Factory converter with global converter

[Study-Log]

The current chopper provides two ways to convert Request and Response.
The first version is to define the global default converter through the ChopperClient constructor. The second version is FactoryConverter annotation.
When we use both of them, the global default converter is ignored and the FactoryConverter is only being used.
Is there any plan to relay both of them?
For example,

void Sumfunction() {
  final chopper = ChopperClient(
    baseUrl: 'https://jsonplaceholder.typicode.com',
    services: [
      TodosListService.create(),
    ],
    converter: JsonConverter(),
  );
}

class SomeChopperService {
  // ...
  @Get(path: '/{id}')
  @FactoryConverter(response: convertResponse)
  Future<Response<Todo>> getTodo(@Path() int id);
}

Response<Todo> convertResponse<T, InnerType>(Response response) {
  final body = response.body;  // => body will be jsonMap by the relay of the `JsonConverter`
  return response.copyWith(body: Todo.fromJson(body));
}

If this is possible, converter can be Iterable like intercepter.

[stewemetal]

Converter methods defined with @FactoryConverter will - by design - override the default converter. @FactoryConverter's intended usage is overriding the default converter behavior selectively for individual requests.

However, if null is passed to any of @FactoryConverter's parameters then Chopper should use the default converter for that conversion. This needs investigation.

[lejard-h]

We could add a boolean to FactoryConverter to specify if we want to use global converter first.