api-impresiones/db.js

const mysql = require('mysql2/promise');
const envConfig = require('./envConfigurations/EnvConfigurations');

const pool = mysql.createPool({
  host: envConfig.db.host,
  port: envConfig.db.port,
  user: envConfig.db.user,
  password: envConfig.db.password,
  database: envConfig.db.name,
  waitForConnections: true,
  connectionLimit: 10,
  queueLimit: 40,
  connectTimeout: 5000
});

(async () => {
  try {
    const connection = await pool.getConnection();
    console.log('Conectado con la base de datos');
    connection.release();
  } catch (err) {
    console.error('Error al conectarse con la base de datos:', err.message);
    process.exit(1);
  }
})();

module.exports = pool;
//IO