Reject if rowcount == 0 in a post request using tedious

Question

Hello im having trouble rejecting my promise if my request has rowcount == 0, how can i reject if my sql statement returns no rows? Even if it returns 0 rows it resolves.

This is my code

function login(body) {
    return new Promise((resolve, reject) => {   
        var connection = new Connection(config)
        connection.on('connect', function(err){
            if (err){
                 reject(err)
                 console.log(err);
            } 
            else {
               const request = new Request(`SELECT * FROM dba.[user]  WHERE username = '${body.username}' and password = '${body.password}'`, function(err, rowCount){
                    if (err){
                        reject("Sorry not possible")
                    }
                    else if (rowCount == 0) {
                        console.log(rowCount+'rows')
                        reject("No rows returned")
                    }
                })
                var counter = 1
                response = {}
                connection.execSql(request)
                request.on('row', function(columns){
                    response[counter] = {}
                    columns.forEach(function(column){
                         response[counter][column.metadata.colName] = column.value
                    });
                    counter += 1 
                });
                request.on('doneInProc', function () {
                    resolve(response)
                })
            }         
        })
         connection.connect()        
    }) 
}