Custom DA Server in the (MS Azure) Cloud

Data Abstract
1

Got a call from my customer asking what about integration of DA Server in MS Azure Cloud ?

I’m fairly new to MS Azure, searched the forums and found articles but the often referenced wiki.databastract articles (e.g. DataAbstract server on the cloud? - #3 by antonk) are gone as well as the mentioned discussion.

So any other help available?

Thanks in advance for reading.

2

Hi,

check Data Abstract Server on Windows Azure

3

The problem here is that this sample ist C# only where DA .NET files are included in a VS project.

But the current project is Delphi only.

4

Hi,

Data Abstract for Delphi server project is usual delphi application (console, gui or service).
I can recommend to check existing workarounds in google like delphi azure cloud - Google Search

EDIT: The easiest approach here would be to build your server app for Linux, put it into a Docker container instance ( see https://blogs.embarcadero.com/introduction-to-docker/ ) and then run it as an Azure Container App ( https://azure.microsoft.com/en-us/products/container-apps/ )

1 Like
5

DA work very fine in linux docker container :wink:

1 Like
6

PAServer in Ubuntu running, VMWare Intel: FMXLinux installed, SDK installed

Client and Custom DA Server FMX compiling for Win32 without error

Compiling for Linux throws these two errrors
[DCC Fehler] DataService_Impl.pas(21): E2003 Undeclared Identifier: ‘TDASpiderMonkeyScriptProvider’
[DCC Fehler] DataService_Impl.pas(21): E2217 Published-Feld ‘EcmaScriptProvider’ is neither of type class nor interface

First meeting today about the future of the project

FYI: On Windows 11 ARM compiling FMX project fails with this error
[Fataler Fehler] Das System kann die angegebene Datei nicht finden, ClassID: {F94EEEBC-9966-4B32-9C9C-763B22E31B20}

7

Hi,

Known. we haven’t TDASpiderMonkeyScriptProvider for Linux platform

this is guid of RemObjects.SDK.CodeGen4.dll.
you can avoid this error via disabling #ROGEN line in .dpr for ARM platform

{#ROGEN:MegaDemoLibrary.rodl} // RemObjects: Careful, do not remove!
8

commented that line but then there are missing the [ProjectName]_Intf.pas and [ProjectName]_invk.pas files.

9

Hi,

Looks like you are using RODL-based servers. these files are required for RODL-based service only.
You can convert your project to CodeFirst-based servers via correspondent item in IDE->Tools->Remoting SDK & DataAbstract menu.

Note: If you are using events you have to convert them manually.

difference:

  • RODL-based
//  ev: IChatEvents_Writer;
  ev := EventRepository as IChatEvents_Writer;
  ev.UserLogin(Session.SessionID, Nickname);
  • CodeFirst-based
//  ev: IROEventWriter<IChatEvents>;
  ev := EventRepository.GetWriter<IChatEvents>(Session.SessionID);
  ev.Event.UserLogin( Nickname);
10

Thanks.

I’m going to switch to CodeFirst for testing a Linux based server version. Just need to deepen my knowledge of DA.