Not Able to Get Applications Url for Skype for Business

Question

I\'m trying to use the REST API in Skype for Business Online by following the instructions here: https://msdn.microsoft.com/EN-US/library/office/mt590891(v=office.16).aspx.

Answer 1

Correct. When the results of calling the user resource does not include applications, it will include a redirect value. Here's an example:

A call here:

https://webdir0b.online.lync.com/Autodiscover/AutodiscoverService.svc/root/oauth/user

May return the following:

{"_links":{"self":{"href":"https://webdir0b.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user"},"xframe":{"href":"https://webdir2a.online.lync.com/Autodiscover/AutodiscoverService.svc/root/xframe"},"redirect":{"href":"https://webdir2a.online.lync.com/Autodiscover/AutodiscoverService.svc/root"}}}

Which includes this redirect

"redirect":{"href":"https://webdir2a.online.lync.com/Autodiscover/AutodiscoverService.svc/root"}}}

To continue, you'll then need to make an Azure AD auth call, passing ONLY the value of the protocol://servername as the resource. This means reducing the following:

https://webdir2a.online.lync.com/Autodiscover/AutodiscoverService.svc/root

To be just this:

https://webdir2a.online.lync.com/

Now that you have a valid token for webdir2a.online.lync.com, you'll then need to append "/oauth/user" to the re-direct URL. You'll notice the initial call included this in the URL whereas the redirect URL doesn't.

Call the updated re-direct URL

https://webdir2a.online.lync.com/Autodiscover/AutodiscoverService.svc/root/oauth/user

And you should get what you're after:

{"_links":{"self":{"href":"https://webpooldm12a04.infra.lync.com/Autodiscover/AutodiscoverService.svc/root/oauth/user"},"applications":{"href":"https://webpooldm12a04.infra.lync.com/ucwa/oauth/v1/applications","revision":"2"},"xframe":{"href":"https://webpooldm12a04.infra.lync.com/Autodiscover/XFrame/XFrame.html"}}}

Which is the applications resource

"applications":{"href":"https://webpooldm12a04.infra.lync.com/ucwa/oauth/v1/applications","revision":"2"}

For the interested, I've created a .NET-based console app that demonstrates how to sign in to Skype for Business Online via the UCWA API - and in doing so, handles the autodiscovery process, re-directs, application creation, amongst other things.