Swashbuckle/Swagger .NET Core Dictionary<int, MyModel>

Question

I'm having some issues using Swashbuckle to generate Swagger documentation for an API that returns a custom type containing a property which is a Dictionary whose value is IEnumerable.

public class MyReturnModel
{
    public IDictionary<int, IEnumerable<MyModel>> Data { get; set;}

    public MyReturnModel()
    {
        Data = new Dictionary<int, IEnumerable<MyModel>>();
    }
}

public class MyModel
{
    public int Value { get; set; }
}

If I have an API endpoint like so:

[ProducesResponseType(typeof(MyReturnModel), (int)HttpStatusCode.OK)]
[HttpGet]
public async Task<IActionResult> GetAsync()
{
    var myReturn = await MyReturnModelRepository.GetAsync();
    return Ok(myReturn);
}

The Swagger UI I can see shows the response type like so:

MyReturnModel {
data (inline_model, optional)
}
inline_model {}

How can I get the Swagger gen to generate documentation for the collection and the inner model?

Answer 1

The answer was that I was on version 1.2.0 of Swashbuckle. Updating to version 2.0.0 fixed the issue.