**IMPORTANT**: If you follow this series recently you might use axios version newer than 0.12.0. To follow along this series without any problem just make sure that you use older version (0.12.0). You can learn about this conflict in episode #19.5 (http://remzolotykh.net/react-and-redux-19-5-some-corrections-and-feedback-from-viewers/)

Goal for this episode is to validate data on server, send back error status and messages and display these errors to user.

Repository: https://github.com/Remchi/reddice
Blog post: http://remzolotykh.net/react-and-redux-07-user-sign-up-server-side-validation/