🐛 webserver: Fix 5XX error in GET /v0/projects/{project_id}/nodes/-/services when project has no nodes

[pcrespov]

What do these changes do?

The endpoint GET /v0/projects/{project_id}/nodes/-/services was returning a 5XX error due to an unhandled pydantic.ValidationError raised by catalog_service.batch_get_my_services. SEE

pydantic_core._pydantic_core.ValidationError: 1 validation error for function-after[functools.partial(<function min_length_validator at 0x773eebd72de0>, min_length=1)(), function-before[_deduplicate_preserving_order(), list[tuple[constrained-str, constrained-str]]]]

  Value should have at least 1 item after validation, not 0 [type=too_short, input_value=[], input_type=list]

    For further information visit https://errors.pydantic.dev/2.11/v/too_short

This occurred when a project had no nodes — resulting in an empty list being passed to the batch operation, which expects at least one service identifier.

The fix ensures that the request short-circuits gracefully when there are no nodes, avoiding the call to batch_get_my_services and returning an empty response instead.

Related issue/s

• detected by @odeimaiz in master and local deploy

How to test

• Manually

  • Click "+" in the dashboard and create ane empty project
  • Open info in project

• Driving test

cd services/web/server
make install-dev
pytest -vv tests/unit/with_dbs -k test_get_project_services_empty_project

Dev-ops

None

[codecov]

Codecov Report

❌ Patch coverage is 57.89474% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.60%. Comparing base (3632ac8) to head (dfc45a0).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8501      +/-   ##
==========================================
+ Coverage   87.62%   89.60%   +1.97%     
==========================================
  Files        2001     1576     -425     
  Lines       77920    65050   -12870     
  Branches     1338      496     -842     
==========================================
- Hits        68280    58287    -9993     
+ Misses       9240     6634    -2606     
+ Partials      400      129     -271     

Flag	Coverage Δ
integrationtests	64.12% <42.10%> (-0.03%)	⬇️
unittests	88.04% <52.63%> (+1.72%)	⬆️

Components	Coverage Δ
pkg_aws_library	∅ <ø> (∅)
pkg_celery_library	∅ <ø> (∅)
pkg_dask_task_models_library	∅ <ø> (∅)
pkg_models_library	93.06% <ø> (ø)
pkg_notifications_library	∅ <ø> (∅)
pkg_postgres_database	∅ <ø> (∅)
pkg_service_integration	70.17% <ø> (ø)
pkg_service_library	∅ <ø> (∅)
pkg_settings_library	∅ <ø> (∅)
pkg_simcore_sdk	84.95% <ø> (+0.05%)	⬆️
agent	93.10% <ø> (ø)
api_server	91.86% <ø> (ø)
autoscaling	95.72% <ø> (ø)
catalog	92.06% <ø> (ø)
clusters_keeper	99.14% <ø> (ø)
dask_sidecar	91.82% <ø> (-0.56%)	⬇️
datcore_adapter	97.95% <ø> (ø)
director	75.72% <ø> (ø)
director_v2	90.94% <ø> (-0.06%)	⬇️
dynamic_scheduler	96.82% <ø> (ø)
dynamic_sidecar	90.44% <ø> (ø)
efs_guardian	89.83% <ø> (ø)
invitations	90.90% <ø> (ø)
payments	92.80% <ø> (ø)
resource_usage_tracker	92.22% <ø> (ø)
storage	86.57% <ø> (+0.37%)	⬆️
webclient	∅ <ø> (∅)
webserver	87.24% <57.89%> (-0.08%)	⬇️

---

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[mergify]

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[pcrespov]

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[mergify]

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[sanderegg]

just some thoughts here.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
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0.0% Coverage on New Code
0.0% Duplication on New Code

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