.Net8 and AOT

[KLazarov]

As .Net 8 is being released next week I was wondering if there is any plan to enable AOT for the library as it allows for far faster startup times, which can help a lot for certain use cases.

Cheers!

[chgl]

Interested in this as well. Probably the biggest challenge lies with Serialization - at least that's what a very simple AOT test fails with:

System.InvalidOperationException: Reflection-based serialization has been disabled for this application. 
Either use the source generator APIs or explicitly configure the 'JsonSerializerOptions.TypeInfoResolver' property.

[ewoutkramer]

We're using System.Text.Json, and probably some reflection-based serialization, yes (although we've customized it so deeply that I wonder where we are still depending on it). Anyway, our serializers depend deeply on reflection and IL Emit, which are incompatible with AOT, so the serializers are out. Which means the FhirClient is out. Those are the most used parts of the SDK, so that's not a great start.

[ewoutkramer]

Sorry, I don't know anything about AOT. What should we do to enable this? I guess it means we should at least start targeting .NET 8 instead of .NET 6 ;-)