sequelize model & sync

sequelize-model-sync.js

'use strict';
const {
  Model
} = require('sequelize');
module.exports = (sequelize, DataTypes) => {
  class Service extends Model {
    /**
     * Helper method for defining associations.
     * This method is not a part of Sequelize lifecycle.
     * The `models/index` file will call this method automatically.
     */
    static associate(models) {
      // define association here
      this.hasMany(models.Proof)
      this.hasMany(models.Parser)
    }
  };
  Service.init({
    name: DataTypes.STRING,
    public: {
      type: DataTypes.BOOLEAN,
      defaultValue: false
    }
  }, {
    sequelize,
    modelName: 'Service',
  });
  return Service;
};

....

/*
  Later on, after you've instantiated all your models
*/
// I usually have an additional SYNC_DB env flag here, as with force: true it's going to wipe the db constantly.
if (process.env.NODE_ENV == 'development') {
  db.sequelize.sync({ force: true })
    .then(() => {
      // Seed your database here
      devSeeds(db);
    })
}