Is there a way to combine custom converters from different projects?

[edsonaf]

System.Text.Json

Given I have an object A in project X, with its own custom converters
I also have object B in project Y, with its own custom converters

Finally I have object C (in project Z), which has object A and B as properties, and also has its own custom converters (for the other properties)

Instead of adding the custom converters of manually in Converters = { new ConverterA, new ConverterB} etc., what I want to do is dynamically get the Converters from Project X and Y and set it in Project Z's JsonSerializerOptions.

What is the recommend way to do this?

[edsonaf]

with NewtonSoft, I can easily add all of the converters in a list and then set it like:

var converters = new List() {
new converterA()
}
converters.addrange(Namespace.Project.X.Serializer.Converters)
converters.addrange(Namespace.Project.Y.Serializer.Converters)

JsonSerializerOptions ProjectZSerializerOptions = new JsonSerializerOptions() {Converters = converters}

Or is the best practice to just copy paste the converters from the Project X and project Y?

[eiriktsarpalis]

The JsonSerializerOptions.Converters property is an IList, so there's no AddRange method you can use out of the box. I would recommend writing your own extension method:

public static ListExtensions
{
    public static void AddRange(this IList<T> list, IEnumerable<T> range)
    {
         foreach (var T item in range)
             list.Add(item);
    }
}

And then use that to combine converters from different JsonSerializerOptions:

var options = new JsonSerializerOptions();
options.Converters.AddRange(options2.Converters);
options.Converters.AddRange(options3.Converters);