Fix serialization of [Experimental] AIContent-derived types #6900
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cc: @westey-m |
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Pull Request Overview
This PR fixes serialization issues with experimental AIContent-derived types by implementing a temporary workaround that registers them for JSON serialization without using the JsonDerivedType attributes.
- Adds a comprehensive test to verify serialization roundtrips for all AIContent-derived types
- Implements a temporary workaround to register experimental types for JSON serialization
- Updates error messages and method signatures to support the workaround approach
Reviewed Changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| AIContentTests.cs | Adds comprehensive test covering serialization of all AIContent-derived types including experimental ones |
| AIJsonUtilities.cs | Updates method to support bypassing built-in type checks and improves error messages |
| AIJsonUtilities.Defaults.cs | Registers experimental types for serialization and adds them to JsonSerializerContext |
| AIContent.cs | Updates comments explaining the temporary workaround approach |
test/Libraries/Microsoft.Extensions.AI.Abstractions.Tests/Contents/AIContentTests.cs
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jozkee
approved these changes
Oct 8, 2025
Serializing a chat message that contains these types otherwise blows up. |
src/Libraries/Microsoft.Extensions.AI.Abstractions/Utilities/AIJsonUtilities.cs
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src/Libraries/Microsoft.Extensions.AI.Abstractions/Utilities/AIJsonUtilities.Defaults.cs
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Is it released in nuget. If so which version |
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It'll be in a new version on nuget later today. |
This was referenced Oct 15, 2025
Merged
This was referenced Oct 15, 2025
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