Hands-On Full-Stack Web Development with GraphQL and React

Importing models with Sequelize

We want to import all of our database models at once, in a central file. Our database connection instantiator will then use this file on the other side.

Create an index.js file in the models folder, and fill in the following code:

import Sequelize from 'sequelize';if (process.env.NODE_ENV === 'development') {  require('babel-plugin-require-context-hook/register')()}export default (sequelize) => {  let db = {};  const context = require.context('.', true, /^\.\/(?!index\.js).*\.js$/,    'sync')  context.keys().map(context).forEach(module => {    const model = module(sequelize, Sequelize);    db[model.name] = model;  });  Object.keys(db).forEach((modelName) => {    if (db[modelName].associate) {      db[modelName].associate(db);