Reverse Engineering APIs

By @_mikz and Raimon Grau
At APIDays Mediterranea 2014

Transcript

1. Reverse Engineering APIs Raimon Grau & Michal Cichra 3scale
2. Inspecting APIs github.com/kidd & github.com/mikz 3scale
3. Debugging APIs raimon@3scale.net & michal@3scale.net 3scale
4. APIs Everywhere
5. Get in touch! hello@apitools.com Cases of study • ‘Hidden’ API: Sonos • Combining APIs: Bicing on steroids
6. Get in touch! hello@apitools.com Sonos
7. Get in touch! hello@apitools.com Sonos
8. Get in touch! hello@apitools.com Sonos
9. Get in touch! hello@apitools.com Sonos
10. Get in touch! hello@apitools.com Sonos
11. Demotime!
12. Yay! :) or nay :(
13. Get in touch! hello@apitools.com What else you could do? • Transfer song from Spotify to the Sonos • Backup playlists • Stream the music to remote locations • Vote the songs added to the queue
14. Get in touch! hello@apitools.com Case 2: Api aggregation Bicing + Google Maps Source: Carlos Mejía Greene https://www.flickr.com/photos/carlitos/3101121106/ CC BY-NC-SA 2.0
15. Get in touch! hello@apitools.com Improvements • Reduce transfer size • Reduce roundtrips • Improve accuracy by getting info from multiple sources • Improve API interface
16. Get in touch! hello@apitools.com Api Aggregation Mobile app Middleware Web APIs requests responses
17. Get in touch! hello@apitools.com Api Aggregation Mobile app Middleware Web APIs requests responses http://techblog.netflix.com/2013/01/optimizing-netflix-api.html
18. Demotime!
19. Get in touch! hello@apitools.com How we improved? Size Savings Response time Original XML 131k ~0.7s JSON 80k 39% ~0.7s JSON with distances 91k 30% ~0.7s nearest 10 5k 96% ~0.8s
20. Get in touch! hello@apitools.com What APIs to combine? Hue + Google Calendar Google Maps + Foursquare Sonos + Last.fm Dropbox + Github Almost any, actually
21. Get in touch! hello@apitools.com What do we get from it? • As hackers we like to know what’s under the hood • Cross API • We can ‘discover’ hidden APIs. :) • It’s fun! • We can improve performance by aggregating multiple calls.
22. Get in touch! hello@apitools.com Special Treat Primavera Sound Festival 2014 fake apps on Google Play Store real iOS app with a twist
23. Thank You and Happy Hacking! www.apitools.com @apitools - hello@apitools.com raimon@3scale.net / michal@3scale.net