Use hypermedia to move your business logic out of your native mobile apps and reduce the time spent in the app stores.

1. HATEOAS
Hypermedia As The Evader Of App Stores

2. Who am I?
Twitter: @darrel_miller
Email: darrel@runscope.com

3. What do I know?
• Deploying native applications is a
pain
• Hypermedia can reduce deployment
frequency

4. Where does the business logic go?

5. Hypermedia ?

6. More code less theory

7. Hypermedia API – Example 1
Switch
On
Off
GET /switch
POST /switch/on
POST /switch/off

8. Demo

9. So what?
• Links convey options to the client
• Following Links captures the user’s intent
• Client is limited to dealing with the what, not the how

10. Hypermedia API – Example 2
Expense App
Home
Expenses
Approve
Unapprove
Receipt
{ExpenseId}

11. Demo

12. Conclusions
• Client state as an implementation artifact can be valuable
• Using Link types to encapsulate behavior isolates coupling and
enables re-use
• Allowing the server to take responsibility of application
workflow reduces dependencies on client UI frameworks
• Putting your business logic on the server can save you trips to
the app store

13. http://www.bizcoder.com/ https://github.com/tavis-software
https://github.com/darrel.miller/hypermediaclients

14. Image Credits
• Child https://www.flickr.com/photos/piulet/
• Tug of War https://flic.kr/p/nD2nj
• Web https://flic.kr/p/5RgD34