The document discusses APIs and how they can be used by businesses. It notes that APIs allow businesses to make resources available to internal and external partners through standard web protocols. The document then discusses how APIs can be managed through an API management platform, which allows businesses to create, publish, protect, monitor, and monetize their APIs. It provides examples of large companies that make heavy use of APIs, such as Twitter, Netflix, Facebook, and Amazon.

1. lean . enterprise . middleware
APIs and Beyond
Chris Haddad
VP, Technology Evangelism
Paul Fremantle,
CTO and Co-Founder
© WSO2 2011. Not for redistribution. Commercial in Confidence.

2. Business APIs
“APIs provide a way to make resources
available for internal and external
partners to access information and
services.”

3. API Architecture
An API is a business capability delivered over the Internet
to internal or external consumers
• Network accessible function
• Available using standard web protocols
• With well-defined interfaces
• Designed for access by third-parties
A Managed API is:
• Actively advertised and subscribe-able
• Exhibits high Quality of Service (QoS)
• Available with Service Level Agreements (SLAs)
• Secured, authenticated, authorized and protected
• Monitored and monetized with analytics

4. APIs All the Way…

5. APIs and Business Consumers
Mobile Apps
Legal or
government Employees
authorities
Core
Business
Corporate Services
Suppliers
Websites
External
Distributors
Partners

6. Don’t ignore API Proliferation
Source: http://blog.programmableweb.com/2011/10/03/4000-web-apis-whats-hot-and-whats-next/

7. Some Statistics
• Twitter : More than 15 billion calls per day 75% through APIs
• Netflix : More than 1 billion calls per day
• Facebook : More than 5 billion calls per day
• Amazon : More than 260 billion objects store in S3
• eBay : More than 2 billion transactions per day (using the WSO2 ESB)

8. The New Web
Create an Architecture of Participation
Source: http://blog.programmableweb.com/2011/01/03/api-growth-doubles-in-2010-social-and-mobile-are-trends/

9. API Opportunities
“APIs create a new relationship opportunity –
B2D; Business to Developer, that creates
direct B2C, B2B
and indirect B2C relations”
Source: http://asanka.abeysinghe.org/2012/02/apis-create-new-relationship-b2d.html

10. API Opportunity

11. WSO2’s API Management Vision
• Create APIs
• WSO2 Application Server, Data Services Server and ESB
• Find and subscribe/buy APIs
• API Store and Governance WSO2 API
• Manage, secure and protect APIs Management
Platform
• API Management and Gateway
• Monitor and Monetize APIs
• API Monitoring and Analytics
• Develop, host and run API-based applications in a
Platform-as-a-Service
• WSO2 Stratos and Cloud Development Platform
• API Cloud

12. The API Platform Architecture
Self-service Access
API Store Front API Explorer API Back Office Key Management Monetization Engine API Governance
API Gateway
Load Balancer Mediation Broker
Authorization and
Authentication API Cloud
Mobile and Web
Applications API Analytics Data Store
Consumer Identity Traffic Control
Provider Policies Monetization Repository
API Repository

13. Business Design of the APIs
• Know the consumer
• Who will use the APIs (both developers and final end-user)?
• What type of applications will use the APIs?
• What business assets will be delivered?
• Maintain Operational Control
• What Quality of Service is expected?
• Who can access the assets?
• Remember Usability and Monetization
• How will the API expose business assets?
• How will you demonstrate business value via direct revenue, chargeback, or
showback?

14. API Ecosystem Model
•From SOA lessons learned, best practices roles
•API Publisher
• Builds, publishes, manages, and versions API
• Understand business and technical requirements
• Cares about usage and scaling
• Seeks feedback, ratings, usage
•API Manager
•Promotes and encourages consumers to adopt API
•Determines usage patterns and how to best monetize asset
•Monitors and secures
•API Consumer
•Understands the interface definition
•Subscribes and connects application to API
•Monitors own usage and cost basis
•Provides feedback and ratings

15. Architect’s View of API Objectives
API Publisher
•Publish easily consumable APIs
•Increase API accessibility, availability, reliability, and security
•Drive API adoption by building communities and promoting APIs
API Consumer
•Identify API matching project requirements
•Evaluate API and rapidly compose solution
•Assess service level agreement and cost
•Socialize project requirements with API Publisher
API Manager
•Meter, rate limit, and monetize investment
•Promote and enforce API lifecycle best practices
•Optimize API portfolio and reduce custom development
•Identify usage patterns, successful providers, and business opportunity

16. Developer’s View of API Objectives
API Publisher
•Quickly develop and publish secure RESTful APIs
•Associate service level policies and monetization rates
•Promote samples, how-to-guides, and roadmaps
•Evolve and version service
API Consumer
•Register as an API consumer
•Review API documentation and match project requirements
•Obtain API key, integrate with API, test API
•Subscribe to API at a specific service level and pricing rate
API Manager
•Follow best practice API lifecycle workflow
•Version API
•Request API features and file issue
•Automated migration across lifecycle environments (e.g. Dev/QA/Prod)

17. Built on Proven Components
• API
Management Platform leverages WSO2 proven
components:
o WSO2 ESB
 used as API Gateway by eBay, AAA, and others. eBay
handles > 1 billion API calls/day
o WSO2 Governance Registry
 used by British Airways, Intermountain Healthcare, and
many others
o WSO2 Identity Server
 used by Citigroup, Federal Home Loan Bank of SF, US
Navy and others

18. Scalable Deployment Architecture

19. API Store Features

20. API Publisher Features

21. Adding an API
See more

22. Listing APIs

23. API Store

24. Scalable Analytics Deployment

25. Questions?
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25

26. Resources

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