JAVASCRIPT

sequelize init connection set up nodejs node

const Sequelize = require('sequelize');

const path = 'mysql://user12:12user@localhost:3306/testdb';
const sequelize = new Sequelize(path, { operatorsAliases: false });

sequelize.authenticate().then(() => {
  console.log('Connection established successfully.');
}).catch(err => {
  console.error('Unable to connect to the database:', err);
}).finally(() => {
  sequelize.close();
});

How to create sequelize connection in javascript

// Include Sequelize module
const Sequelize = require('sequelize')
  
// Creating new Object of Sequelize
const sequelize = new Sequelize(
    'DATABASE_NAME',
    'DATABASE_USER_NAME',
    'DATABASE_PASSWORD', {
  
        // Explicitly specifying 
        // mysql database
        dialect: 'mysql',
  
        // By default host is 'localhost'           
        host: 'localhost'
    }
);
  
// Exporting the sequelize object. 
// We can use it in another file
// for creating models
module.exports = sequelize