title: SequelizeConnectionRefusedError: connect ECONNREFUSED 127.0.0.1:3306
body: <p>I'm using Sequelize as an ORM to my node js app and Mysql database , 
  after following some tutorials i m adding this code to connect mysql to the node but after taping npm start i m getting this error : 
  Unable to connect to the database: { SequelizeConnectionRefusedError: connect ECONNREFUSED 127.0.0.1:3306</p>
  
  <pre><code> const Sequelize = require('sequelize');
  
   // Option 1: Passing parameters separately
   const sequelize = new Sequelize('Education', 'root','', {
   host: '127.0.0.1',
   dialect: 'mysql'
   } );
  
    //test db 
   sequelize
  .authenticate()
  .then(() =&gt; {
    console.log('Connection has been established successfully.');
  })
   .catch(err =&gt; {
   console.error('Unable to connect to the database:', err);
  });
  </code></pre>