Seeding data with Sequelize

We should fill the empty Posts table with our fake data. To accomplish this, we will use Sequelize's feature for seeding data to our database.

Create a new folder, called seeders:

mkdir src/server/seeders

Now, we can run our next Sequelize CLI command, in order to generate a boilerplate file:

sequelize seed:generate --name fake-posts --seeders-path src/server/seeders

Seeders are great for importing test data into a database for development. Our seed file has the timestamp and the words fake-posts in the name, and should look as follows:

'use strict';

module.exports = {
  up: (queryInterface, Sequelize) => {
    /*
      Add altering commands here.
      Return a promise to correctly handle asynchronicity.
      
      Example:
      return queryInterface.bulkInsert('Person', [{
        name: 'John Doe',
        isBetaMember...