fix(api): return argument errors instead of 500 when page_size exceeds the public maximum - #19415
fix(api): return argument errors instead of 500 when page_size exceeds the public maximum#19415Harsh23Kashyap wants to merge 2 commits into
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…s the public maximum validate_rest_api_page_size raises ValueError above REST_API_MAX_PAGE_SIZE (100), but several REST endpoints called it outside any error handling, so page_size=101 produced an unhandled 500 instead of the argument error the neighboring validation paths return. Catch ValueError at each unguarded call site and return the file's established argument-error response: - GET /searches - GET /mcp/servers - GET /memories and GET /memories/<id> (message list) - POST /retrieval and GET /datasets/<id>/documents/<id>/chunks - POST /searchbots/retrieval_test - GET /agents/<id>/sessions and the agent list endpoint - GET /connectors/<id>/logs - GET /compilation-template-groups
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Included review availability: Your plan provides up to 10 included reviews per hour; 2 remain after this review. 📝 WalkthroughWalkthroughREST endpoints now catch pagination validation failures and return argument-error responses. A unit test verifies that an oversized MCP ChangesPagination argument handling
Priority: ➖ Normal Estimated code review effort: 2 (Simple) | ~10 minutes Severity of issue fixed: Medium Merge Risk: ⚪ Minimal · up to Oversized page_size requests now return the established argument-error response rather than an HTTP 500, with regression coverage for the MCP endpoint. No current merge-blocking risk is identified. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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Inline comments:
In `@test/testcases/restful_api/test_mcp_routes_unit.py`:
- Line 809: Update the assertion in the MCP route test to require the exact
error message “page_size must be less than or equal to 100” rather than checking
only for the “page_size” substring, preserving enforcement of the API contract.
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Configuration used: Organization UI
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📒 Files selected for processing (9)
api/apps/restful_apis/agent_api.pyapi/apps/restful_apis/bot_api.pyapi/apps/restful_apis/chunk_api.pyapi/apps/restful_apis/compilation_template_group_api.pyapi/apps/restful_apis/connector_api.pyapi/apps/restful_apis/mcp_api.pyapi/apps/restful_apis/memory_api.pyapi/apps/restful_apis/search_api.pytest/testcases/restful_api/test_mcp_routes_unit.py
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Tightened the new test to assert the exact message "page_size must be less than or equal to 100" per the review note. |
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What problem does this PR solve?
Fixes #19414
validate_rest_api_page_sizeraisesValueErrorwhenpage_sizeexceeds the public maximum (100), but a dozen REST endpoints call it outside any error handling, sopage_size=101fails with an unhandled 500 instead of the argument-error response neighboring validation returns.Fix: catch
ValueErrorat each unguarded call site and return the file's established argument-error response. Affected routes:GET /searches,GET /mcp/servers,GET /memories(+ message list),POST /retrieval,GET /datasets/<id>/documents/<id>/chunks,POST /searchbots/retrieval_test,GET /agents/<id>/sessions+ agent list,GET /connectors/<id>/logs,GET /compilation-template-groups.Type of change
Testing
Added
test_list_mcp_page_size_above_max_returns_argument_errortotest/testcases/restful_api/test_mcp_routes_unit.py:GET /mcp/servers?page_size=101raisesValueErrorout of the handler (verified by stashing the change)Full
test_mcp_routes_unit.py: 12/12 pass. All touched modules byte-compile.