Wrapper for Microsoft QnA Maker for Microsoft Bot Framework

###Short sample

const QnA = require('botbuilder-qna-maker');

// Send request to QnA maker, get an answer
const serviceGuid = '<INSERT SERVICE ID>';
const subscriptionKey = '<INSERT SUBSCRIPTION KEY>';

const qna = new QnA(serviceGuid, subscriptionKey);
const answer = await qna.answer('hi!');

console.log(answer);

###What's it for? This package provides a shortcut to call the Microsoft QnA Maker service and get a response. It works with bots written in Node.js using Microsoft Bot Framework (see the botbuilder package), but actually can be used in any code, not just in a bot.

###Methods and Static Members

The constructor takes two required and one optional parameter:

const qna = new QnA(serviceGuid, subscriptionKey, host);

You can get all of them from the Settings page at qnamaker.ai.

As for the host, by default we're using the West US server ( https://westus.api.cognitive.microsoft.com/qnamaker/v2.0) but you can change it if the service becomes available in another region.

Methods:

• async answer(question) - retrieves an answer and returns it as string, without any metadata.
• async getRawAnswer(question) - retrieves an answer together with some metadata like the original question and the confidence score. Returns an object.

Static Members: QnA.FAILED_ANSWER = 'No good match found in the KB';

This is the answer returned by QnA maker when there is no suitable answer found. You can use it to output your own message:

if (answer === QnA.FAILED_ANSWER) {
  console.log('Oops, no answer found.');
} else { 
  console.log(answer);
}

###Comments and suggestions If you have any comments, contact me here: https://github.com/catcher-in-the-try/