Authenticating Asp.NET CORE web application from Xamarin

Question

I have a ASP.NET Core web application, having builtin authentication.

How can I authenticate Xamarin native mobile app with web app and use web services?

Is there any Xamarin library for authenticating Microsoft Identity Server?

I found an article describing creating web service backend in ASP.NET core, but it omitted authentication (why?) :

https://learn.microsoft.com/en-us/aspnet/core/mobile/native-mobile-backend

Ilya Sulimanov · Accepted Answer · 2017-02-21 06:15:13Z

3

In the article they use Web API template, problem is that ASP.NET Core does support personal authentication from a box (at least for right now)

Take a look at this project OpenIddict. It's really easy to use and thay have a lot of examples how to build your own authentication service based on ASP.NET Core Web API. There is only one drawback of this project (by my opinion) - from the box OpenIddict supports only EF Core as data access library, but you can implement your own provider.

edited Feb 21, 2017 at 6:15

answered Feb 21, 2017 at 6:10

Ilya Sulimanov

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2 Comments

Set Over a year ago

remark that EF is an object-relational mapper, not database provider. And you may simply configure it to use another DB, like PostgreSQL, instead if SQL.

Ilya Sulimanov Over a year ago

May be it was not clear but by provider I mean not EF, I mean OpenIddict data provider, If you want work with OpenIddict and EF 6.x as example than you have to implement your own data provider for OpenIddict.

xleon · Accepted Answer · 2017-02-22 02:57:48Z

3

There´s no Xamarin client for Microsoft Identity Server per se, but you can use oAuth2. It´s pretty standard.

Implementing an oAuth2 server like OpenIddict, IdentityServer or AspNet.Security.OpenIdConnect.Server you can use any oAuth2 client to authenticate, either way from a javascript application or Xamarin.

For Xamarin/.NET clients, there is an awesome client (PCL) called IdentityModel.

answered Feb 22, 2017 at 2:57

xleon

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