Json.NET attributes should be ignored when using System.Text.Json

[cypressious]

My Api is using System.Text.Json, however I'm still referencing Json.NET. If I expose a model, that is using a the Json.NET attribute, the Swagger models are generated incorrectly:

[JsonProperty("is_visible")]
public bool IsVisible { get; set; }

generates the Swagger model

however the API response will be

"isVisible": true

[jeremyVignelles]

Seems like a duplicate of RicoSuter/NSwag#2243, part B.

System.Text.Json is not officially supported by NSwag

[RicoSuter]

I see this support is getting more and more important, but meanwhile System.Text.Json still does not expose metadata...

[RicoSuter]

Here we have a related PR: RicoSuter/NSwag#2655

[RicoSuter]

Moved to NJS.
This must be fixed in this mapping contract resolver here:
https://github.com/RicoSuter/NJsonSchema/blob/master/src/NJsonSchema/Generation/SystemTextJsonUtilities.cs#L45

[RicoSuter]

With NSwag v13.5.0 and a PropertyNamingPolicy which is not null (in asp.net core it is set to CamelCase by default) it should already work as expected.