diff --git a/FarmmapsApiSamples/Constants.cs b/FarmmapsApiSamples/Constants.cs
index 1d458b3..30f50f1 100644
--- a/FarmmapsApiSamples/Constants.cs
+++ b/FarmmapsApiSamples/Constants.cs
@@ -4,8 +4,10 @@ namespace FarmmapsApiSamples
     {
         public const string USERINPUT_ITEMTYPE = "vnd.farmmaps.itemtype.user.input";
         public const string GEOTIFF_ITEMTYPE = "vnd.farmmaps.itemtype.geotiff";
+        public const string GEOTIFF_PROCESSED_ITEMTYPE = "vnd.farmmaps.itemtype.geotiff.processed";
         public const string CROPFIELD_ITEMTYPE = "vnd.farmmaps.itemtype.cropfield";
         public const string SHAPE_PROCESSED_ITEMTYPE = "vnd.farmmaps.itemtype.shape.processed";
+        public const string SHAPE_ITEMTYPE = "vnd.farmmaps.itemtype.shape";
         public const string VRANBS_TASK = "vnd.farmmaps.task.vranbs";
     }
 }
\ No newline at end of file
diff --git a/FarmmapsApiSamples/NbsApp.cs b/FarmmapsApiSamples/NbsApp.cs
index 7f8d7a6..473ff3c 100644
--- a/FarmmapsApiSamples/NbsApp.cs
+++ b/FarmmapsApiSamples/NbsApp.cs
@@ -19,7 +19,7 @@ namespace FarmmapsApiSamples
         private readonly NitrogenService _nitrogenService;
 
         public NbsApp(ILogger<NbsApp> logger, FarmmapsApiService farmmapsApiService,
-           FarmmapsEventHub farmmapsEventHub, NitrogenService nitrogenService)
+            FarmmapsEventHub farmmapsEventHub, NitrogenService nitrogenService)
         {
             _logger = logger;
             _farmmapsApiService = farmmapsApiService;
@@ -39,49 +39,39 @@ namespace FarmmapsApiSamples
             try
             {
                 var roots = await _farmmapsApiService.GetCurrentUserRootsAsync();
-
-                // upload data to Uploaded
                 var uploadedRoot = roots.SingleOrDefault(r => r.Name == "Uploaded");
-                if (uploadedRoot != null)
+                var myDriveRoot = roots.SingleOrDefault(r => r.Name == "My drive");
+                if (uploadedRoot == null || myDriveRoot == null)
                 {
-                    var dataPath = Path.Combine("Data", "Scan_1_20190605.zip");
-                    var result = await _farmmapsApiService.UploadFile(dataPath, uploadedRoot.Code,
-                        progress => _logger.LogInformation($"Status: {progress.Status} - BytesSent: {progress.BytesSent}"));
-                    
-                    if (result.Progress.Status == UploadStatus.Failed)
-                    {
-                        _logger.LogError($"Uploading failed {result.Progress.Exception.Message}");
-                        return;
-                    }
-                    
-                    // find file we need to use, we use delay as hack until events work correctly
-//                    await Task.Delay(10000);
-
-//                    var isariaDataFilter = JObject.Parse(@"");
-//                    var uploadedFilesChildren = await
-//                        _farmmapsApiService.GetItemChildrenAsync(uploadedRoot.Code, SHAPE_PROCESSED_ITEMTYPE);
-
-                    // need to transform shape data to geotiff
-//                    var shapeToGeotiffRequest = new TaskRequest()
-//                    {
-//                        TaskType = "vnd.farmmaps.task.shapetogeotiff"
-//                    };
-//                    var taskCode = await _farmmapsApiService.QueueTaskAsync(, shapeToGeotiffRequest);
-                    
-
-                    var myDriveRoot = roots.SingleOrDefault(r => r.Name == "My drive");
-                    if (myDriveRoot != null)
-                    {
-                        var cropfieldItem = await GetOrCreateCropfieldItem(myDriveRoot.Code);
-
-                        _logger.LogInformation($"Calculating targetN with targetYield: {60}");
-                        var targetN = await _nitrogenService.CalculateTargetN(cropfieldItem, 60);
-                        _logger.LogInformation($"TargetN: {targetN}");
-
-                        _logger.LogInformation("Calculating nitrogen map");
-//                    var nitrogenMapItem = CalculateNitrogenMap(cropfieldItem,, targetN);
-                    }
+                    _logger.LogError("Could not find a needed root item");
+                    return;
                 }
+
+                var dataPath = Path.Combine("Data", "Scan_1_20190605.zip");
+                var result = await _farmmapsApiService.UploadFile(dataPath, uploadedRoot.Code,
+                    progress => _logger.LogInformation($"Status: {progress.Status} - BytesSent: {progress.BytesSent}"));
+
+                if (result.Progress.Status == UploadStatus.Failed)
+                {
+                    _logger.LogError($"Uploading failed {result.Progress.Exception.Message}");
+                    return;
+                }
+
+                var isariaGeotiffItem = await _nitrogenService.ProcessIsaria(uploadedRoot.Code,"Scan_1_20190605.zip");
+
+                // create and calculate target N
+                var cropfieldItem = await GetOrCreateCropfieldItemAsync(myDriveRoot.Code);
+
+                _logger.LogInformation($"Calculating targetN with targetYield: {60}");
+                var targetN = await _nitrogenService.CalculateTargetN(cropfieldItem, 60);
+                _logger.LogInformation($"TargetN: {targetN}");
+
+                _logger.LogInformation("Calculating nitrogen map");
+                var nitrogenMapItem =
+                    await _nitrogenService.CalculateNitrogenMap(cropfieldItem, isariaGeotiffItem, targetN);
+
+                _logger.LogInformation("Downloading nitrogen map");
+                await _farmmapsApiService.DownloadItemAsync(nitrogenMapItem.Code, $"{nitrogenMapItem.Name}.zip");
             }
             catch (Exception ex)
             {
@@ -89,7 +79,7 @@ namespace FarmmapsApiSamples
             }
         }
 
-        private async Task<Item> GetOrCreateCropfieldItem(string parentItemCode)
+        private async Task<Item> GetOrCreateCropfieldItemAsync(string parentItemCode)
         {
             var cropfieldItems = await
                 _farmmapsApiService.GetItemChildrenAsync(parentItemCode, CROPFIELD_ITEMTYPE);
@@ -101,7 +91,7 @@ namespace FarmmapsApiSamples
             var cropfieldItemRequest = new ItemRequest()
             {
                 ParentCode = parentItemCode,
-                ItemType = "vnd.farmmaps.itemtype.cropfield",
+                ItemType = CROPFIELD_ITEMTYPE,
                 Name = "Cropfield for VRA",
                 DataDate = currentYear,
                 DataEndDate = currentYear.AddYears(1),
diff --git a/FarmmapsApiSamples/NitrogenService.cs b/FarmmapsApiSamples/NitrogenService.cs
index cc94516..5157546 100644
--- a/FarmmapsApiSamples/NitrogenService.cs
+++ b/FarmmapsApiSamples/NitrogenService.cs
@@ -1,5 +1,7 @@
 using System;
+using System.Collections.Generic;
 using System.Globalization;
+using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
 using FarmmapsApi.Models;
@@ -21,6 +23,63 @@ namespace FarmmapsApiSamples
             _farmmapsApiService = farmmapsApiService;
         }
 
+        public async Task<Item> ProcessIsaria(string parentCode, string zipName)
+        {
+            // get processed isaria data (this can end in an infinite loop...)
+            // need better way of getting new items processed in a context...
+            Item isariaShapeItem = null;
+            await PollTask(TimeSpan.FromSeconds(3), async source =>
+            {
+                _logger.LogInformation("Trying to get isaria data");
+                var uploadedFilesChildren = await _farmmapsApiService.GetItemChildrenAsync(parentCode);
+
+                var zipItems = uploadedFilesChildren.Where(i => i.Name == zipName);
+                var isariaTasks = new List<Task<List<Item>>>();
+                foreach (var zipItem in zipItems)
+                {
+                    isariaTasks.Add(_farmmapsApiService.GetItemChildrenAsync(zipItem.Code,
+                        SHAPE_PROCESSED_ITEMTYPE));
+                }
+
+                List<Item>[] items = await Task.WhenAll(isariaTasks);
+                if (items.Length > 0)
+                {
+                    var nameWithoutExtension = Path.GetFileNameWithoutExtension(zipName);
+                    var flatItems = items.SelectMany(i => i).Where(i => i.Name.Contains(nameWithoutExtension)).ToList();
+                    if (flatItems.Count > 0)
+                    {
+                        isariaShapeItem = flatItems.OrderByDescending(i => i.Created).First();
+                        source.Cancel();
+                    }
+                }
+            });
+            
+            _logger.LogInformation("Found isaria data");
+            _logger.LogInformation("Converting shape to geotiff");
+
+            // need to transform shape data to geotiff
+            var shapeToGeotiffRequest = new TaskRequest()
+            {
+                TaskType = "vnd.farmmaps.task.shapetogeotiff"
+            };
+            var taskCode = await _farmmapsApiService.QueueTaskAsync(isariaShapeItem.Code, shapeToGeotiffRequest);
+                    
+            await PollTask(TimeSpan.FromSeconds(3), async (tokenSource) =>
+            {
+                _logger.LogInformation("Checking shapetogeotiff task status");
+                var itemTaskStatus = await _farmmapsApiService.GetTaskStatusAsync(isariaShapeItem.Code, taskCode);
+                if (itemTaskStatus.State != ItemTaskState.Processing && itemTaskStatus.State != ItemTaskState.Scheduled)
+                    tokenSource.Cancel();
+            });
+            
+            _logger.LogInformation("Isaria shape converted to geotiff");
+            
+            // the parent of the shape item is now the tiff isaria item
+            isariaShapeItem = await _farmmapsApiService.GetItemAsync(isariaShapeItem.Code);
+
+            return await _farmmapsApiService.GetItemAsync(isariaShapeItem.ParentCode); ;
+        }
+
         /// <summary>
         /// Calculates TargetN, makes the assumption the cropfield and user.input(targetn) item have the same parent
         /// </summary>
diff --git a/README.MD b/README.MD
index 33c4519..b6a6328 100644
--- a/README.MD
+++ b/README.MD
@@ -1,3 +1,5 @@
+##### NOT PRODUCTION READY CODE, JUST AN EXAMPLE
+
 Put your clientId and clientSecret in the appsettings.json.  
 
 * Needs upload API.