Use JsonSerializer in AspNet Core API project?

[mythz]

This previous answer shows you can override the JSON Serializer with a custom implementation:

Pluggable JSON serializer in API?

You can physically swap out any Content Type Serializer by registering a Custom Format, e.g: appHost.ContentTypes.Register(MimeTypes.Json, SerializeToStream, DeserializeFromStream); Which is what all the Custom Formats use: CSV SOAP MsgPack Protobuf Wire Just don’t expect any of the JSON customizations or all Add ServiceStack Reference supported language data types to work as they expect features and conventions in ServiceStack.Text. But if you’re just serializing a generic JSON A…

I’m not familiar with the capabilities/features the new JSON Serializer has, but you’re likely to run into issues if you’re using C# JSON Service Clients as you would be sending/receiving JSON between different implementations which can cause interoperability issues between their opinionated implmentation for sending different data types.

You could create your own JsonServiceClient which inherits from ServiceClientBase that uses their new JSON implementation, although for .NET Core you’re better off using JsonHttpClient but that doesn’t have an easy base class you can subclass and would need a modified copy that replaces all the places it uses JSON serialization.