public async Task Update <TModel>(TModel model) { // guard from kunckleheads if (model == null) { throw new ArgumentNullException(nameof(model)); } ThrowIfUnmanaged(model); var patch = BuildPatch(model); // if nothing was updated, no need to continue if (patch == null) { return; } var allModels = ModelRegistry.IncludedModelsCreate(model); foreach (var newModel in allModels) { var newResource = BuildModelResource(newModel); // Update the model instance in the argument var initialize = newModel.GetType().GetInitializeMethod(); initialize.Invoke(newModel, new object[] { newResource, this }); } var includes = allModels.Select(ModelRegistry.GetResource).ToArray(); var originalResource = ModelRegistry.GetResource(model); var root = ResourceRootSingle.FromResource(patch, includes); var request = await HttpRequestBuilder.UpdateResource(originalResource, root); var response = await HttpClient.SendAsync(request).ConfigureAwait(false); HttpResponseListener.UpdateResource(response.StatusCode, originalResource, root); response.CheckStatusCode(); if (response.StatusCode == HttpStatusCode.OK) { var responseRoot = await response.GetContentModel <ResourceRootSingle>(JsonSettings); // Update the model instance in the argument var initialize = typeof(TModel).GetInitializeMethod(); initialize.Invoke(model, new object[] { responseRoot.Data, this }); Cache.Update(responseRoot.Data.Id, model); } else if (response.StatusCode == HttpStatusCode.NoContent) { ModelRegistry.ApplyPatch(model, patch); } // create and cache includes await Task.WhenAll(allModels.Select(x => Task.Run(() => { var resource = ModelRegistry.GetResource(x); Cache.Update(resource.Id, x); }))); }