So Intuit charges for each active connections to QuickBooks. Therefore, I want to restrict the QuickBooks functionality in my application to premium users only.
Ideally when any user clicks the "Connect to QuickBooks" button and my RequestOAuthToken http handler is called, I want to check if the user is allowed to use QuickBooks. If that is the case, then the normal OAuth flow continue. If the user is NOT allowed, then I want to redirect the user to the upgrade page of my app.
Given that the "Connect to QuickBooks" button opens a new window (at least on desktop, I haven't tried on phone/tablets), the window should get closed, and the main window (my app) should redirect the user to the right page. And actually this is exactly what happens if the normal OAuth flow completes.
Now, I have tried a few different approaches but I couldn't get it working.
1) In my RequestOAuthToken, return a HTTP redirect to the plan page
2) In my RequestOAuthToken, return an html page with javascript logic to redirect to page
3) In my RequestOAuthToken, return HTTP redirect to a page with javascript logic to redirect to page
4) I haven't tried that one but could I somehow intercept the javascript click handler on the Intuit button. I'm not sure if that is an accepted practice.
Here is the piece a javascript I grabbed from the .Net sample:
try
{
var parentlocation = window.parent.opener.location.hostname;
var currentlocation = window.location.hostname;
if (parentlocation != currentlocation)
{
window.location = plansUrl;
}
else
{
window.opener.location.href = window.opener.location.href;
window.close();
}
}
catch (e)
{
window.location = plansUrl;
}
Help me out please.