nativescript authenticating at backend web api
<p>I am new to mobile development. My project is build using asp.net. For authentication I am using build it UserManager &amp;  User.Identity.</p>

<p>I have bunch of existing web apis  and I wish to use them from mobile app.
I know , I could pass a secret hash to web api after authenticating, but that would involve  a huge code refactoring.</p>

<p>I been wondering if there other ways to handle authentication &amp; authorization with nativescript   &amp; asp.net .</p>

<p>Do you know any useful resources for this topic?</p>

<p>Many thanks for your help!</p>