csharp

Using this C# sample, a bot can receive all channel messages with RSC without @mention. For reference please check Receive Channel messages with RSC

This feature shown in this sample is currently available in Public Developer Preview only.

Key features

• Showing messages based on option selected

Prerequisites

• .NET Core SDK version 3.1

  # determine dotnet version
  dotnet --version

• Publicly addressable https url or tunnel such as ngrok or Tunnel Relay

Setup

1. Run ngrok - point to port 3978

# ngrok http -host-header=rewrite 3978

2. Create a Bot Registration In Azure portal, create a Bot Framework registration resource.

3. Modify the manifest.json in the /AppManifest folder and replace the {{BOT-ID}} with the id from step 2.

4. Zip the contents of AppManifest folder into a manifest.zip, and use the manifest.zip to deploy in app store or add to Teams as in step 7.

5. Modify the /appsettings.json and fill in the {{ Bot Id }},{{ Bot Password }} with the id from step 2.

• 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 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) also update the <<DOMAIN-NAME>> with the ngrok URL`

  • Zip up the contents of the appPackage folder to create a manifest.zip

  • Sideload in a team to test

    • Select or create a team
    • Select the ellipses ... from the left pane. The drop-down menu appears.
    • Select Manage Team, then select Apps
    • Then select Upload a custom app from the lower right corner.
    • Then select the manifest.zip file from appPackage, and then select Add to add the bot to your selected team.

To try this sample

• In a terminal, navigate to ReceiveMessagesWithRSC

  # change into project folder
  cd # ReceiveMessagesWithRSC

• Run the bot from a terminal or from Visual Studio, choose option A or B.

  A) From a terminal

  # run the bot
  dotnet run

  B) Or from Visual Studio

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

Interacting with the bot in Teams

Select a channel and enter a message in the channel for your bot.

The bot receives the message without being @mentioned.

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

• Bot Framework Documentation
• Bot Basics
• Activity processing
• Azure Bot Service Introduction
• Azure Bot Service Documentation
• .NET Core CLI tools
• Azure CLI
• Azure Portal
• Language Understanding using LUIS
• Channels and Bot Connector Service