This document discusses moving towards an API-centric architecture. It defines APIs as interfaces that allow apps to access backend services and resources. It outlines how apps have evolved from thick clients to thin clients that use APIs to access resources in the cloud. It also discusses how internal and external resources are increasingly being exposed via APIs. Finally, it discusses benefits of a microservices architecture and how organizations can evolve their architectures to be API-first by exposing all services and resources via APIs.

1. 1
Towards the API-Centric Architecture!
Ed Anuff
SVP Product Strategy

2. 2
Ed Anuff
@edanuff

3. What do we mean by APIs?
3
©2015 Apigee. All Rights Reserved.

4. 4
©2015 Apigee. All Rights Reserved.
API
is for apps

5. The A in API is for apps
5
©2015 Apigee. All Rights Reserved.
Rich Clients"
(Visual Basic, Delphi, etc.)
Thin Clients
(Web Applications)
Rich Clients
(Mobile Apps)

6. 6
©2015 Apigee. All Rights Reserved.
Browser
HTTP
App
Internal
External

7. Increasingly
lightweight
Hosted in an
environment"
(often virtualized, increasingly a
container)
Monolithic presentation
and business logic
Modern server-side app
7
©2015 Apigee. All Rights Reserved.
Often runs in
an App Server

8. 8
©2015 Apigee. All Rights Reserved.
App
Back-end
API

9. Sometimes integration-based,
but increasingly API-based
Apps need resources
Email
services
9
©2015 Apigee. All Rights Reserved.
Databases
and storage

10. 12-factor apps
10
©2015 Apigee. All Rights Reserved.
Adam Wiggins http://12factor.net/ MIT License
My SQL
Outbound
Email Service
Amazon S3
Twitter
Attached "
Resources
Production "
Deploy
IV. Backing Services. Treat backing services as attached resources
mysql://auth@host/db
http://auth@api.twitter.com/

11. Cloud business services
11
©2015 Apigee. All Rights Reserved.
Database-as-a-Service
Email-as-a-Service
Storage-as-a-Service
MQ-as-a-Service
All are already in widespread use…

12. Internal resources
12
©2015 Apigee. All Rights Reserved.
Many new resource
services already
are API-based
Developers prefer to use "
APIs even with the added "
work of learning APIs
versus ESB approaches

13. Delivering efficiencies for internal developers
[24]7 delivers innovative self-service and assisted service solutions, and digital chat agents
• Apigee Edge provides IT layer that delivers authentication, API transformation, and a
consistent façade to enable [24]7’s technical team to save development hours
• Enforcing standards on APIs, applications, and data exposure and consumption
• Shortening and optimizing customization required by [24]7customers
13
©2015 Apigee. All Rights Reserved.
“It was critical for [24]7 to find a technology solution that would help"
us reduce the time and resources spent creating custom services
for our leading enterprise customers.” "
~ Edgar Kalns, head of products and engineering

14. Internal
External
14
©2015 Apigee. All Rights Reserved.
App
Front-end
Back-end

15. Mobile API architecture
15
©2015 Apigee. All Rights Reserved.
Server-Side
Application Logic
& Infrastructure
API
Device-Side
App Logic
SDK

16. Clients talk to “Experience APIs”
16
©2015 Apigee. All Rights Reserved.
Mobile clients talking"
to server-side apps"
via an API
"
"
App-specific, often not reusable
Not integration, not SOA
HTML5/JS
and single page apps

17. 17
Burberry
Markets luxury apparel and accessories in
the fast moving fashion market!
• Clienteling app for sales associates
• Personalized customer service
• ArtOfTheTrench – a new breed of app, built with
Apigee API BaaS
Goals!
• Improve customer interaction and experience!
• Better understand customer journey !
• Increase loyalty!

18. 18
©2015 Apigee. All Rights Reserved.
Internal
External
App
Front-end
App
App
Back-end

19. App-to-App
19
©2015 Apigee. All Rights Reserved.
API-centric
App developers expose their own
APIs and learns others’ APIs
Agility trade-off
Integration
Normalized data
interchange

20. 20
©2015 Apigee. All Rights Reserved.
Internal
External
Front-end
App
App
App
Back-end

21. 21
©2015 Apigee. All Rights Reserved.
Internal
External
App
Partner App
3rd Party App
Back-end
Front-end
App

22. Powering global cloud interconnectivity
22
“People want simplicity, automation, orchestrators to
work seamlessly in our data centers. No longer do
people have to worry about integration.”"
~ Ihab Tarazi, Chief Technology Officer
• Gives app developers seamless, on-demand access
to multiple clouds from multiple networks in more than
a dozen locations around the world.
• Simplifies the complex process of provisioning and
managing connections to multiple cloud services and
networks.
• Mobilizes its digital workforce, exposing its IT services
through mobile apps as required.
• Provides developers a strong foundation to accelerate
innovation in the cloud.
Via APIs, Equinix Cloud Exchange

23. App-to-External-App (API Ecosystems)
23
©2015 Apigee. All Rights Reserved.
New security
concerns
Different
metrics
API design"
matters

24. Innovate and Incubate
170+ integrations in three years
Embedded across all platforms
© 2015 Walgreen Co. All rights reserved. developer.walgreens.com apibizdev@walgreens.com @WalgreensAPI
Powering partner and developer ecosystems

25. 25
©2015 Apigee. All Rights Reserved.
Internal
External
App
App
Back-end
Front-end
service
service
service
service
service
service
service
service
service
Micro services
architecture

26. Micro-Services
26
©2015 Apigee. All Rights Reserved.
Easier to"
scale component
services individually
Allows"
polyglot"
programming
Components are
services, not "
in-process objects

27. Evolving towards API First
27
©2015 Apigee. All Rights Reserved.

28. "
Back-end
Services
App Server
Monolithic Web App
28
©2015 Apigee. All Rights Reserved.
Web Apps

29. "
Back-end
Services
App Server
API-adapted Web Apps
29
©2015 Apigee. All Rights Reserved.
Web Apps
Consumption focused
API
Other Apps

30. API-adapted SOA
30
©2015 Apigee. All Rights Reserved.
Exposure focused
ESB
Internal"
Services
App Server
Web Apps
API
Other Apps

31. API-First Enterprise
31
©2015 Apigee. All Rights Reserved.
API Tier
Security
Analytics
Persistence
Orchestration
All Apps
Mobile Apps
Other Apps
Web Apps
ESB
App Servers
Backend
Services

32. Delivering BBC Store quickly, securely, at scale
CommonSecurityModel-OAuth
ThreatProtection
Caching
External API
Façade & Proxy
Internal API
Façade & Proxy
Mediation/Aggregation
BBC ID "
Identity Management System
Seachange Videoservers
Subscription Billing
Payment APIs
Seachange PosterServer
Account APIs
Content APIs
Catalog APIs

33. API Tier with Analytics
33
©2015 Apigee. All Rights Reserved.
Analytics
Apps
App Server
APIs
APIs
Services
App Consumption
• API adaptations needed for apps
• Enable developers for business
• Security for app-to-API
• App and behavior analytics
API Exposure
• APIs architected for abstraction
• Enable developers for API use
• Security for API-to-backend
• API Analytics

34. Visibility into business and operations
Using APIs and data analytics to provide new visibility and insight into their digital ecosystems,
customers, and business.
As business moves from large batch feeds to transactional consumption model
• APIs deliver high volume information; Apigee provides operational stability for large scale
• Analytics for operations: capacity management, predicting load …
• Analytics for business: predicting what people will want to do with information and data
34
©2015 Apigee. All Rights Reserved.
“If I deliver somebody a data feed it’s gone, I don’t know what they
are doing with that data. I don’t know how they are consuming it.
When they come to us directly and consume it through APIs
we get visibility – what data are they pulling, how freqently,
and what are they doing with it.” "
~ Greg Goff, CTO Morningstar

35. What to ask"
when people say"
“We need APIs”
Where to go once "
you’ve become "
API-centric
How to get to
an API-centric"
Architecture
Summary
©2015 Apigee. All Rights Reserved.
?
?
?

36. Thank you
©2015 Apigee. All Rights Reserved.
Ed Anuff
@edanuff