Making connected apps with Backend-as-a-Service

or how you can use parse.com to harness the power of cloud in your applications

Varun Torka Co-Founder, HereNow

Computing then and now

Devices are now always with you, always connected

Computing then and now

Smaller, but much more powerful thanks to the cloud

The Cloud

Always available

~Infinite compute

~Infinite storage

Users expect all their data (and friends) instantly

Building a cloud backend Auto-Scaling

Server maintenance

Failure recovery

Upgradation

Regular backups

Consistency

CDN

Upfront infrastructure expenses

As an App Developer, I dont want to deal with all this

Enter ?aaS

IaaS

PaaS

SaaSEnd Users

Application Developers

Network Architects

Why buy, when you can rent?

Enter ?aaS

IaaS

PaaS

SaaSEnd Users

Application Developers

Network Architects

PaaS provides APIs for us to use cloud resources directly

Parse.com Acquired by Facebook in April, 2013 Free till 30 requests/second Libraries for Android, iOS, OSX, JavaScript, PHP

and .NET Also supports REST interface

Typical actions Login (native, facebook, twitter)

Upload/Download a file from server

Create database tables

Add rows to the table

Query db table for particular sets of data

Cache server data locally

Login

Its that simple!

Table session on Parse serversobjectId Order speakerName categoryasdaf42 13 thevarun crisptalk

Saving an object / adding a row

Retrieving a set of objects / filtering rows

Table query

File transferSaving

Retrieving

Table session on Parse serversobjectId Order speakerName category soundfile

asdaf42 13 Varun T crisptalk

dka22mp crisptalk talk_on_parse.mp3

https://github.com/thevarun/DroidCon

Demo