Connect to SQL Server and Database

app.js

const Sequelize = require('sequelize');
const sequelize = new Sequelize('database', 'username', 'password', {
  host: 'SQL.server.address.database.net',
  dialect: 'mssql',
  dialectOptions: {
    encrypt: true;
  }
});

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