I was able to fetch the blocklist properties inside my blocklist (using the controller i created) and fetch it using javascript but I was not able to get/show the values of the data types in my javascript

public class TestingApiController: UmbracoApiController { private readonly IUmbracoContextAccessor _umbracoContextAccessor;

    public  TestingApiController(IUmbracoContextAccessor umbracoContextAccessor)
    {
        _umbracoContextAccessor = umbracoContextAccessor;
    }

    [HttpGet]
    public ActionResult<IEnumerable<string>> GetAll()
    {

        if (!_umbracoContextAccessor.TryGetUmbracoContext(out var context))
        {
            return Problem("Unable to get Umbraco context.");
        }


        if (context.Content == null)
        {
            return Problem("Content cache is null.");
        }


        var contentType = context.Content.GetContentType(ImageAndTextBlock.ModelTypeAlias);

        if (contentType == null)
        {
            return Problem($"Content type for '{ImageAndTextBlock.ModelTypeAlias}' not found.");
        }


        var blockListProperties = contentType.PropertyTypes
            .Select(pt => new
            {
                PropertyName = pt.DataType,
                DataTypeId = pt.DataType.Id,
                DataTypeName = pt.DataType.Configuration.ToJson()
            });

        if (!blockListProperties.Any())
        {
            return Ok("No Block List properties found for the SsoPage content type.");
        }

        return Ok(blockListProperties);


    }
}

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