How to Create a Facebook App
with Java
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Introduction
Craig Schwarzwald
Author / Contributor:
OCPsoft.org
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Agenda
What's in store:
Create an app from scratch
● Host it on the cloud
● Add Facebook functionality
● Make it into a game
● Use Integration tests for our test strategy
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What we believe
Simpler is better.
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Complexity and Fragmentation
Facebook APIs and SDKs:
JavaScript
PHP
IOS
Android
Graph API
Depricated/Replaced SDKs and APIs:
Python SDK
C# SDK
Facebook iPhone SDK
Old REST API
I just want a way to get started.
Red Hat opensource tools:
OpenShift – free cloud hosting
Hibernate – Easy access to store/retrieve data
Arquillian – Automated Integration tests.
Forge – Keeping everything simple!
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Live Demo
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The Demo App
Useful Facebook app strategies
●
Use minimal JavaScript, just to make Facebook API calls.
●
Have a WebService which contains all our business logic.
Pass information to/from our UI and to/from our Database via
http GET and POST calls.
●
Use automated Integration tests to make sure our entire app
works correctly.
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Installing Javascript SDK
FB API call for MyInfo
FB API call for FriendsInfo
Verify functionality on Facebook
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Quick update to Entities
Create our WebService functionality
Verify WebService is set up
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WebService – Create a Player
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Call WebService from JavaScript
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Call WebService from JavaScript
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Let’s create our game
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Creating the random Game link - 1
Creating the random Game link - 2
Add the Game Link to Player
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WebService to process answers
Submit Answers from JavaScript
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View the game on Facebook
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What's needed in testing?
Tests should live within the code.
● Tests need to be fast!
● Tests should not rely on mocks!
● Tests should be query and assert against
your application’s APIs.
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Testing Solution
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Forge Arquillian Plugin
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First Sample Test
In Container Test
UtilClass
@Before and @After Tests - 1
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@Before and @After Tests - 2
@Before and @After Tests - 3
@Before and @After Tests - 4
End-To-End with No Mocks! - 1
End-To-End with No Mocks! - 2
Conclusion
What we've accomplished:
Created an app on the Facebook Domain
● Hosted for free on OpenShift
● Created a WebService with all our logic
● Implemented Arquillian Tests to ensure
correct behavior
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What's Next?
Next Steps:
●
Continue Arquillian tests for boundary conditions
Set up a MySQL Database using OpenShift with 1
command and changing just 5 lines of code
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Visit OCPsoft.org
Get the entire tutorial of this live demo including
the next steps and more at OCPsoft.org under
Tutorials → Facebook
Follow me on Twitter @CavemanCraig
The Demo Code is available at https://github.com/CavemanCraig/FBTutorialDemo