Submit POST data with no callback

[Matthew McLarty]

I feel a little silly asking this since it feels like something that should be obvious.

How do I submit data to another URL, via POST (or GET if need be) without it being an ajax request? Do I need to construct a fake FormPanel and make it 1px big to submit the data to a URL? Can I use request builder and set the content-type header? The problem is that I need to browser to advance to that URL where the submission is processed but the GWT methods all seem to expect that to be an asynchronous event.

Please help?

[Slava Pankov]

You can have hidden (display: none) FormPanel with method="post". Then:

form.getElement().<FormElement> cast().setTarget("");

form.setAction(url);

form.submit();

That will redirect to specified url with POST.

[Matthew McLarty]

Darn, I was really hoping there'd be an cleaner way but if it works, it works, I guess. Thank you, Slava. :)

[Matthew McLarty]

Okay, for the record, this does not redirect the current page to the URL that is set to the action of the FormPanel. Any idea what I'm doing wrong?

                FormPanel form = new FormPanel();
                form.setAction("https://www.FAKEDOMAIN.com/my-account/order-complete.html");
                form.setHeight("1px");
                form.setWidth("1px");
                form.addStyleName(AppController.HIDDEN_CLASS);
               
                Hidden transactionId = new Hidden();
                transactionId.getElement().setAttribute("name", "transactionId");
                transactionId.setValue(order.getOrder().getQuoteNumber());
               
                Hidden transactionTotal = new Hidden();
                transactionTotal.getElement().setAttribute("name", "transactionTotal");
                transactionTotal.setValue(order.getTotalAmount().toString());
               
                Hidden printURL = new Hidden();
                printURL.getElement().setAttribute("name", "printURL");
                printURL.setValue(order.getPrintURL());
               
                FlowPanel formStuffer = new FlowPanel();
                formStuffer.add(transactionId);
                formStuffer.add(transactionTotal);
                formStuffer.add(printURL);
               
                form.add(formStuffer);
                view.getPnlTrackingSubmitter().add(form);
                form.submit();

[Slava Pankov]

For redirect you need: form.getElement().<FormElement> cast().setTarget("");

[Matthew McLarty]

Sorry it's taken me awhile to respond. I wanted to say thank you because this was the exact information I needed. Very much appreciated :)

[Kirill Prazdnikov]

What about JsInterop ?

Use the new fetch or old school XMLHttpRequest  

[Matthew McLarty]

The thing was that I actually needed to actually navigate to the target URL of the form post so a fetch/ajax/xmlhttprequest wouldn't have worked for me :\