Microsoft.TeamsFx 1.1.0

TeamsFx .NET SDK

A NuGet package for Blazor projects which aims to reduce the developer tasks of implementing identity and access to cloud resources.

TeamsFx SDK for JavaScript/TypeScript | API reference documentation

Getting started

Build Teams apps with Blazor and the TeamsFx .NET SDK using Teams Toolkit. Visit the documentation to learn more.

Prerequisites

1. Install the ASP.NET and web development workload using the Visual Studio Installer.
2. Launch Visual Studio and create a new Blazor project.

Usage

How to get the package

1. Right-click on the project in Visual Studio and choose Manage NuGet Packages.
2. Search for Microsoft.TeamsFx and add it to the Blazor project.

Alternately, you can use the Package Manager.

> Install-Package Microsoft.TeamsFx

How to choose version

For .NET 5 projects (VS 2019): Choose version < 0.3.0-rc. For .NET 6 projects (VS 2022): Choose version >= 0.3.0-rc.

Using Teams User Credential in Teams Tab app

1. Add authentication options in appsettings.{Environment}.json file.

"TeamsFx": {
    "Authentication": {
        "ClientId": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
        "ClientSecret": "xxx", // 'User Secrets' is a better place to store secret string.
        "OAuthAuthority": "https://login.microsoftonline.com/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
    }
}

2. Add TeamsFx to services during startup.

public void ConfigureServices(IServiceCollection services)
{
    ...
    services.AddTeamsFx(Configuration.GetSection("TeamsFx"));
}

3. Add the required namespaces to the _Imports.razor file.

@using Microsoft.TeamsFx

4. Inject the registered TeamsFx services for any page that needs them.

@inject TeamsFx teamsfx
@inject TeamsUserCredential teamsUserCredential

5. Call teamsUserCredential.GetTokenAsync() to get access token or pass teamsUserCredential to other functions.

try
{
    await teamsUserCredential.GetTokenAsync(
        new TokenRequestContext(new string[] { "User.Read" }),
        new System.Threading.CancellationToken());
}
catch (ExceptionWithCode e)
{
    if (e.Code == ExceptionCode.UiRequiredError)
    {
        // show login button to let user consent
    }
    else
    {
        throw;
    }
}

Using Conversation Bot for Command and Response

1. Add your command handler class which implements the ITeamsCommandHandler interface.

   • Define your trigger patters in the TriggerPatterns property, you can use StringTrigger or RegExpTrigger.
   • Handle your command in HandleCommandAsync function, and return an ActivityCommandResponse or TextommandResponse object as the command response.

   public class SampleCommandHandler : ITeamsCommandHandler
   {
       // Define your trigger patterns
       public IEnumerable<ITriggerPattern> TriggerPatterns => new List<ITriggerPattern>
       {      
           new StringTrigger("helloworld")
       };
   
       // Handle your command and send response to Teams chat
       public async Task<ICommandResponse> HandleCommandAsync(ITurnContext turnContext, CommandMessage message, CancellationToken cancellationToken = default)
       {
           // TODO: provide your implementation here.
           return new TextCommandResponse("This is a sample response!");
       }
   }
   

2. Initialize the command bot and register your commands in your app's startup (usually it's in Program.cs or Startup.cs)

   builder.Services.AddSingleton<SampleCommandHandler>();
   builder.Services.AddSingleton(sp =>
   {
       var options = new ConversationOptions()
       {
           // NOTE: you need to register your CloudAdapter into your service before conversation bot initialization.
           Adapter = sp.GetService<CloudAdapter>(),
           Command = new CommandOptions()
           {
               Commands = new List<ITeamsCommandHandler> { sp.GetService<SampleCommandHandler>() }
           }
       };
   
       return new ConversationBot(options);
   });
   

3. Use the conversation bot in your bot controller

   namespace SampleTeamsApp.Controllers
   {
       using Microsoft.AspNetCore.Mvc;
       using Microsoft.Bot.Builder;
       using Microsoft.Bot.Builder.Integration.AspNet.Core;
       using Microsoft.TeamsFx.Conversation;
   
       [Route("api/messages")]
       [ApiController]
       public class BotController : ControllerBase
       {
           private readonly ConversationBot _conversation;
           private readonly IBot _bot;
   
           public BotController(ConversationBot conversation, IBot bot)
           {
               _conversation = conversation;
               _bot = bot;
           }
   
           [HttpPost]
           public async Task PostAsync(CancellationToken cancellationToken = default)
           {
               await (_conversation.Adapter as CloudAdapter).ProcessAsync
               (
                   Request,
                   Response,
                   _bot,
                   cancellationToken
               );
           }
       }
   }
   

Using Conversation Bot for Notification

1. Initialize your own bot adapter and the ConversationBot in your app's startup (usually it's in Program.cs or Startup.cs)

   // Create the Conversation with notification feature enabled.
   builder.Services.AddSingleton(sp =>
   {
       var options = new ConversationOptions()
       {
           // NOTE: you need to register your CloudAdapter into your service before conversation bot initialization.
           Adapter = sp.GetService<CloudAdapter>(),
           Notification = new NotificationOptions
           {
               BotAppId = botAppId, // Your bot app ID
           },
       };
   
       return new ConversationBot(options);
   });
   

2. Reference the conversation bot in your bot message controller/handler to ensure it's initialized before handling any bot message

   namespace SampleTeamsApp.Controllers
   {
       using Microsoft.AspNetCore.Mvc;
       using Microsoft.Bot.Builder;
       using Microsoft.Bot.Builder.Integration.AspNet.Core;
       using Microsoft.TeamsFx.Conversation;
   
       [Route("api/messages")]
       [ApiController]
       public class BotController : ControllerBase
       {
           private readonly ConversationBot _conversation;
           private readonly IBot _bot;
   
           public BotController(ConversationBot conversation, IBot bot)
           {
               _conversation = conversation;
               _bot = bot;
           }
   
           [HttpPost]
           public async Task PostAsync(CancellationToken cancellationToken = default)
           {
               await (_conversation.Adapter as CloudAdapter).ProcessAsync
               (
                   Request,
                   Response,
                   _bot,
                   cancellationToken
               );
           }
       }
   }
   

3. Send notification (called by your own controller or trigger)

   public async Task NotifyAsync(ConversationBot conversation, CancellationToken cancellationToken)
   {
       var installations = await conversation.Notification.GetInstallationsAsync(cancellationToken);
       foreach (var installation in installations)
       {
           await installation.SendMessage("Hello.", cancellationToken);
   
           // Or, send adaptive card (need to build your own card object)
           // await installation.SendAdaptiveCard(cardObject, cancellationToken);
       }
   }
   

SDK Upgrade Steps

Upgrade from 0.1.0-rc to 0.3.0 (For projects created by Visual Studio 2019 toolkit)

If there is an existing project created in VS2019, you can use the following steps to upgrade:

1. Open project in VS2022 and change project target framework to ".NET 6".

2. Upgrade dependencies: Microsoft.TeamsFx.SimpleAuth to 0.1.2, Newtonsoft.Json to 13.0.1, Microsoft.Graph to 4.12.0, Microsoft.Fast.Components.FluentUI to 1.1.0.

3. Add following lines in appsettings.{Environment}.json file after "ALLOWED_APP_IDS".

"ALLOWED_APP_IDS": "...",
"TeamsFx": {
    "Authentication": {
        "ClientId": "value copied from CLIENT_ID",
        "SimpleAuthEndpoint": "value copied from TAB_APP_ENDPOINT",
        "InitiateLoginEndpoint": "{value copied from TAB_APP_ENDPOINT}/auth-start.html"
    }
}

4. Add following lines in Startup.cs.

public void ConfigureServices(IServiceCollection services)
{
    ...
    services.AddTeamsFx(Configuration.GetSection("TeamsFx"));
}

and remove following 2 lines.

services.AddScoped<TeamsFx>();
services.AddScoped<TeamsUserCredential>();

5. Remove following codes in Welcome.razor.

var clientId = Configuration.GetValue<string>("CLIENT_ID");
var endpoint = MyNavigationManager.BaseUri;

await teamsfx.SetLogLevelAsync(LogLevel.Verbose);
await teamsfx.SetLogFunctionAsync(printLog);

AuthenticationConfiguration authentication = new AuthenticationConfiguration(clientId: clientId, simpleAuthEndpoint: endpoint, initiateLoginEndpoint: endpoint + "auth-start.html");
Configuration configuration = new Configuration(authentication);
await teamsfx.LoadConfigurationAsync(configuration);
...
private void printLog(LogLevel level, string message)
{
    Console.WriteLine(message);
}

Upgrade from 0.3.0-rc to 0.4.0-rc (For projects created by Visual Studio 2022 17.1 Preview toolkit)

If there is an existing project created in VS2022 17.1 Preview, you can use the following steps to upgrade:

• In appsettings.{Environment}.json file:

1. Add OAuthAuthority under TeamsFx:Authentication and copy the value from OAUTH_AUTHORITY.
2. Remove the line "SimpleAuthEndpoint": "https://localhost:port/".
3. Remove lines of configuration starting with "CLIENT_ID", "IDENTIFIER_URI", "TAB_APP_ENDPOINT", "OAUTH_AUTHORITY", "AAD_METADATA_ADDRESS", "ALLOWED_APP_IDS".
4. Remove the Nuget dependency package "Microsoft.TeamsFx.SimpleAuth".

• In Solution Explorer:

1. Right click project file and choose "Manage User Secrets".
2. Change key name "CLIENT_SECRET" to "TeamsFx:Authentication:ClientSecret".

Configure Logging

ILogger is used to print logs. You can configure logging in appsettings.{Environment}.json. Visit the ASP.NET documentation to learn more

Bot

Will be supported in the future.

Data Collection.

The software may collect information about you and your use of the software and send it to Microsoft. Microsoft may use this information to provide services and improve our products and services. You may turn off the telemetry as described in the repository. There are also some features in the software that may enable you and Microsoft to collect data from users of your applications. If you use these features, you must comply with applicable law, including providing appropriate notices to users of your applications together with a copy of Microsoft's privacy statement. Our privacy statement is located at https://go.microsoft.com/fwlink/?LinkID=824704. You can learn more about data collection and use in the help documentation and our privacy statement. Your use of the software operates as your consent to these practices.

Code of Conduct

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

Contributing

There are many ways in which you can participate in the project, for example:

• Submit bugs and feature requests, and help us verify as they are checked in
• Review source code changes

If you are interested in fixing issues and contributing directly to the code base, please see the Contributing Guide.

Reporting Security Issues

Please do not report security vulnerabilities through public GitHub issues.

Instead, please report them to the Microsoft Security Response Center (MSRC) at https://msrc.microsoft.com/create-report.

If you prefer to submit without logging in, send email to secure@microsoft.com. If possible, encrypt your message with our PGP key; please download it from the the Microsoft Security Response Center PGP Key page.

You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your original message. Additional information can be found at microsoft.com/msrc.

Trademarks

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.

License

Copyright (c) Microsoft Corporation. All rights reserved.

Licensed under the MIT license.