Using a SharePoint Provider Hosted App as Backend



i recently developed an Angular App for my company. Due to some non-technician decisions it was implemented with a C# backend which was placed inside SharePoint 2013 as a Provider Hosted App.

Now they like to have an App with similar functions as the Angular web-app.
In the development of the web-app i faced different problems with integrating the Provider Hosted App into SharePoint.
Now i cant access any of the C# backend functions with my Ionic App because of authentication within SharePoint.

Has someone already done something like this?

Greetings Simon


How exactly is your web app accessing the “Provider Hosted App” (What does that actually mean? I don’t know a thing about SharePoint…)? If your web app can access this, your Ionic app should too.