RawInvokeAsync ... wrong variable type in xData doc

[Ecologic_dsi (Sylvain)]

Hi
I was trying to use Async Mode for RawInvokeAsync according to xData doc but it appears elements seem wrong into,
currently

procedure TForm2.WebButton1Click(Sender: TObject);
var
  Response: TXDataClientResponse
  GreetResult: string;

begin
  Response := await(Client.RawInvokeAsync('IMyService.Greet', ['My name']);
  GreetResult := string(TJSObject(Response.Result)['value']);
end;

Await return TJSValue not TXDataClientResponse and can consume TJSValue not TXDataClientResponse
I tried different type of variable without success.
... + missing ")" at end of line (looks like copy paste from end of night )

Please can you clarifiy how to use RawInvokeAsync in order to retrieve TJSArray or TJSObject from ?

thanks

[wlandgraf (Wagner Landgraf)]

Can you please provide a sample that reproduces the issue? On our side, it works fine. For example, this code works fine:

procedure TForm1.MathOperation;
var
  A, B: Integer;
  Response: TXDataClientResponse;
  CalcResult: Integer;
begin
  A := StrToInt(edA.Text);
  B := StrToInt(edB.Text);
  case cbOperation.ItemIndex of
    0: Response := await(ClientOperation.RawInvokeAsync('IMusicService.Sum', [A, B]));
    1: Response := await(ClientOperation.RawInvokeAsync('IMusicService.Multiply', [A, B]));
  end;
  CalcResult := JS.ToInteger(TJSObject(Response.Result)['value']);
  edResult.Text := IntToStr(CalcResult);
end;

To invoke a service operation declared like this:

  [ServiceContract]
  IMusicService = interface(IInvokable)
    ['{B93840E5-AF86-432B-BF31-751E5ED80079}']
    [HttpGet] function Sum(A, B: Integer): Integer;
    function Multiply(A, B: Integer): Integer;
    function CreateAlbum(Info: TCreateAlbumInfo): TAlbum;
    [HttpGet] function AlbumsPerArtist: TList<TCriteriaResult>;
  end;

[Ecologic_dsi (Sylvain)]

hi Wagner

Note = client is a web app here
My service is exposed as (and work fine by SwaggerUI)

Type
  TGps_coordonnates = Class
    latitude  : string;
    longitude : string;
  End;
  [ServiceContract]
  [Route('padmobile')]
  IPadMobileService = interface(IInvokable)
    ['{C8F62138-FC92-4D5B-A8BE-09E37DAC2961}']
    [HttpGet, Route('padmobile_cp2gps')]
    function PadMobile_GPS_from_CP(CodePostal:string): TGps_coordonnates;
  end;

In Web App I call it by

var
  CP_Loc              : String;
  JS_PAD_GPS_Loc      : TXDataClientResponse;
. . . 
CP_Loc :=  WebPanel_SIMU_Details_GPSmode_CPEdit.Text;
JS_PAD_GPS_Loc := await(XDataWebClient_PAD.RawInvokeAsync('IPadMobileService.PadMobile_GPS_from_CP', [CP_Loc]));

during compilation I get an error "await only available in async procedure"

[wlandgraf (Wagner Landgraf)]

Well, the error message tell you how to proceed. Any call to await must be in an async method, so declare you method like

  procedure CallPadMobileGPS; async;

And then put the await code inside such method.

[Ecologic_dsi (Sylvain)]

Thanks Wagner that's work fine