Get an authentication access token

Hi rdc_green 

Way 1:

In the sample, steps 2 is using

Install-Package Microsoft.IdentityModel.Clients.ActiveDirectory -Version 2.21.301221612

Please make sure you have installed the package correctly.

In the newer ADAL v3, try this sample code.

using Microsoft.IdentityModel.Clients.ActiveDirectory;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication32
{
    class Program
    { 
        static void Main(string[] args)
        {
            string token =  GetToken();
            Console.WriteLine(token);             
            Console.ReadLine();
             
        }

        #region Get an authentication access token
        private  static string GetToken()
        {
            // TODO: Install-Package Microsoft.IdentityModel.Clients.ActiveDirectory -Version 2.21.301221612
            // and add using Microsoft.IdentityModel.Clients.ActiveDirectory

            //The client id that Azure AD created when you registered your client app.
            string clientID = "3f756axxxxxxx3662e";

            //RedirectUri you used when you register your app.
            //For a client app, a redirect uri gives Azure AD more details on the application that it will authenticate.
            // You can use this redirect uri for your client app
            string redirectUri = "https://login.live.com/oauth20_desktop.srf";

            //Resource Uri for Power BI API
            string resourceUri = "https://analysis.windows.net/powerbi/api";

            //OAuth2 authority Uri
            string authorityUri = "https://login.windows.net/common/oauth2/authorize";

            //Get access token:
            // To call a Power BI REST operation, create an instance of AuthenticationContext and call AcquireToken
            // AuthenticationContext is part of the Active Directory Authentication Library NuGet package
            // To install the Active Directory Authentication Library NuGet package in Visual Studio,
            //  run "Install-Package Microsoft.IdentityModel.Clients.ActiveDirectory" from the nuget Package Manager Console.

            // AcquireToken will acquire an Azure access token
            // Call AcquireToken to get an Azure token from Azure Active Directory token issuance endpoint
            AuthenticationContext authContext = new AuthenticationContext(authorityUri);

            //string token = authContext.AcquireToken(resourceUri, clientID, new Uri(redirectUri)).AccessToken;

            return   authContext.AcquireTokenAsync(resourceUri, clientID, new Uri(redirectUri), new PlatformParameters(0)).Result.AccessToken;
             
            
             
        }

        #endregion
    }
}

Way 2. Or you can have a test on getting access token or generate embed token by postman.

Enter the same link and body in postman.

For reference: Solved: Power BI REST API using postman - generate embed t... - Microsoft Power BI Community

Best Regards,

Rico Zhou

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