How to set a custom JSON Serializer in Refit

Question

Currently the API response includes two top level attributes which are of no use to my need.

a: {
   b: {
      c: [
           data: whichINeed
         ]
      }
   }

If I create models for this I would have unncessary root objects which I want to get rid of ? How can I do this in Refit for Windows App ?

Answer 1

You'll need NewtonsoftJsonContentSerializer that exists on package Refit.Newtonsoft.Json.

Then, add it to the RefitSettings:

RestService.For<T>("host"),
  new RefitSettings
  {
    ContentSerializer = new NewtonsoftJsonContentSerializer(jsonSerializerSettings)
  });

Answer 2

If you are using Refit via dependency injection, you can configure it to use the standard .NET JSON settings to overwrite the Refit settings (You can obviously use different Serializers too):

 var jsonSerializerOptions = new System.Text.Json.JsonSerializerOptions();
 var refitSettings = new RefitSettings
    {
        ContentSerializer = new SystemTextJsonContentSerializer(jsonSerializerOptions)
    }; 
builder.Services
    .AddHttpClient()
    .AddRefitClient<IHierarchyScopeApi>(refitSettings)
    .ConfigureHttpClient(x =>
{
    x.BaseAddress = new Uri("https://localhost:7023/");
    x.DefaultRequestHeaders.Add("x-api-key", builder.Configuration["Authorization:ApiKey"]);
});