NodeJS query MySql database

queryMysqlDatabase.js

import mysql from 'mysql';

const {
  DB_HOST,
  DB_USER,
  DB_PASSWORD,
  DB_NAME
} = process.env

export const database = mysql.createPool({
  connectionLimit: 10,
  host: DB_HOST,
  user: DB_USER,
  password: DB_PASSWORD,
  database: DB_NAME,
  ssl: true
});

export const queryDatabase = async (sql) => {
  return new Promise((resolve, reject) => {
    database.query(sql, (error, results) => {
      if (error) reject(error);
      resolve(results);
    });
  });
};