Command bot in Teams

TeamsFx SDK provides a convenient class TeamsFxBotCommandHandler, to handle when a command is triggered from Teams conversation message. Create a new file in the path src/doSomethingCommandHandler.js.

Add the following code to the doSomethingCommandHandler.js file:

const doSomethingCard = require("./adaptiveCards/doSomethingCommandResponse.json");
const { AdaptiveCards } = require("@microsoft/adaptivecards-tools");
const { CardFactory, MessageFactory } = require("botbuilder");

class DoSomethingCommandHandler {
  triggerPatterns = "doSomething";

  async handleCommandReceived(context, message) {
    // verify the command arguments which are received from the client if needed.
    console.log(`App received message: ${message.text}`);

    const cardData = {
      title: "doSomething command is added",
      body: "Congratulations! You have responded to doSomething command",
    };

    const cardJson = AdaptiveCards.declare(doSomethingCard).render(cardData);
    return MessageFactory.attachment(CardFactory.adaptiveCard(cardJson));
  }
}

module.exports = {
  DoSomethingCommandHandler,
};

TeamsFx SDK provides a convenient class TeamsFxBotCommandHandler, to handle when a command is triggered from Teams conversation message. Create a new file in the path src/doSomethingCommandHandler.ts.

Add the following code to the doSomethingCommandHandler.ts file:

/** TypeScript **/
import { Activity, CardFactory, MessageFactory, TurnContext } from "botbuilder";
import {
 CommandMessage,
 TeamsFxBotCommandHandler,
 TriggerPatterns,
 MessageBuilder,
} from "@microsoft/teamsfx";
import doSomethingCard from "./adaptiveCards/doSomethingCommandResponse.json";
import { AdaptiveCards } from "@microsoft/adaptivecards-tools";
import { CardData } from "./cardModels";

export class DoSomethingCommandHandler implements TeamsFxBotCommandHandler {
 triggerPatterns: TriggerPatterns = "doSomething";

 async handleCommandReceived(
   context: TurnContext,
   message: CommandMessage
 ): Promise<string | Partial<Activity>> {
   // verify the command arguments which are received from the client if needed.
   console.log(`App received message: ${message.text}`);

   const cardData: CardData = {
     title: "doSomething command is added",
     body: "Congratulations! You have responded to doSomething command",
   };

   const cardJson = AdaptiveCards.declare(doSomethingCard).render(cardData);
   return MessageFactory.attachment(CardFactory.adaptiveCard(cardJson));
 }
}

TeamsFx .NET SDK provides an interface ITeamsCommandHandler for command handler to handle when a command is triggered from Teams conversation message. Create a new file in the path Commands/DoSomethingCommandHandler.cs.

Add the following code to the DoSomethingCommandHandler.cs:

using MyCommandApp.Models;
using AdaptiveCards.Templating;
using Microsoft.Bot.Builder;
using Microsoft.Bot.Schema;
using Microsoft.TeamsFx.Conversation;
using Newtonsoft.Json;

namespace MyCommandApp.Commands
{
    public class DoSomethingCommandHandler : ITeamsCommandHandler
    {
        private readonly ILogger<HelloWorldCommandHandler> _logger;
        private readonly string _adaptiveCardFilePath = Path.Combine(".", "Resources", "DoSomethingCommandResponse.json");

        public IEnumerable<ITriggerPattern> TriggerPatterns => new List<ITriggerPattern>
        {
            new RegExpTrigger("doSomething")
        };

        public HelloWorldCommandHandler(ILogger<HelloWorldCommandHandler> logger)
        {
            _logger = logger;
        }

        public async Task<ICommandResponse> HandleCommandAsync(ITurnContext turnContext, CommandMessage message, CancellationToken cancellationToken = default)
        {
            _logger?.LogInformation($"App received message: {message.Text}");

            // Read adaptive card template
            var cardTemplate = await File.ReadAllTextAsync(_adaptiveCardFilePath, cancellationToken);

            // Render adaptive card content
            var cardContent = new AdaptiveCardTemplate(cardTemplate).Expand
            (
                new HelloWorldModel
                {
                    title: "doSomething command is added",
                    body: "Congratulations! You have responded to doSomething command",
                }
            );

            // Build attachment
            var activity = MessageFactory.Attachment
            (
                new Attachment
                {
                    ContentType = "application/vnd.microsoft.card.adaptive",
                    Content = JsonConvert.DeserializeObject(cardContent),
                }
            );

            // send response
            return new ActivityCommandResponse(activity);
        }
    }
}

/** Update ConversationBot  in src/internal/initialize.js(ts) **/
const commandApp = new ConversationBot({
  //...
  command: {
    enabled: true,
    commands: [ 
      new HelloWorldCommandHandler(),
      new DoSomethingCommandHandler()], // newly added command handler
  },
});

/** Update ConversationBot in Program.cs **/
builder.Services.AddSingleton<HelloWorldCommandHandler>();
builder.Services.AddSingleton<DoSomethingCommandHandler>(); // Add doSomething command handler to serrvice container
builder.Services.AddSingleton(sp =>
{
    var options = new ConversationOptions()
    {
        Adapter = sp.GetService<CloudAdapter>(),
        Command = new CommandOptions()
        {
            Commands = new List<ITeamsCommandHandler>
            { 
                sp.GetService<HelloWorldCommandHandler>(),
                sp.GetService<DoSomethingCommandHandler>(),  // Register doSomething command handler to ConversationBot
            }
        }
    };

    return new ConversationBot(options);
});