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AuthenticationResult.AcquireToken deprecated in ADAL 3.x and how to fix.

When authenticating to Dyn 365 with S2S the following is a simple program using the S2S authentication which core I think I got originally got from my pal George Doubinski. I like to use it to test S2S. Very clean and easy to build on.

string organizationUrl = ”<org url>”;string clientId = ”<client id in Azure>”;string appKey = ”<secret for the clientid>”;string aadInstance = ”https://login.microsoftonline.com/”;string tenantID = ”<contoso or whateveryouhave>.onmicrosoft.com”;

ClientCredential clientcred = new ClientCredential(clientId, appKey);AuthenticationContext authenticationContext = new AuthenticationContext(aadInstance + tenantID);AuthenticationResult authenticationResult = authenticationContext.AcquireToken(organizationUrl, clientcred);var requestedToken = authenticationResult.AccessToken;

using (OrganizationWebProxyClient sdkService = new OrganizationWebProxyClient(GetServiceUrl(organizationUrl), false)){sdkService.HeaderToken = requestedToken;OrganizationRequest request = new OrganizationRequest();
WhoAmIResponse response = sdkService.Execute(new WhoAmIRequest()) as WhoAmIResponse;

Console.WriteLine($”UserID:{response.UserId}”);Console.WriteLine(”Press any key to continue…”);Console.ReadKey();

}

However, the line:
AuthenticationResult authenticationResult = authenticationContext.AcquireToken(organizationUrl, clientcred);

Cloud computing – isn’t it great?

Requires ADAL version 2.x and the method AquireToken has been removed in the later version of that library.

If you look around the net, many advocate staying on 2.x version of the library but I didn’t have that option as I was integrating with Dyn 365 Operations and that was using the ver 3.x.

So, to make this work in version 3.x you just have to make a simple fix:

AuthenticationResult authenticationResult = authenticationContext.AcquireTokenAsync(ClientConfig.CRMOrgUrl, clientcred).Result;

Gustaf Westerlund
MVP, Founder and CTO at CRM-konsulterna AB

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