database.js

var Sequelize = require('sequelize');

var sequelize = new Sequelize('tips_test', 'zx', 'admin', {
      dialect: "postgres", // or 'sqlite', 'postgres', 'mariadb'
      host: "172.31.214.169",
      port:    5432, // or 5432 (for postgres)
    });
 
sequelize
.authenticate()
.complete(function(err) {
  if (!!err) {
    console.log('Unable to connect to the database:', err)
  } else {
    console.log('Connection has been established successfully.')
  }
});


var Tip = sequelize.define('Tip', {
  content: Sequelize.STRING,
  other: Sequelize.STRING
});

var Word = sequelize.define('Word', {
  content: Sequelize.STRING,
  other: Sequelize.STRING
});

// var TipWord = sequelize.define('TipWord', {
//   tip_id: Sequelize.INTEGER,
//   word_id: Sequelize.INTEGER,
//   other: Sequelize.STRING
// });

Tip.hasMany(Word);
Word.hasMany(Tip);

sequelize
  .sync({force: true})
  .complete(function(err) {
     if (!!err) {
       console.log('An error occurred while creating the table:', err)
     } else {
       console.log('It worked!')
     }
  })