Return 422 ValidationError for zero-duration single-value posts on non-instantaneous sensors

[Copilot]

Posting sensor data with duration=PT0M and a single value to a non-instantaneous sensor currently falls through to a server-side error path instead of producing a client-facing validation response. This change moves that case into schema validation and adds explicit regression coverage.

• Validation behavior

  • Added a targeted guard in PostSensorDataSchema.check_resolution_compatibility_of_sensor_data for:
    • non-instantaneous sensor resolution
    • exactly one posted value
    • inferred resolution 0:00:00
  • This now raises a ValidationError with a clear message, returning the expected 422 response shape instead of surfacing a runtime error.

• Existing compatibility check retained

  • Kept the current incompatible-resolution validation for other non-zero/unsupported resolution combinations (inferred_resolution % required_resolution != 0).

• Regression test

  • Added API test coverage in flexmeasures/api/v3_0/tests/test_sensor_data.py for posting:
    • num_values=1
    • duration="PT0M"
    • to a non-instantaneous sensor
  • Asserts 422 and schema-level error text.

• Changelog

  • Added a bugfix entry documenting the endpoint behavior correction for POST /sensors/(id)/data.

inferred_resolution = data["duration"] / len(data["values"])
if len(data["values"]) == 1 and inferred_resolution == timedelta(hours=0):
    raise ValidationError(
        f"Cannot infer a non-zero resolution from one value over zero duration. "
        f"This sensor requires a resolution of {required_resolution}."
    )

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[read-the-docs-community]

Documentation build overview

📚 flexmeasures | 🛠️ Build #32289345 | 📁 Comparing 671c9e7 against latest (e97a0c4)

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2 files changed

± changelog.html
± api/v3_0.html