Drupal is doing a great job of managing and organizing your content, but your content doesn't have to end at Drupal's front door; how do we get all of that juicy, structured data out of Drupal and into other websites, mobile apps, or other data stores?

Have you ever had to extract data from Drupal Entities? If so, I'm sure you're aware of the fact that it can be a painful process. This session presents a solution for distilling Drupal Entities into human-readable documents that can be easily consumed by other modules and services, like MongoDB, Redis, or even Google Spreadsheets. It will also demonstrate how a modular, organized method of data extraction can be used to build headless Drupal websites, and reactive Drupal interfaces.

https://2015.badcamp.net/session/extracting-data-drupal-entities-without-dying-inside