Sequelize is a promise-based ORM for Node.js and io.js. It supports the dialects PostgreSQL, MySQL, MariaDB, SQLite and MSSQL and features solid transaction support, relations, read replication and more. Installation Example usage var Sequelize = require('sequelize'); var sequelize = new Sequelize('database', 'username', 'password'); var User = sequelize.define('user', { username: Sequelize.STRING