Tutorial: Create a QnA Bot with Azure Bot Service v4

• 01/28/2020
• 3 minutes to read
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Create a QnA chat bot from the Publish page for an existing knowledge base. This bot uses the Bot Framework SDK v4. You do not need to write any code to build the bot, all the code is provided for you.

In this tutorial, you learn how to:

Prerequisites

You need to have a published knowledge base for this tutorial. If you do not have one, follow the steps in Create and answer from KB tutorial to create a QnA Maker knowledge base with questions and answers.

Create a QnA Bot

Create a bot as a client application for the knowledge base.

1. In the QnA Maker portal, go to the Publish page, and publish your knowledge base. Select Create Bot.

   

   The Azure portal opens with the bot creation configuration.

2. Enter the settings to create the bot:

   Setting	Value	Purpose
   Bot handle	qna-maker-central-us-bot	This is the Azure resource name for the bot.
   Subscription	See purpose.	Select the same subscription as you used to create the QnA Maker resources.
   Resource group	docs	The resource group used for all the bot-related Azure resources.
   Location	west us	The bot's Azure resource location.
   Pricing tier	F0	The free tier for the Azure bot service.
   App name	qna-maker-central-us-bot-app	This is a web app to support your bot only. This should not be the same app name as your QnA Maker service is already using. Sharing QnA Maker's web app with any other resource is not supported.
   SDK Language	C#	This is the underlying programming language used by the bot framework SDK. Your choices are C# or Node.js.
   QnA Auth Key	Do not change	This value is filled in for you.
   App service plan/Location	Do not change	For this tutorial, the location is not important.
   Application Insights	Do not change	Logging is sent to Application Insights.
   Microsoft App ID	Do not change	Active directory user and password is required.

   

   Wait a couple of minutes until the bot creation process notification reports success.

Chat with the Bot

1. In the Azure portal, open the new bot resource from the notification.

   

2. From Bot management, select Test in Web Chat and enter: How large can my KB be?. The bot will respond with:

   The size of the knowledge base depends on the SKU of Azure search you choose when creating the QnA Maker service. Read [here](https://docs.microsoft.com/azure/cognitive-services/qnamaker/tutorials/choosing-capacity-qnamaker-deployment)for more details.

   

   For more information about Azure Bots, see Use QnA Maker to answer questions

Clean up resources

When you are done with this tutorial's bot, remove the bot in the Azure portal.

If you created a new resource group for the bot's resources, delete the resource group.

If you didn't create a new resource group, you need to find the resources associated with the bot. The easiest way is to search by the name of the bot and bot app. The bot resources include:

• The App Service plan
• The Search service
• The Cognitive service
• The App service
• Optionally, it may also include the application insights service and storage for the application insights data

Related to QnA Maker bots

• Healthcare bots use QnA Maker as one of their language models.

More information about bots

For more information about using this service with bots, begin with the following resources:

Next steps

See also

• Manage your knowledge base
• Enable your bot in different channels