We Don’t Need No Stinkin’ App Server!

Building a Two-Tier Mobile App

Pat Patterson@metadaddy

Principal Developer Evangelistsalesforce.com

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Agenda

• Database-as-a-Service

• Hybrid Mobile App Frameworks

• Combining the two approaches for rapid mobile app development

Agenda

• Database-as-a-Service

• Hybrid Mobile App Frameworks

• Combining the two approaches for rapid mobile app development

3-Tier Architecture

3-Tier Architecture

3-Tier Architecture

3-Tier Architecture

3-Tier Architecture

3-Tier Architecture

3-Tier Architecture

2-Tier Architecture

2-Tier Architecture

iOSAndroid

2-Tier Architecture

iOSAndroid

database.comSimpleDB/DynamoDB

GAE DatastoreCouchDBMongoDB

…

RESTful Database APIResource Name URI Description

Versions / List of supported API versions

Resources by Version

/vXX.X/ Available resources for this version

Describe Global /vXX.X/sobjects/ Available objects and metadata

SObject Basic Info /vXX.X/sobjects/SObject/ Metadata for object

SObject Describe /vXX.X/sobjects/SObject/describe/ Metadata for object fields etc

SObject Rows /vXX.X/sobjects/SObject/id/ Access record by native ID

SObject Rows by External ID

/vXX.X/sobjects/SObject/fieldName/fieldValue

Access record by external ID

User Password /vXX.X/sobjects/User/userId/password Set/reset user password

Query /vXX.X/query/?q=soql SOQL query

Search /vXX.X/search/?s=sosl SOSL query

http://www.salesforce.com/us/developer/docs/dbcom_api_rest/index.htm

Agenda

• Database-as-a-Service

• Hybrid Mobile App Frameworks

• Combining the two approaches for rapid mobile app development

Agenda

• Database-as-a-Service

• Hybrid Mobile App Frameworks

• Combining the two approaches for rapid mobile app development

Mobile App Spectrum

Objective C /Java

Native

HTML5 +CSS +

JavaScript

Hybrid

HTML5 +CSS +

JavaScript

Web

Atwood’s Law

“Any application that can be written in JavaScript, will eventually be written in

JavaScript.”

http://www.codinghorror.com/blog/2007/07/the-principle-of-least-power.html

Proof Point: LinkedIn iPad App

“Yes, only one screen in the entire LinkedIn iPad app is actually native.

The rest is good ol’ HTML5-based mobile web technology, running in the

browser.”

http://venturebeat.com/2012/05/02/linkedin-ipad-app-engineering/

Hybrid Mobile App Platforms

• Apache Cordova (aka [Adobe] PhoneGap)• Trigger.io• Appcelerator Titanium• Ansca Corona• Many, many, more

– http://en.wikipedia.org/wiki/Mobile_application_development

Salesforce Mobile SDK

• Hybrid support built on PhoneGap 1.2+ OAuth 2.0 built in+ JavaScript binding to database.com REST API

• Current Version 1.1– Added Secure Offline API, more flexible OAuth 2.0 and more

• Version 1.2 coming soon– Adds PIN protection, session timeout and more

2012

1.0Dec 2011

1.1Mar 2012

1.2Soon!

• And…

It’s 100% open source

Agenda

• Database-as-a-Service

• Hybrid Mobile App Frameworks

• Combining the two approaches for rapid mobile app development

Agenda

• Database-as-a-Service

• Hybrid Mobile App Frameworks

• Combining the two approaches for rapid mobile app development

Code Time…

http://bit.ly/gc12-mobile-demo

Conclusion

• Database-as-a-Service can dramatically simplify your web app’s back end

• Frameworks such as Apache Cordova accelerate mobile app development

• Combine the two for rapid mobile app development

Thank You!Pat Patterson@metadaddy

Principal Developer Evangelistsalesforce.com