datafactory

A lightweight node package for creating test data, demo data and fixtures.

Example Usage

import DataFactory from 'datafactory';

let _id = 0;
function generateId() {
  return _id++;
}

// Each root key will become a builder function on the factory
let demoData = new DataFactory({
  organization: {
    _id: generateId,
    name: 'Example organization'
  },

  user: {
    _id: generateId,
    name: 'Joe Smith',
    // You can use a function to build a property for the document
    organizationId: (group) => {
      // Assign the user to the first organization in the group by default
      if (group && group.data.organization) return group.data.organization[0]._id;
    }
  },

  // You can use a function to build the entire document
  tweet: (group) => {
    const tweet = {
      _id: generateId(),
      text: 'Hi!'
    };

    // Assign the tweet to the first user in the group by default
    if (group && group.data.user) {
      tweet.userId = group.data.user[0]._id;
    }

    return tweet;
  }
});

// Generate an organization, a user for the organization, and a tweet for the user -- you can chain calls.
let group = demoData.createGroup().organization().user().tweet({
  text: 'Joe: cool demo data!'
});

// Create another user and a tweet for them
let elisabeth = group.user({
  name: 'Elisabeth'
}).value;

group.tweet({
  userId: elisabeth._id,
  text: 'Elisabeth: Thanks!'
});

console.log('Generated documents\n\n', group.data);

console output

Generated documents

{
  organization: [{
    _id: 0,
    name: 'Example organization'
  }],
  user: [{
    _id: 1,
    name: 'Joe Smith',
    organizationId: 0
  }, {
    _id: 3,
    name: 'Elisabeth',
    organizationId: 0
  }],
  tweet: [{
    _id: 2,
    text: 'Joe: cool demo data!',
    userId: 1
  }, {
    _id: 4,
    text: 'Elisabeth: Thanks!',
    userId: 3
  }]
};

Contributing

Follow the airbnb styleguide.

I recommend setting up the babel and eslint plugins for sublime.