Hello,

common use case when performing .NET datastore update in API Service is 

1) send restclient.Submit( ... dw_1) or restclient.sendPostRequest( ... dw_1.exportJson(True) ) from PB client
2) perform restclient.Retrieve(dw_1 ...) from PB client to refresh DW buffers

I was wondering if can avoid 2nd server call, since the API can return the datastore instead of the ds.update() return code

But the PB client seems unable to perform a new update and have its update flags in sync with API datastore

For example, Service's UpdateAsync below from Snapdevelop scaffolding is modified to return IDataStore<Department> instead of int.

public async Task<IDataStore<Department>> RetrieveAsync(CancellationToken cancellationToken)
{
  var dataStore = new DataStore<Department>(_dataContext);
  await dataStore.RetrieveAsync(new object[] { }, cancellationToken);
  return dataStore;
}

public async Task<IDataStore<Department>> UpdateAsync(IDataStore<Department> department, CancellationToken cancellationToken)
{
  department.DataContext = _dataContext;
  await department.UpdateAsync(cancellationToken); 
  return department;     // not working. UpdateAsync(true, cancellationToken) not working either
  //return await RetrieveAsync(cancellationToken);    // not working either
}

PB client is sending update and then refreshing the DW with API response, but a subsequent second update fails (in e.g. duplicate key and http 500 return code).

restclient.setRequestheader( "Content-type", "application/json" )
restclient.Submit( ls_endpoint, ls_response, dw_1)

dw_1.Reset()
// Attempt to refesh DW state on the client, and avoid new retrieve
dw_1.importJson(ls_response)

I would like to avoid this new server call to have proper refresh on PB DW 

restclient.Retrieve(dw_1, ls_response)

Thanks for sharing any idea.

.m