csharp

page_type	sample
description	This sample application demonstrates how to manage the channel lifecycle—create, update, and delete channels—using the Microsoft Graph API through a Teams tab.
products	office-teams office office-365
languages	csharp
extensions	contentType createdDate samples 07/07/2021 01:38:26 PM
urlFragment	officedev-microsoft-teams-samples-graph-channel-lifecycle-csharp

Channel life cycle using C#

This sample application illustrates how to effectively manage the lifecycle of channels in Microsoft Teams using the Microsoft Graph API. It enables users to create, update, and delete channels directly through a Teams tab and is built with C# to demonstrate integration with the Microsoft 365 Agents Toolkit, complete with setup instructions for registration, tunneling, and deployment.

Included Features

• Tabs
• Graph API
• RSC Permissions

Interaction with app

Try it yourself - experience the App in your Microsoft Teams client

Please find below demo manifest which is deployed on Microsoft Azure and you can try it yourself by uploading the app package (.zip file link below) to your teams and/or as a personal app. (Sideloading must be enabled for your tenant, see steps here).

Channel life cycle: Manifest

Prerequisites

• .NET Core SDK version 6.0

  determine dotnet version

  dotnet --version

• dev tunnel or Ngrok (For local environment testing) latest version (any other tunneling software can also be used)

• Teams Microsoft Teams is installed and you have an account

• Microsoft 365 Agents Toolkit for Visual Studio

Run the app (Using Microsoft 365 Agents Toolkit for Visual Studio)

The simplest way to run this sample in Teams is to use Microsoft 365 Agents Toolkit for Visual Studio.

1. Install Visual Studio 2022 Version 17.14 or higher Visual Studio
2. Install Microsoft 365 Agents Toolkit for Visual Studio Microsoft 365 Agents Toolkit extension
3. In the debug dropdown menu of Visual Studio, select default startup project > Microsoft Teams (browser)
4. Right-click the 'M365Agent' project in Solution Explorer and select Microsoft 365 Agents Toolkit > Select Microsoft 365 Account
5. Sign in to Microsoft 365 Agents Toolkit with a Microsoft 365 work or school account
6. Set Startup Item as Microsoft Teams (browser).
7. Press F5, or select Debug > Start Debugging menu in Visual Studio to start your app
   
8. In the opened web browser, select Add button to install the app in Teams

If you do not have permission to upload custom apps (uploading), Microsoft 365 Agents Toolkit will recommend creating and using a Microsoft 365 Developer Program account - a free program to get your own dev environment sandbox that includes Teams.

Register your app with Azure AD.

1. Register a new application in the Microsoft Entra ID – App Registrations portal.
2. Select New Registration and on the register an application page, set following values:
   • Set name to your app name.
   • Choose the supported account types (any account type will work)
   • Leave Redirect URI empty.
   • Choose Register.
3. On the overview page, copy and save the Application (client) ID, Directory (tenant) ID. You'll need those later when updating your Teams application manifest and in the appsettings.json.
4. Navigate to API Permissions, and make sure to add the follow permissions: Select Add a permission
   • Select Add a permission
   • Select Microsoft Graph -> Delegated permissions.
   • User.Read (enabled by default)
   • Click on Add permissions. Please make sure to grant the admin consent for the required permissions.

Setup

1. Register a new application in the Microsoft Entra ID – App Registrations portal.

NOTE: When you create your app registration, you will create an App ID and App password - make sure you keep these for later.

2. Setup NGROK

• Run ngrok - point to port 3978

  ngrok http 3978 --host-header="localhost:3978"

  Alternatively, you can also use the dev tunnels. Please follow Create and host a dev tunnel and host the tunnel with anonymous user access command as shown below:

  devtunnel host -p 3978 --allow-anonymous

3. Setup for code

• Clone the repository

  git clone https://github.com/OfficeDev/Microsoft-Teams-Samples.git

• Modify the /appsettings.json and fill in the following details:

  • {{ ClientId}} - Generated from Step 1 while doing Microsoft Entra ID app registration in Azure portal.
  • {{ ClientSecret}} - Generated from Step 1, also referred to as Client secret
  • {{ BaseUri }} - Your application's base url. E.g. https://12345.ngrok-free.app if you are using ngrok and if you are using dev tunnels, your URL will be like: https://12345.devtunnels.ms.

• Run the bot from a terminal or from Visual Studio:

  A) From a terminal, navigate to samples/TeamsJS/graph-channel-lifecycle/csharp

  # run the bot
  dotnet run

  B) Or from Visual Studio

  • Launch Visual Studio
  • File -> Open -> Project/Solution
  • Navigate to ChannelLifecycle folder
  • Select ChannelLifecycle.csproj file
  • Press F5 to run the project

4. Setup Manifest for Teams

• This step is specific to Teams.

  • Edit the manifest.json contained in the ./appPackage folder to replace your Microsoft App Id (that was created when you registered your app registration earlier) everywhere you see the place holder string {{Microsoft-App-Id}} (depending on the scenario the Microsoft App Id may occur multiple times in the manifest.json)
  • Edit the manifest.json for validDomains and replace {{domain-name}} with base Url of your domain. E.g. if you are using ngrok it would be https://1234.ngrok-free.app then your domain-name will be 1234.ngrok-free.app and if you are using dev tunnels then your domain will be like: 12345.devtunnels.ms.
  • Zip up the contents of the appPackage folder to create a manifest.zip (Make sure that zip file does not contains any subfolder otherwise you will get error while uploading your .zip package)

• Upload the manifest.zip to Teams (in the Apps view click "Upload a custom app")

  • Go to Microsoft Teams. From the lower left corner, select Apps
  • From the lower left corner, choose Upload a custom App
  • Go to your project directory, the ./appPackage folder, select the zip folder, and choose Open.
  • Select Add in the pop-up dialog box. Your app is uploaded to Teams.

• Upload app manifest file (zip file) to your team

Running the sample.

Grpah-Channel-lifecycel

Further Reading.

sample feature life cycle which includes create, update delete a channel