Figure out ProblemDetails + System.Text.Json

[pranavkm]

• - ProblemDetails relied on JsonExtensionAttribute to ensure that swagger document generators produced the correct JsonSchema. Since the attribute would no longer be available, we need to figure out an alternate way to describe this to document generators.

[khellang]

• Since the attribute would no longer be available, we need to figure out an alternate way to describe this to document generators.

Why can't inheritance be used for this?

[pranavkm]

@khellang the tentative plan is to have an attribute that System.Text.Json understands and add support for it in swagger generators. Places like so:

• https://github.com/domaindrivendev/Swashbuckle.AspNetCore/blob/bf455f474784316a2b33ee33eefd277d5729fc3a/src/Swashbuckle.AspNetCore.SwaggerGen/Generator/SchemaRegistry.cs#L204-L208
• https://github.com/RSuter/NJsonSchema/blob/7fd6a3fa8e5cb71d54148eb26cc3bd46d2397d12/src/NJsonSchema/Generation/JsonSchemaGenerator.cs#L367-L368