warrenbuckley/UpdateCheckerController.cs

## UpdateCheckerController.cs
using System.Threading;
using System.Threading.Tasks;
using System.Web.Http;
using NuGet.Configuration;
using NuGet.Protocol.Core.Types;
using NuGet.Protocol.Core.v3;
using NuGet.Versioning;

namespace Umbraco.Forms.UpdateChecker.Controller
{

    //TODO: Look at WebAPI Cache Output Attributes
    //Not built into WebAPI
    //From a MS MVP - Filip W (http://www.strathweb.com)
    //https://github.com/filipw/AspNetWebApi-OutputCache


    [RoutePrefix("api/UpdateChecker")]
    public class UpdateCheckerController : ApiController
    {
        [HttpGet]
        [Route("Ping")]
        public string Ping()
        {
            return "Pong";
        }

        [HttpGet]
        [Route("HasUpdate")]
        public async Task<string> HasUpdate(string versionNumber)
        {
            //Check to see if we can find a newer/greater version number on Nuget.org
            var repo = Repository.Factory.GetCoreV3(NuGetConstants.V3FeedUrl);

            var resource = await repo.GetResourceAsync<MetadataResource>();
            var lastestFormsVersion = await resource.GetLatestVersion("UmbracoForms",false,false,CancellationToken.None);

            //Parse the current version so we can compare easier
            var currentVersion = NuGetVersion.Parse(versionNumber);

            if (lastestFormsVersion > currentVersion)
            {
                return lastestFormsVersion.ToString();
            }

            return currentVersion.ToString();
        }

    }
}
	using System.Threading;
	using System.Threading.Tasks;
	using System.Web.Http;
	using NuGet.Configuration;
	using NuGet.Protocol.Core.Types;
	using NuGet.Protocol.Core.v3;
	using NuGet.Versioning;

	namespace Umbraco.Forms.UpdateChecker.Controller
	{

	//TODO: Look at WebAPI Cache Output Attributes
	//Not built into WebAPI
	//From a MS MVP - Filip W (http://www.strathweb.com)
	//https://github.com/filipw/AspNetWebApi-OutputCache


	[RoutePrefix("api/UpdateChecker")]
	public class UpdateCheckerController : ApiController
	{
	[HttpGet]
	[Route("Ping")]
	public string Ping()
	{
	return "Pong";
	}

	[HttpGet]
	[Route("HasUpdate")]
	public async Task<string> HasUpdate(string versionNumber)
	{
	//Check to see if we can find a newer/greater version number on Nuget.org
	var repo = Repository.Factory.GetCoreV3(NuGetConstants.V3FeedUrl);

	var resource = await repo.GetResourceAsync<MetadataResource>();
	var lastestFormsVersion = await resource.GetLatestVersion("UmbracoForms",false,false,CancellationToken.None);

	//Parse the current version so we can compare easier
	var currentVersion = NuGetVersion.Parse(versionNumber);

	if (lastestFormsVersion > currentVersion)
	{
	return lastestFormsVersion.ToString();
	}

	return currentVersion.ToString();
	}

	}
	}