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page_type products languages title description extensions urlFragment
sample
office-365
javascript
Microsoft Teams NodeJS Helloworld Sample
Microsoft Teams hello world sample app in Node.js which showcase tab, bot and messaging extension.
contentType createdDate
samples
10/19/2022 10:02:21 PM
officedev-microsoft-teams-samples-app-hello-world-nodejs

Microsoft Teams hello world sample app.

  • Microsoft Teams hello world sample app.

Included Features

  • Tabs
  • Bots
  • Messaging Extensions

Interaction with app

HelloWorldGif

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).

Microsoft Teams hello world sample app: Manifest

Prerequisites

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.

  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.

Run the app (Manually Uploading to Teams)

Note these instructions are for running the sample on your local machine, the tunnelling solution is required because the Teams service needs to call into the bot.

1. 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 your bot you will create an App ID and App password - make sure you keep these for later.

2. Setup NGROK

  1. Run ngrok - point to port 3333

    ngrok http 3333 --host-header="localhost:3333"

    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 3333 --allow-anonymous

3. Setup for code

  1. Clone the repository

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

  2. In a terminal, navigate to samples/app-hello-world/nodejs

  3. Install modules

    npm install

  4. Update the custom-environment-variables configuration for the bot to use the MicrosoftAppId and MicrosoftAppPassword, BaseUrl with application base url.

  5. Update the default configuration for the bot to use the appId and appPassword.

  6. Run your app

    npm start

4. Setup Manifest for Teams

  • This step is specific to Teams.

    • Edit the manifest.json contained in the app-hello-world/nodejs/appManifest folder to replace your Microsoft App Id (that was created when you registered your bot earlier) everywhere you see the place holder string <<Your Microsoft App Id>> (depending on the scenario the Microsoft App Id may occur multiple times in the manifest.json)
    • Edit the manifest.json for configurationUrl inside configurableTabs and validDomains. Replace {{domain-name}} with base Url 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.

    Note: If you want to test your app across multi hub like: Outlook/Office.com, please update the manifest.json in the app-hello-world/nodejs/appManifest_Hub folder with the required values.

    • Zip up the contents of the app-hello-world/nodejs/appManifest folder to create a manifest.zip or app-hello-world/nodejs/appManifest_Hub folder into a Manifest_Hub.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 Teams Apps/Manage your apps click "Upload an app". Browse to and Open the .zip file. At the next dialog, click the Add button.)
    • Add the app to personal/team/groupChat scope (Supported scopes)

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

Running the sample

Install App:

InstallApp

Welcome UI:

HelloWorld

Outlook on the web

  • To view your app in Outlook on the web.

  • Go to Outlook on the weband sign in using your dev tenant account.

On the side bar, select More Apps. Your sideloaded app title appears among your installed apps

InstallOutlook

Select your app icon to launch and preview your app running in Outlook on the web

AppOutlook

Note: Similarly, you can test your application in the Outlook desktop app as well.

Office on the web

  • To preview your app running in Office on the web.

  • Log into office.com with test tenant credentials

Select the Apps icon on the side bar. Your sideloaded app title appears among your installed apps

InstallOffice

Select your app icon to launch your app in Office on the web

AppOffice

Note: Similarly, you can test your application in the Office 365 desktop app as well.

Deploy the bot to Azure

To learn more about deploying a bot to Azure, see Deploy your bot to Azure for a complete list of deployment instructions.

Further reading