter serializer)
  • Frontend test cases (max page values are within limits)
• The pagination configuration in Django settings uses even more conservative defaults:
  • Default page size: 20
  • Max page sizes: 50-250 depending on the paginator

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for API calls to facilities endpoint with page parameter
# Look for potential issues in tests and frontend code

# Check for page parameter usage in tests
echo "Checking tests for page parameter usage..."
rg -g '*.py' 'page.*=.*\d{3,}' tests/
rg -g '*.py' '[?&]page=\d{3,}' tests/

# Check for page parameter usage in frontend code
echo "Checking frontend code for page parameter usage..."
rg -g '*.{js,jsx,ts,tsx}' 'page.*=.*\d{3,}'
rg -g '*.{js,jsx,ts,tsx}' '[?&]page=\d{3,}'

# Check for direct API calls in documentation or examples
echo "Checking documentation for API examples..."
rg -g '*.{md,rst,txt}' '/api/facilities/.*[?&]page=\d{3,}'

Length of output: 2718

---

Script:

#!/bin/bash
# Let's check the specific facilities endpoint usage since previous results showed facility-lists
# Also check for any configuration or settings related to pagination

# Check for facilities endpoint usage with page parameter
echo "Checking facilities endpoint usage..."
rg -g '*.{js,jsx,ts,tsx}' '/api/facilities.*[?&]page='

# Check for pagination settings in Django
echo "Checking pagination settings..."
rg -g '*.py' 'DEFAULT_PAGE_LIMIT|page_size' src/

# Check for any other pagination-related constants
echo "Checking pagination constants..."
rg -g '*.py' 'PAGE_SIZE|PAGINATION|PER_PAGE' src/

Length of output: 1568

src/django/api/constants.py (1)

206-208: LGTM! Well-structured constant definition.

The FacilitiesListSettings class with DEFAULT_PAGE_LIMIT = 100 is appropriately placed and follows naming conventions.

src/django/api/views/facility/facilities_view_set.py (1)

94-95: LGTM! Clean import statement.

The import is properly split across lines for readability while maintaining PEP 8 compliance.

doc/release/RELEASE-NOTES.md (1)

46-46: LGTM! Clear and informative release note.

The release note clearly documents the change to limit the page parameter and explains the rationale behind it.

[VadimKovalenkoSNF]

Minor change required.

[mazursasha1990]

LGTM

[roman-stolar]

LGTM

[VadimKovalenkoSNF]

Approved.