Open APIs Design
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Presentation from OpenSource Expo - Why APIs ? - Impl recommendations - Analytics
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Open APIs Design
- 1. Sub$tle text Last Updated: June 2014 VP, Product Management Isabelle Mauny APIs Design and Development Thursday, June 26, 14
- 2. 2 About the speaker... ๏ French na)ve ๏ Living in Spain ๏ Works mostly with Sri Lanka ๏ 18 years of IBM, 4 years in startups ๏ Managing the overall WSO2 porDolio ๏ Linux command line user Thursday, June 26, 14
- 3. Many APIs ! 3 Thursday, June 26, 14
- 4. 4 Thursday, June 26, 14
- 5. Why APIs ? 5 Mobile Apps Development Marke)ng channel Find new customers Drive Innova)on Drive Internal Projects Integra)on with Partners Sales Channel New Product Thursday, June 26, 14
- 6. Ok, I am convinced... Now what ? 6 Thursday, June 26, 14
- 7. 7 ๏ Service deals with implementa)on ๏ API deals with subscrip)on (consumer) ๏ Two very dis)nct life cycles ! ๏ You don’t need the service to create the API... Services and APIs Thursday, June 26, 14
- 8. 8 Building a Managed API ๏ Crea)ng APIs (interface, docs, samples,etc.) ๏ Adver)sing APIs ๏ Making APIs subscribe-‐able by consumers ๏ Associa)ng SLAs ๏ Securing APIs ๏ Mone)za)on and Analy)cs Thursday, June 26, 14
- 9. Magic API triangle 9 RESTful JSON OAuth Thursday, June 26, 14
- 10. SOAP vs. REST 10 Thursday, June 26, 14
- 11. 11 Thursday, June 26, 14
- 12. 12 Thursday, June 26, 14
- 13. JSON vs. XML 13 Thursday, June 26, 14
- 14. OAuth2 ๏ Standard used by most API billionaires ( TwiWer, Facebook, Google for example) ๏ Covers authoriza)on to access selected informa)on/data (scopes) ๏ Authen)ca)on is covered using OpenID Connect protocol ๏ Mul)ple grant types: Authoriza)on code (below), client_creden)als, password, SAML , Kerberos) 14 Thursday, June 26, 14
- 15. 15 Need for API Versioning ๏ Need to support API evolu)on ๏ While Maintaining ๏ Backward compa)bility -‐> Func)onality ๏ Rates/ThroWling agreements ๏ Different versioning mechanisms Thursday, June 26, 14
- 16. 16 API Versioning Strategies ๏ Version as a query parameter ๏ NeUlix -‐ hWp://api.neDlix.com/catalog/)tles/series/70023522?v=1.5 ๏ Google Data API -‐ “GData-‐Version: X.0″₺ or “v=X.0″₺ ๏ Version as part of URI ๏ Salesforce -‐ hWps://na1.salesforce.com/services/data/v20.0/sobjects/Account/ ๏ TwiYer -‐ hWps://api.twiWer.com/1.1/statuses/men)ons_)meline.json ๏ Version as a date in URI ๏ Twilio -‐ /2010-‐04-‐01/Accounts/{AccountSid}/Calls ๏ hWp://www.twilio.com/docs/api/rest/making-‐calls ๏ Version as a ๏ Custom HTTP Header ๏ Accept Header Thursday, June 26, 14
- 17. 17 You can’t manage what you can’t measure. Thursday, June 26, 14
- 18. 18 Why AnalyZcs and API Management are important together? ๏ Build confidence in the API model ๏ Understand your customer ๏ Help manage services and versions ๏ e.g. understand when deprecated services can be re)red ๏ Plan beWer ๏ Monitor the growth of aggregated API traffic ๏ Monitor the growth of specific apps ๏ Make sure you capture all events right from beginning of project. Thursday, June 26, 14
- 20. Deployment 20 API Management Layer Services Layer Applications Cloud Services Mediation Layer Services Composition Services Orchestration Thursday, June 26, 14
- 21. Who is WSO2 ? ๏ Open Source Middleware PlaDorm Provider ๏ All products are released under Apache 2.0 License ๏ No community vs. Enterprise edi)ons ๏ Provides Integra)on, API Management and Mobile management products ๏ 350+ people in Sri Lanka, USA and Europe 21 Thursday, June 26, 14
- 22. References ๏ OAuth ๏ hWp://blog.facilelogin.com/ 2013/02/why-‐oauth-‐it-‐self-‐is-‐not-‐ authen)ca)on.html ๏ hWp://openid.net/specs/openid-‐ connect-‐basic-‐1_0.html ๏ WSO2 API Manager ๏ wso2.com/products/api-‐manager/ 22 Thursday, June 26, 14
- 23. Contact us ! Thursday, June 26, 14