Rest API

[cyracks]

Hello

is it possible to create multithreaded REST server with UniGUI ?

I have read it is not build for that and that it could be done in ServerModule, but that is a singleton and probably not the right approach. 

Is is possible to "remove" main form and use session event TUniMainModule.UniGUIMainModuleHandleRequest to handle requests and set response ?

[Jean-Marc Kiener]

use dmvc (https://github.com/danieleteti/delphimvcframework) instead. It is made exactly for your case.

[Sherzod]

10 minutes ago, cyracks said:

is it possible to create multithreaded REST server with UniGUI ?

I have read it is not build for that and that it could be done in ServerModule, but that is a singleton and probably not the right approach. 

Is is possible to "remove" main form and use session event TUniMainModule.UniGUIMainModuleHandleRequest to handle requests and set response ?

Hello,

Yes.

Using OnHttpDocument and OnHttpCommand events (UniSeverModule).

You can search on the forum with these keywords.

[cyracks]

Jean-Marc: thanks for the tip. I know there are other solutions available, but they all take time to learn and time is something i really do not have.

Sherzod: UniServerMoudle is singleton so no multithreading "out of the box". I do not want that multiple request are in one queue, all http requests should be executed immediately.

[picyka]

TMS XData documentação | Documentação TMS XData (tmssoftware.com)

[Tokay]

48 minutes ago, cyracks said:

UniServerMoudle is singleton so no multithreading "out of the box".

The UniServerMoudle has multithreading out of the box of cause. Each of the connections works in the different thread.

[cyracks]

TUniGUIServerModule Class

Quote

Every uniGUI application requires one server (its ServerModule as a global singleton), one session (represented by its MainModule)

I would like to work in MainModule where thread is already made and database connection is separate from other threads, but I do not know how to get rid of the "form(s)". How to gain control over what is returned to client, so that only relevant data is sent ?

[Farshad Mohajeri]

Please note that sessions and threads are not same things.

Each session has a dedicated connection provided that Connection component is placed on MainModule. However, sessions can be served by different threads at different times. When a request is received it can run in any thread and it is not guaranteed that it is the always same thread for a particular session. What uniGUI governs is that a session will not be accessed by multiple threads simultaneously.

[风吹小机机]

UNIGUI AND FASTREPORT Sparks from collision

[cyracks]

8 hours ago, 风吹小机机 said:

 

Great, could you please share the code ?

[Stemon63]

11 hours ago, 风吹小机机 said:

UNIGUI AND FASTREPORT Sparks from collision

What a beautiful tool!!

 

[araujoadanr]

You are a genius

[Stemon63]

On 11/26/2021 at 7:10 AM, 风吹小机机 said:

UNIGUI AND FASTREPORT Sparks from collision

Please tell us more on this project!! It's wonderful!!
You sell it?
Thanks

[jrp]

On 11/25/2021 at 1:13 AM, cyracks said:

TUniGUIServerModule Class

I would like to work in MainModule where thread is already made and database connection is separate from other threads, but I do not know how to get rid of the "form(s)". How to gain control over what is returned to client, so that only relevant data is sent ?

Hi cyracks,

I want to do something like what you wanted to do: work in MainModule and get rid of the forms.

Have you figure out how to do it?

[cyracks]

Yes but not with Unigui but with IntraWeb. But it would be really good if something like that would be possible in UniGui. I assume that not much effort would be needed to implement this functionality - sooner or later you have to implement API in your web application.

 

Instructions for IntraWeb NOT UniGui

unit ServerController;
...
initialization
  TSQLtoHTTPServerController.SetServerControllerClass;

    with THandlers.Add('', '/', TContentHTTP.Create) do begin
        CanStartSession := True;
        RequiresSessionStart := False;
    end;

TContentHTTP

unit _uSQLApi;

interface

uses
  Classes, IW.Content.Base, HTTPApp, IWApplication, IW.HTTP.Request,
  IW.HTTP.Reply, System.DateUtils, SysUtils, System.StrUtils, System.SyncObjs;

type
  TContentHTTP = class(TContentBase)
  protected
    hRequest: THttpRequest;
	...

  end;

implementation

uses
  ServerController, IW.Content.Handlers, IWMimeTypes;

constructor TContentHTTP.Create;
begin
  inherited;
  mFileMustExist := False;
end;

function TContentHTTP.Execute(aRequest: THttpRequest; aReply: THttpReply; const aPathname: string; aSession: TIWApplication; aParams: TStrings): boolean;
begin
    Result := True;

    aReply.WriteString('test');
    // CHECK MULTITHREAD - 10 simultaneous requests must complete in 3 seconds not 30 seconds
    Sleep(3000);
    aSession.Terminate;
end;

end.

 

[jrp]

That's cool cyracks. I hope someone will show us how to do it with UniGUI.

[TimKieu]

Based on Indy HTTP/1.1, Delphi RESTful servers are almost low performance. This case JavaSE-based frameworks win. Let take a look at: TechEmPower blog

AFAK, there may be only EsegeCe websocket SDK with HTTP/2 Indy ready for your high performance REST servers using with UniGUi. But it is commercial license.