public AddEntityCategoriesFixture(OsdrWebTestHarness harness) { var categories = new List <TreeNode>() { new TreeNode("Category Root", new List <TreeNode>() { new TreeNode("My Test Category"), new TreeNode("Projects Two") }) }; var response = harness.JohnApi.PostData("api/categorytrees/tree", categories).Result; var content = response.Content.ReadAsStringAsync().Result; CategoryId = Guid.Parse(content); harness.WaitWhileCategoryTreePersisted(CategoryId); BlobId = harness.JohnBlobStorageClient.AddResource(harness.JohnId.ToString(), "Chemical-diagram.png", new Dictionary <string, object>() { { "parentId", harness.JohnId } }).Result; FileId = harness.WaitWhileFileProcessed(BlobId); var fileNodeResponse = harness.JohnApi.GetNodeById(FileId).Result; var fileNode = JsonConvert.DeserializeObject <JObject>(fileNodeResponse.Content.ReadAsStringAsync().Result); FileNodeId = Guid.Parse(fileNode.Value <string>("id")); // add category to entity response = harness.JohnApi.PostData($"/api/categoryentities/entities/{FileNodeId}/categories", new List <Guid> { CategoryId }).Result; response.EnsureSuccessStatusCode(); harness.WaitWhileCategoryIndexed(CategoryId.ToString()); }