How to use both English and French QnaMaker on Azure Bot Service at the same time?

Question

We have a chatbot and a button beside it which can change the language of bot between English and French. I also have a QnAmaker contains both English and French questions. Is there a way for us to only handle English questions when bot is at English mode? Same goes to French.

Note: my bot react like this:
    user: what is teww?
                       Do you mean this, select one of question below: BOT
                         1. French question
                         2. English question
                         3  French question

I want prevent this from happening, I am thinking about creating two qnamaker one for french one for english. however I don't know to handle this qna changes in the azure bot service? is there a way to work around it?

Platform: Azure Bot Service Node.JS Microsoft QnA Maker

Answer 1

Yes, you can create 2 QnAMaker knowledge bases individual for your English and French questions. And you can leverage Text Analytics API to detect user input language in bot's recevie middleware which shows at Determine the locale by using analytics.

Please refer to the following code snippet:

var recognizer1 = new cognitiveservices.QnAMakerRecognizer({
    knowledgeBaseId: <knowledgeBaseId_1>,
    subscriptionKey: <subscriptionKey_1>,
    top: 4
});

var basicQnAMakerDialog = new cognitiveservices.QnAMakerDialog({
    recognizers: [recognizer1],
    qnaThreshold: 0.3,
});
var recognizer2 = new cognitiveservices.QnAMakerRecognizer({
    knowledgeBaseId: <knowledgeBaseId_2>,
    subscriptionKey: <subscriptionKey_2>,
    top: 4
});

var basicQnAMakerDialog2 = new cognitiveservices.QnAMakerDialog({
    recognizers: [recognizer2],
    qnaThreshold: 0.3,
});

bot.dialog('en', basicQnAMakerDialog);
bot.dialog('zh', basicQnAMakerDialog2);

bot.dialog('/', [(session, args) => {
    switch (session.preferredLocale()) {
        case 'zh':
            session.replaceDialog('zh', args)
            break;
        case 'en-US':
        default:
            session.replaceDialog('en', args)
            break;
    }
}])

bot.use({
    receive: function (event, next) {
        if (event.text) {
            var options = {
                method: 'POST',
                url: 'https://westus2.api.cognitive.microsoft.com/text/analytics/v2.0/languages?numberOfLanguagesToDetect=1',
                body: {
                    documents: [{
                        id: 'message',
                        text: event.text
                    }]
                },
                json: true,
                headers: {
                    'Ocp-Apim-Subscription-Key': '230f82f08c014accbd067ddc2c0ea98f'
                }
            };
            request(options, function (error, response, body) {
                if (!error && body) {
                    if (body.documents && body.documents.length > 0) {
                        var languages = body.documents[0].detectedLanguages;
                        if (languages && languages.length > 0) {
                            event.textLocale = languages[0].iso6391Name;
                        }
                    }
                }
                next();
            });
        } else {
            next();
        }
    }
});