# Echo bot

## Summary

This bot has been created using [Bot Framework](https://dev.botframework.com). It shows how to create a simple bot that accepts input from the user and echoes it back.

## Prerequisites

- [Node.js](https://nodejs.org) version 10.14.1 or higher

    ```bash
    # determine node version
    node --version
    ```

## To try this sample locally

- Clone the repository

    ```bash
    git clone [Placeholder]
    ```

- In a console, navigate to [Placeholder]

    ```bash
    cd [Placeholder]
    ```

- Install modules

    ```bash
    npm install
    ```

- Start the bot

    ```bash
    npm start
    ```

## Testing the bot using Bot Framework Emulator

[Bot Framework Emulator](https://github.com/microsoft/botframework-emulator) is a desktop application that allows bot developers to test and debug their bots on localhost or running remotely through a tunnel.

- Install the Bot Framework Emulator version 4.3.0 or greater from [here](https://github.com/Microsoft/BotFramework-Emulator/releases)

### Connect to the bot using Bot Framework Emulator

- Launch Bot Framework Emulator
- File -> Open Bot
- Enter a Bot URL of `http://localhost:3978/api/messages`

## (Opt.) Deploy the bot to Azure

To learn more about deploying a bot to Azure, see [Deploy your bot to Azure](https://aka.ms/azuredeployment) for a complete list of deployment instructions.

## (Opt.) Testing Direct Line token generation

- [Connect to Direct Line](https://learn.microsoft.com/azure/bot-service/bot-service-channel-connect-directline?view=azure-bot-service-4.0)

- Add `DirectLineSecret` to `.env`

    ```bash
    DirectLineSecret=YOUR_DIRECT_LINE_SECRET
    ```

- Start the bot

    ```bash
    npm start
    ```

- Open [PostMan](https://www.postman.com/) and setup a post request to http://localhost:3978/directline/token
 with the following json request body:

    ```json
    {
        "user": "USER_ID"
    }
    ```

    Then you can see the Direct Line token generated with `YOUR_DIRECT_LINE_SECRET` and `USER_ID`:

    ```json
    {
        "conversationId": "XXXXX",
        "token": "XXXXX",
        "expires_in": 3600
    }
    ```

## Further reading

- [Bot Framework Documentation](https://docs.botframework.com)
- [Bot Basics](https://docs.microsoft.com/azure/bot-service/bot-builder-basics?view=azure-bot-service-4.0)
- [Activity processing](https://learn.microsoft.com/azure/bot-service/bot-builder-concept-activity-processing?view=azure-bot-service-4.0)
- [Azure Bot Service Introduction](https://docs.microsoft.com/azure/bot-service/bot-service-overview-introduction?view=azure-bot-service-4.0)
- [Azure Bot Service Documentation](https://docs.microsoft.com/azure/bot-service/?view=azure-bot-service-4.0)
- [Azure CLI](https://docs.microsoft.com/cli/azure/?view=azure-cli-latest)
- [Azure Portal](https://portal.azure.com)
- [Language Understanding using LUIS](https://learn.microsoft.com/azure/cognitive-services/luis/)
- [Channels and Bot Connector Service](https://learn.microsoft.com/azure/bot-service/bot-concepts?view=azure-bot-service-4.0)
- [TypeScript](https://www.typescriptlang.org)
- [Restify](https://www.npmjs.com/package/restify)
- [dotenv](https://www.npmjs.com/package/dotenv)

<img src="https://m365-visitor-stats.azurewebsites.net/sp-dev-fx-webparts/samples/react-bot-framework-secure/bot" />