copilotstudiocustomchat.cs

using Microsoft.Agents.CopilotStudio.Client;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Identity.Client;

// ====== EDIT THESE VALUES ======
var directConnectUrl = "<<PASTE_FROM_COPILOT_STUDIO_CHANNEL_PAGE>>"; // Agents SDK connection value
var tenantId         = "<<YOUR_TENANT_ID_GUID>>";
var clientId         = "<<YOUR_ENTRA_APP_CLIENT_ID>>";
// ===============================

// 1) Connection settings
var settings = new ConnectionSettings
{
    DirectConnectUrl = directConnectUrl
};

// 2) Acquire a user token (interactive)
var scope = CopilotClient.ScopeFromSettings(settings); // derives correct scope for the Power Platform cloud

var pca = PublicClientApplicationBuilder
    .Create(clientId)
    .WithTenantId(tenantId)
    .WithRedirectUri("http://localhost")
    .Build();

AuthenticationResult auth = await pca
    .AcquireTokenInteractive(new[] { scope })
    .ExecuteAsync();

// 3) Setup DI for HttpClientFactory + basic logging
var services = new ServiceCollection();
services.AddLogging(b => b.AddSimpleConsole(o => o.SingleLine = true).SetMinimumLevel(LogLevel.Information));
services.AddHttpClient("mcs");

var sp = services.BuildServiceProvider();
var logger = sp.GetRequiredService<ILoggerFactory>().CreateLogger("copilot-ui");

// 4) Create Copilot client (token provider returns the user token)
var client = new CopilotClient(
    settings,
    sp.GetRequiredService<IHttpClientFactory>(),
    _ => Task.FromResult(auth.AccessToken),
    logger,
    httpClientName: "mcs"
);

// 5) Start conversation
string conversationId = "";
await foreach (var act in client.StartConversationAsync())
{
    conversationId = act.Conversation?.Id ?? conversationId;
}

Console.WriteLine($"Connected. ConversationId={conversationId}");
Console.WriteLine("Type a message and press Enter. Type 'exit' to quit.");

while (true)
{
    Console.Write("> ");
    var input = Console.ReadLine();
    if (string.IsNullOrWhiteSpace(input)) continue;
    if (input.Equals("exit", StringComparison.OrdinalIgnoreCase)) break;

    await foreach (var act in client.AskQuestionAsync(input, conversationId))
    {
        if (act.Type == "message" && !string.IsNullOrWhiteSpace(act.Text))
            Console.WriteLine($"Agent: {act.Text}");
    }
}