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Cloud sync APIs for mobile developers
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Leah Culver
May 06, 2014
Programming
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Cloud sync APIs for mobile developers
APIDays Berlin, May 6, 2014
http://berlin.apidays.io/
Leah Culver
May 06, 2014
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Transcript
Cloud sync APIs for mobile developers Leah Culver, Dropbox APIDays
Berlin 2014
Dropbox “Your [digital] stuff everywhere”
Wherever you are
Safe and secure
Share with friends
• Filesystem that just works • “The magic folder” Then
• Multi-device world • Mobile filesystem? Now
Dropbox APIs for mobile apps
Core API • REST-ish, OAuth 2.0, JSON • SDKs for
Android, iOS, OS X, Python, Ruby, Java, PHP • Community-supported libraries for C#, JavaScript, Perl, etc. HTTP API for files
• List files /metadata/<root>/<path> • Upload file /files_put/<root>/<path> • Get
a thumbnail /thumbnails/<root>/<path> • Share via a link /shares/<root>/<path> Core API
Core API is great. So what now?
• Cross-platform support • Sync across devices • Offline access
(bonus!) Mobile API challenges
Sync API
Sync API • Just like Core API • Filesystem for
mobile apps • Store and sync photos, videos, etc.
• iOS, Android, OSX • Handle offline caching and syncing
• Notifications of changes • Updates in real time Sync SDKs
Image Grid Sample
None
Image Grid Sample code iOS
Initialize the filesystem
Listen for changes
Display thumbnail
Great for files… but what about data?
Sync API file system-like interface Datastore API structured data Mobile
APIs
Datastore API • Storage for structured data • Like a
NoSQL database • Stored in the user’s Dropbox • Not files!
Store data in user’s own Dropbox ! • User owns
their data • Access to files/data outside your app • Free for developers
account→datastore→table→record→field→value Datastore API
Why not files? Monolithic → inefficient syncing Opaque → conflicts
Why not files? • Clearly defined structure • More efficient
syncing • Advanced conflict resolution
Similar to Sync SDKs … • iOS, Android, OSX, JavaScript,
Python • Handles offline caching and syncing • Notifications of changes • Updates in real time
Click the Box
None
Click the Box code JavaScript
level current_level 3 state table single record field value
Initialize datastore
Click listener
Listen for changes
Display level
Offline
None
• Local changes cached when offline • Syncs changes with
server when online • Automatically merge changes Offline / online syncing
• Conflicts resolved by the client • Handled by Dropbox
SDKs Conflict resolution
More… dropbox.com/developers/blog
github.com/dropbox opensource.dropbox.com
• Cross-platform SDKs • Both files and data • Users’
own Dropbox • Handles offline access, sync, and conflict resolution TL;DL
Questions? dropbox.com/developers
[email protected]
We’re hiring!
Photos http://www.flickr.com/photos/kky/704056791/ http://www.flickr.com/photos/eulothg/5906431611/ http://www.flickr.com/photos/tambako/2844515466/ http://www.flickr.com/photos/yourdon/10018150113/ http://www.flickr.com/photos/mager/2659619029/ http://www.flickr.com/photos/ben_grey/4582294721/ http://www.flickr.com/photos/adactio/12674602864/ http://www.flickr.com/photos/coofdy/11492948263/ http://www.flickr.com/photos/arts/42217172/
http://www.flickr.com/photos/drachmann/327122302/ http://www.flickr.com/photos/evergreenkamal/395448039/ http://www.flickr.com/photos/aliaholle/5888906660/ http://www.flickr.com/photos/vinothchandar/5148046888/ http://www.flickr.com/photos/shandilee/5062466679/ http://www.flickr.com/photos/swisscan/2514879116/ http://www.flickr.com/photos/yourdon/10018150113/