Download a file from XData Service

[Weetch_Russell (Russell Weetch)]

I'm sure I saw an example but can't find it now, and it's not in any of Roger's books as far as I can see.

I have a service that sends back a pdf (the return type is TStream) and I want to know the best way to consume this in a webcore app.

I am using a TXDataWebClient to make the call.

Thanks

[wlandgraf (Wagner Landgraf)]

There are plenty of topics about this subject here in Support Center:

xWebClient PDF

I have a xDataServer that return a PDF file in TStream in one endpointin TMS Web Core how to get this TStream and show de PDF file in the browser? I am using this peace of code  XDataClient.RawInvoke(     'IVendaService.'+EndPoint, [JSConsultarVenda],     @OnLoad, @OnError ); Any suggestion are welcome.Thanks in advanced,Ageu

Display PDF from BLOB

Here's an example using the example web service from Hands on 1. When you click the button, the TWebBrowserControl navigates to the PDF endpoint. It displays an 'Open...' button to open the PDF. I am sure there are many other possibilities using hosted forms etc. [image] procedure TForm1.WebButton1Click(Sender: TObject); begin Browser.Navigate('http://localhost/flix/reportingservice/getcompanyprofile?aid=L13000088031'); end;

Web application - reporting

I refer to this one: Available at most other Amazon stores as well in case .de is not the closes to you.

[Weetch_Russell (Russell Weetch)]

Thanks, but none quite what I am after.

The example in Roger's book is an example using a VCL app to download the report. I do not want to just expose the url to the pdf as I need to use the validation by passing the JWT through the TXDataWebclient.

I was looking at the webcore Application methods, but not sure they will do what I need,

[AndrewSimard]

What do you intend to do with the PDF once Web Core has it? I posted an example that included the ability to print or download the file. Not sure offhand how I'd display it in a form though. Maybe this will give you a few ideas? The PDF bits are closer to the end of this.

Web Core / XData Service Query Example v3

The previous version of this topic was about getting a TStream from an XData service and loading it into an XDataWebDataSet for subsequent use later, with populating a TWeBTreeView used as an example. This has been working really well. However, it seems with a few more tweaks it could be made immensely more useful. Along the way I hit a few snags that took awhile to figure out (with lots of searches in the Support Center - and not always successful). Firstl, I wanted to be able to load up the…

[Weetch_Russell (Russell Weetch)]

Thanks I'll take a look. I was thinking of using straight js and I see you have done so towards the end of the article.

[AndrewSimard]

Surprising how much JS is starting to overrun my project these days! And perhaps amusingly, after witnessing decades of heated discussion about how Delphi should never be a case-sensitive language, I'm finding that maybe that wouldn't have been such a bad idea after all ;-)

[Weetch_Russell (Russell Weetch)]

Yes, as a result of many years with JS I tend to treat Delphi as case sensitive now. The one global law I would implement is that all assignments should use ":=" in every language. The amount of time I waste using := in JS and = in Delphi.....