Azure mssql connection nodejs - Unhandled promise rejection

I've recently started using Microsoft Azure services. I created a database and I'm trying to connect to it using nodejs. I was using mysql module to connect to databases, but now I have to use the mssql module. I tried to work through it using some examples from the documentation but I can't get it done.

Here is my connection:

    let sql = require('mssql');
    let config = require('./config');
    const pool1 = new sql.ConnectionPool(config, err => {
    if (err) throw err

    // Query

    pool1.request() // or: new sql.Request(pool1)
        .query('select * from number', (err, result) => {
            // ... error checks
            if (err) throw err
            console.dir(result)
            console.log("connected")
        })

})

My config:

connection: {
        server    : 'serverName.database.windows.net',
        user     : 'user@serverName',
        password : 'password',
        database : 'dbName',
        port: 1433,
        options: {
            encrypt: true
        }
    }

Ultimately the error I ended up with is:

(node:2036) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): ReferenceError: value is not defined

via Bogdan Daniel