Regarding Data Persistence during the prototype development that gets you the funding for actual product development.

Fumitoshi Ogata

How do you do backend development when you are developing prototype?

Your boss often cares only the front-end.Your boss(non-engineer type)might even

think that you were wasting timeif you spend much time for developing

back-end.

To begin with, prototype development often fails and stops midway.

So don’t worry about spending too much time with back-end development.

Here are three things I use most often.

1.Parse.com(Baas)2.Grape(Rails module)

Fist,You know Parse.com.It’s like “BaaS.”

Using this service, you can get REST API.

You probably know a lot of services as Baas.Very famous companies are buying or cooperating companies which provide Baas service.And these companies are growing in numbers.

Parse.com Facebook bought

Kinvey Partnered with Google

Appcelerator Cloud Company which provides TitaniumMobile

Windows Azure Mobile Service It’s Micorosoft!

Amazon Simple Notification Service Amazon, too!

Get ID & Secret

Create table Create Column

Select Insert

Too easy, right?

If You really want to have your own server for providing API,

Grape(rails module) is a good one.

These is how to use Here is an example of using set and get.

Too easy, right?

Don’t spend too much time with back-end development,

Focus on front-end and get funding for true-development!