CODEWITHSUNDEEP
azurexamarinxamarin.formsazure-mobile-services
hamdanjz4
hamdanjz4

Reputation: 315

Failed to install Microsoft.Azure.Mobile.Server.Authentication into Xamarin Forms

I'm trying to add / install Microsoft.Azure.Mobile.Server.Authentication into my PCL project but there is an error says

Could not install package 'Microsoft.Azure.Mobile.Server 2.0.0'. You are trying to install this package into a project that targets '.NETPortable,Version=v4.5,Profile=Profile49', but the package does not contain any assembly references or content files that are compatible with that framework.

I've tried installing the previous version, but the exact same error appeared. I've also tried to changing Framework version to .NET 4.6, but other errors come up.

I want to use GetAppServiceIdentityAsync() method which only supported by that namespace. Is there any other way to add that reference into my PCL project?

Upvotes: 0

Views: 565

Answers (3)

Adrian Hall
Adrian Hall

Reputation: 8035

Azure Mobile Apps has two versions - one that runs on the server and the other runs on the client. You are trying to use the server version and that requires ASP.NET and .NET Framework 4.5+ (4.6 at the moment). It won't work in your client.

If you are using Azure Mobile Apps on the server, then you have already added a referenced to Microsoft.Azure.Mobile.Client and created a mobile client reference to your Azure App Service. You have also already configured your Azure Mobile Apps Server and linked your auth provider using Azure App Service Authentication. If you haven't, check out the book http://aka.ms/zumobook - this will give you the right instruction on this.

If you are still with me, you then need to do a HTTPS connection to your Azure App Service URL + /.auth/me - this returns a JSON blob which contains the provider information that Azure App Service Authentication knows about. One of the things that the service knows about is the auth token used to authenticate. You can then use this auth token to get additional information about the user if it isn't in the JSON blob.

A great way to get that information is to use the client.InvokeApiAsync<>() method as Bruce mentioned. This is covered in the book as well.

Upvotes: 1

Bruce Chen
Bruce Chen

Reputation: 18465

As I known, GetAppServiceIdentityAsync is used to retrieve the Identity (ProviderCredentials) for the specific provider in your server-side code. For your mobile client, I assumed that you could leverage MobileServiceClient.InvokeApiAsync<List<AppServiceIdentity>>("/.auth/me"); to retrieve the identities and filter them with the specific provider, them you could get Provider, UserId and UserClaims properties as you expected. For more details, you could refer to Obtaining User Claims.

Upvotes: 2

Sean Stayns
Sean Stayns

Reputation: 4234

Have you tried to set the Android API Level to a higher level? I had this error by installing Moq and I could solve this problem with changing the Android API Level to the highest API level. Please try to use Android 7.1 (Nougat) with API-Level 25, also at the minimum SDK.

You can change it with: Right click on the project -> Options -> Build -> General -> Android Application

Under General you can also try to change the target version for the app to a higher level.

Upvotes: 0

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