Hi Mark,

Here's a simple API I posted on a different thread that should get you started - I've just hacked it to do what you want, it's untested but should just about work!

Change the "Home" doc type alias to match your root node and the "SomeDocTypeAlias" to be your doc type. If you have a lot of nodes (I mean thousands) to traverse this could be a little slow.

using System.Collections.Generic;
using Umbraco.Web;
using Umbraco.Core.Models;
using Umbraco.Web.WebApi;
using System.Linq;

namespace MyNameSpace.ApiControllers
{
    public class TestApiController : UmbracoApiController
    {
        public string GetHelloWorld()
        {
            return "Hello World";
        }

        public List<SomeApiResponseModel> GetTestContentItems(SomeApiRequestModel request)
        {
            var response = new List<SomeApiResponseModel>();
            var _umbracoHelper = new UmbracoHelper(UmbracoContext.Current);

            var homeNode = _umbracoHelper.TypedContentAtRoot().FirstOrDefault();

            if(homeNode != null)
            {
                // here you might add filtering from your request
                foreach(var contentNode in homeNode.Descendants("SomeDocTypeAlias"))
                {
                    response.Add(new SomeApiResponseModel
                    {
                        SomeOtherProperty = contentNode.Id,
                        SomeTestProperty = contentNode.Name
                    });
                }
            }

            return response;
        }
    }

    public class SomeApiResponseModel
    {
        public string SomeTestProperty { get; set; }
        public int SomeOtherProperty { get; set; }
    }


    public class SomeApiRequestModel
    {
        public int PageNumber { get; set; }
        public int Year { get; set; }
    }

}

Both of you really helped with your answers, and both deserve to be marked as "solved". Alas I can only do one.

Thank you both. You've set me on a good path.

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