Calling Azure REST API from .Net Core native application by displaying the Azure Login Popup from C#

Question

Calling Azure REST API from .Net Core native application by displaying the Azure Login Popup from C#

David Downing 706

Is it possible to initiate the Azure Login Popup from a native windows application?

David Downing 706 Reputation points

2020-02-17T21:18:58.777+00:00

Adding more details:

Code:

IConfidentialClientApplication app;

app = ConfidentialClientApplicationBuilder.Create(ClientID)
.WithClientSecret(ClientSecret)
.WithAuthority(new Uri("https://login.microsoftonline.com/common/oauth2/authorize"))
.Build();

string[] scopes = new string[] { "https://graph.microsoft.com/.default" };

result = app.AcquireTokenForClient(scopes)
.ExecuteAsync().GetAwaiter().GetResult();

I get the following error in the response:

{"error":{"code":"AuthenticationFailed","message":"Authentication failed."}}

Answer accepted by question author

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Your answer

David Downing 706 Reputation points

2020-02-17T21:18:58.777+00:00

Adding more details:

Code:

IConfidentialClientApplication app;

app = ConfidentialClientApplicationBuilder.Create(ClientID)
.WithClientSecret(ClientSecret)
.WithAuthority(new Uri("https://login.microsoftonline.com/common/oauth2/authorize"))
.Build();

string[] scopes = new string[] { "https://graph.microsoft.com/.default" };

result = app.AcquireTokenForClient(scopes)
.ExecuteAsync().GetAwaiter().GetResult();

I get the following error in the response:

{"error":{"code":"AuthenticationFailed","message":"Authentication failed."}}

Answer 1

I was able to get the Azure REST APIs working using the following code from the Fluent NuGet Packages:

    private static string TestAuth()  
    {  
        // AzureCredentials credentials = new AzureCredentials(spLogin, TenantID, AzureEnvironment.AzureGlobalCloud);  
        var credentials = SdkContext.AzureCredentialsFactory.FromServicePrincipal(  
            ClientID,  
            ClientSecret,  
            TenantID,  
            AzureEnvironment.AzureGlobalCloud);  

        var client = RestClient  
            .Configure()  
            .WithEnvironment(AzureEnvironment.AzureGlobalCloud)  
            .WithCredentials(credentials)  
            .Build();  

        CancellationToken cancellationToken = new CancellationToken();  

        var request = new HttpRequestMessage(HttpMethod.Get, $"https://management.azure.com/subscriptions/{SubscriptionID}/resourcegroups/{ResourceGroupName}?api-version=2019-10-01");  
        client.Credentials.ProcessHttpRequestAsync(request, cancellationToken).GetAwaiter().GetResult();  
        var httpClient = new HttpClient();  
        var response = httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken).GetAwaiter().GetResult();  

        return response.Content.ReadAsStringAsync().GetAwaiter().GetResult();  
    }

Answer 2

Mehmet Seckin 6

If I'm understanding this correctly, you want to make calls to the Azure Resource Management APIs from a native application. It is certainly possible to authenticate against Azure from a native windows application through Azure Active Directory.

You can create an Azure AD application with user_impersonation permissions, and use that application to authenticate against your tenant using MSAL.NET libraries.

There is a quickstart application that uses a similar approach to access Microsoft Graph APIs.

Hope this helps.

David Downing 706 Reputation points

2020-02-17T20:49:11.06+00:00

In this case, I'm trying to do it from a console application. I'm getting the following error:

Microsoft.Identity.Client.MsalClientException
HResult=0x80131500
Message=Only loopback redirect uri is supported, but https://login.microsoftonline.com/common/oauth2/nativeclient was found. Configure http://localhost or http://localhost:port both during app registration and when you create the PublicClientApplication object. See https://aka.ms/msal-net-os-browser for details

Is this possible from a console application?

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Calling Azure REST API from .Net Core native application by displaying the Azure Login Popup from C#

1 additional answer

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