nodejs

page_type	description	urlFragment	products	languages	extensions
sample	This sample app demonstrates sending change notifications to user presence in Teams based on user presence status. The notifications are sent to user through bot in teams.	officedev-microsoft-teams-samples-graph-change-notification-nodejs	office-teams office office-365	nodejs	contentType createdDate samples 07/07/2021 01:38:26 PM

Change Notification sample using nodejs

Bot Framework v4 ChangeNotification sample.

This sample app demonstrates sending notifications to users when presence status is changed.

Included Features

• Bots
• Graph API
• Change Notifications

Interaction with app

Prerequisites

• Microsoft Teams is installed and you have an account (not a guest account)
• To test locally, NodeJS must be installed on your development machine (version 16.14.2 or higher)
• dev tunnel or ngrok latest version or equivalent tunneling solution
• M365 developer account or access to a Teams account with the
• Teams Toolkit for VS Code or TeamsFx CLI

Run the app (Using Teams Toolkit for Visual Studio Code)

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

Note: Please create and install self-signed certificate before running this sample using toolkit or manually.

1. Ensure you have downloaded and installed Visual Studio Code
2. Install the Teams Toolkit extension
3. Select File > Open Folder in VS Code and choose this samples directory from the repo
4. Using the extension, sign in with your Microsoft 365 account where you have permissions to upload custom apps
5. Select Debug > Start Debugging or F5 to run the app in a Teams web client.
6. In the browser that launches, select the Add button to install the app to Teams.

If you do not have permission to upload custom apps (sideloading), Teams 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.

Setup

Register you 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 .env.
4. Under Manage, select Expose an API.
5. Select the Set link to generate the Application ID URI in the form of api://botid-{AppID}. Insert your fully qualified domain name (with a forward slash "/" appended to the end) between the double forward slashes and the GUID. The entire ID should have the form of: api://botid-{AppID}
   • ex: api://botid-00000000-0000-0000-0000-000000000000.
6. Select the Add a scope button. In the panel that opens, enter access_as_user as the Scope name.
7. Set Who can consent? to Admins and users
8. Fill in the fields for configuring the admin and user consent prompts with values that are appropriate for the access_as_user scope:
   • Admin consent title: Teams can access the user’s profile.
   • Admin consent description: Allows Teams to call the app’s web APIs as the current user.
   • User consent title: Teams can access the user profile and make requests on the user's behalf.
   • User consent description: Enable Teams to call this app’s APIs with the same rights as the user.
9. Ensure that State is set to Enabled
10. Select Add scope
    • The domain part of the Scope name displayed just below the text field should automatically match the Application ID URI set in the previous step, with /access_as_user appended to the end:
      • `api://botid-00000000-0000-0000-0000-000000000000/access_as_user.
11. In the Authorized client applications section, identify the applications that you want to authorize for your app’s web application. Each of the following IDs needs to be entered:
    • 1fec8e78-bce4-4aaf-ab1b-5451cc387264 (Teams mobile/desktop application)
    • 5e3ce6c0-2b1f-4285-8d4b-75ee78787346 (Teams web application)
12. Navigate to API Permissions, and make sure to add the follow permissions:

• Select Add a permission
•  Select Microsoft Graph -> Delegated permissions.
  • User.Read (enabled by default)
  • Presence.Read
  • Presence.Read.All
• Click on Add permissions. Please make sure to grant the admin consent for the required permissions.

13. Navigate to Authentication If an app hasn't been granted IT admin consent, users will have to provide consent the first time they use an app.

• Set a redirect URI:
  • Select Add a platform.
  • Select Web.
  • Enter the redirect URI for the app in the following format: https://token.botframework.com/.auth/web/redirect.

14. Navigate to the Certificates & secrets. In the Client secrets section, click on "+ New client secret". Add a description(Name of the secret) for the secret and select “Never” for Expires. Click "Add". Once the client secret is created, copy its value, it need to be placed in the .env.

15. Setup for Bot

    • In Azure portal, create a Azure Bot resource.
    • Ensure that you've enabled the Teams Channel
    • While registering the bot, use https://<your_tunnel_domain>/api/messages as the messaging endpoint. NOTE: When you create app registration, you will create an App ID and App password - make sure you keep these for later.

Instruction on setting connection string for bot authentication on the behalf of user

• Select Add OAuth Connection Settings.

• Complete the form as follows.

a. Enter a name for the connection. You'll use this name in your bot in the .env file. For example BotTeamsAuthADv1.

b. Service Provider. Select **Azure Active Directory**.

c. Client id. Enter the Application (client) ID that you recorded for your Azure identity provider app in the steps above.

d. Client secret. Enter the secret that you recorded for your Azure identity provider app in the steps above.

e. Grant Type. Enter authorization_code.

f. Login URL. Enter https://login.microsoftonline.com.

g. Tenant ID, enter the Directory (tenant) ID that you recorded earlier for your Azure identity app or common depending on the supported account type selected when you created the identity provider app.

h. For Resource URL, enter https://graph.microsoft.com/

i. Provide  Scopes like "Presence.Read, Presence.Read.All"

3. 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

4. Setup for code

• Clone the repository

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

• Update the .env configuration for the bot to use the MicrosoftAppId and MicrosoftAppPassword,connectionName and notificationUrl (Note the MicrosoftAppId is the AppId created in step 1 (Setup for Bot), the MicrosoftAppPassword is referred to as the "client secret" in step 1 (Setup for Bot) and you can always create a new client secret anytime.) and connectionName we can get from step "Select your bot channel registration link." and for the notificationUrl eg.1234.ngrok-free.app/api/notifications

• Open from Visual Studio code

  • Launch Visual Studio code
  • File -> Open Folder
  • Navigate to samples/graph-change-notification/nodejs folder
  • Run npm command in the terminal

    npm install

  • Press F5 to run the project

5. Setup Manifest for Teams

• This step is specific to Teams.

  • Edit the manifest.json contained in the ./appManifest 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 appManifest 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 ./appManifest folder, select the zip folder, and choose Open.
  • Select Add in the pop-up dialog box. Your app is uploaded to Teams.

Note: If you are facing any issue in your app, please uncomment this line and put your debugger for local debug.

Running with sample

• After sucessfully installation of app you will get a sign in button. When sign in is complete then you get your current status in adapative card

• After that when the user status chagnes you will get notify about their status:
• Change user status from available to busy like

Further reading

• Bot Authentication
• Change Notification
• App in Catalog
• Bot Framework Documentation
• Bot Basics