Can't Set Value to Null using Patch Operation

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Describe the bug When using PatchOperation.Replace, I am unable to set value to null. I have tried both null and new JProperty(propName, null).Value. The latter was attempted due to recommendation in #2931.

To Reproduce This is the code used to create PatchOperation: PatchOperation.Replace($"/{cosmosPropName}", propValue ?? createNullValue(cosmosPropName)).

propValue is type object?. createNullValue() creates the JProperty mentioned in the description.

Expected behavior I would expect the property to be set to null value. Below example assumes description property is being set to null:

{
 "id": "adfda-asdgasd-adsfasdf",
  "partition_key": "aigeqwg-iuiou-qryqer",
  "description": null
}

Actual behavior Description property is unchanged.

Environment summary SDK Version: 3.32.0 OS Version: Windows 10

Additional context Nothing additional to add.

[brandonsmith86]

@aavasthy Found an issue in my logic. Updating versions does resolve it. Thank you!

[brandonsmith86]

Hi @aavasthy. Thank you for spending the time to reproduce. Do you think my problem is version, or lack of generic type? With my current implementation, I would not be able to supply type as I’m using reflection to get the value, which returns object? type.

Edit: I suppose I can do something like this. I’ll check tomorrow if this resolves it (in addition to updating to latest version).

patchOperations.Add(propValue == null // use generic version of PatchOperation.Replace if value is null
  ? PatchOperation.Replace<string?>($"/{cosmosPropName}", null)
  : PatchOperation.Replace($"/{cosmosPropName}", propValue));