problem getting authentication token from AAD

Hi m4pv,

Could you also try the code (provided by BennyM) below to see if it works in your scenario? :smileyhappy:

• Source & Instructions: https://github.com/BennyM/PowerBI-CSharp
• Package: https://www.nuget.org/packages/PowerBI.Api/

private async Task<TokenCredentials> GetAccessToken()
{
    using (HttpClient client = new HttpClient())
    {
        string tenantId = "";
        var tokenEndpoint = "";
        var accept = "application/json";
        var userName = "";
        var password = "";
        var clientId = "";

        client.DefaultRequestHeaders.Add("Accept", accept);
        string postBody = null;

        postBody = $@"resource=https%3A%2F%2Fanalysis.windows.net/powerbi/api
                        &client_id={clientId}
                        &grant_type=password
                        &username={userName}
                        &password={password}
                        &scope=openid";

        var tokenResult = await client.PostAsync(tokenEndpoint, new StringContent(postBody, Encoding.UTF8, "application/x-www-form-urlencoded"));
        tokenResult.EnsureSuccessStatusCode();
        var tokenData = await tokenResult.Content.ReadAsStringAsync();

        JObject parsedTokenData = JObject.Parse(tokenData);

        var token = parsedTokenData["access_token"].Value<string>();
        return new TokenCredentials(token, "Bearer");
    }
}
public async Task<IActionResult> Index()
{

    var tokenCredentials = await GetAccessToken();


    // Create a Power BI Client object (it will be used to call Power BI APIs)
    using (var powerBiclient = new PowerBIClient(new Uri("https://api.powerbi.com/"), tokenCredentials))
    {

        // Get a list of all groupts
        var reports = powerBiclient.Groups.GetGroups();

        // Do anything you want with the list of groups.
    }
    return View();
}

Regards