Program.cs

using Microsoft.Extensions.Configuration;

var builder = new ConfigurationBuilder()
    .AddUserSecrets<Program>(); // Loads user secrets

var configuration = builder.Build();

string clientId = configuration["AzureClientId"] ?? throw new InvalidOperationException("AzureClientId is not set in user secrets.");
string tenantId = configuration["AzureTenantId"] ?? throw new InvalidOperationException("AzureTenantId is not set in user secrets.");

var tokenAcquirer = new AdalTokenAcquirer()
{
    ClientId = clientId,
    TenantId = tenantId,
    Scopes = [ "User.Read.All" ] // Add your required scopes here
};

var accessToken = await tokenAcquirer.GetAzureDevOpsAccessTokenAsync();

Console.WriteLine(accessToken.TokenType);
Console.WriteLine(accessToken.Account.Username);
Console.WriteLine(accessToken.ExpiresOn);

Console.WriteLine("Press any key to exit...");
Console.ReadKey();