DbQueries.js

// Count Query
MongoClient.connectAsync(uri)
    .then((db) => {
        return db.collection(collection).countAsync(session.userData.selector);
    })
    .then((count) => {
        console.log(`Success: Total of ${count} records`);
        session.userData.count = count;
    })
    .catch((err) => {
        throw err;
    });

// Find Query
MongoClient.connectAsync(uri)
    .then((db) => {
        return db.collection(collection).findAsync(session.userData.selector, {
            'limit': 5,
            'skip': session.userData.cursor
        });
    })
    .then((cursor) => {
        return cursor.toArrayAsync();
    })
    .then((arr) => {
        let tmpDeck = [];
        createDeck(session, tmpDeck, arr, 5);
        let msg = new builder.Message(session)
            .attachmentLayout(builder.AttachmentLayout.carousel)
        return session.send(msg);
    })
    .then(() => {
        session.userData.cursor += 5;
        return session.replaceDialog('moreResults:/');
    })
    .catch((err) => {
        throw err;
    });