Ability to configure scalar serializers in code.

Is your feature request related to a problem?

I'm using HotChocolate + Strawberry Shake combo to build ecosystem of microservices. On the server side I have own library, distributed by NuGets, that have plenty of extra scalar types. On the client side I wrote corresponding serializer to and from Runtime type, but to actually use them within autogenerated client I need to manually add them all to schema.extensions.graphql file and I need to do this for each and every client in each and every project.

The solution you'd like

IServiceCollection.AddSerializer<T>() method should be enough to register serializer, no graphql schema extensions should be needed.

-- OR --

There should be ability to define additional schema.global.extensions.graphql that would be used for each and every client in the project. That way I can provide that file from NuGet package as well.

Product

Strawberry Shake

Start by tracing Strawberry Shake's generated-client serializer registration and the IServiceCollection.AddSerializer() entry point, then compare how schema.extensions.graphql is consumed. Done means serializers from code or a project-wide schema.global.extensions.graphql can be reused by every client without per-client schema edits; review existing registration tests before choosing the approach.