You can create multiple Application objects and have each one sign in as a different user, if you need to. An Application object represents an endpoint which you can sign in and do things with. Everything else hangs off this Application object. This is actually the only object in the API which you construct yourself. The starting point for using the Skype for Web API is the Application object. One of the real benefits of the Skype for Web API is that it’s greatly simplified this process into a single JavaScript call. Getting signed in using Skype for Web API’s predecessor, UCWA, used to be a complicated process involving trying different URLs, passing around tokens and generally trying to convince the server to let you in.

Check out the full list of posts on the Skype Web SDK page. Each lesson comes with source code (in GitHub) and a working demo page so you can see what it does. This is one post in a series of more than 30, devoted to helping you get up to speed quickly with the new Skype Web SDK.

Sign in skype web