server.js

    const { sql, getPool } = require(“./mssql.js”);
    var notifier = require(‘./notifier.js’)

    notifier.on(‘mssql_connected’, () => {
    notifier.emit(‘start_process’);
    })

    notifier.on(‘mssql_connect_error’, () => {
    console.log(‘Impossible to connect to mssql !’);
    })

    /************************************************/

    notifier.on(‘start_process’, () => {

    getPool().request()
    .query(‘select count(*) from [test].[dbo].[TABLE]’, function(err, data) {

    if(err)
    { console.log(‘query error >’,err);
    throw err;
    }
    else {
    console.log(‘query ok >’,data.recordset);
    }
    });
    });