London Oracle Developer Meetup Presented by Luis Weir (@luisw19) and myself The presentation focuses on APIs and microservices (a lot of discussion on the later)

1. Phil Wilkins
Phil.Wilkins@capgemini.com
uk.linkedin.com/in/philWilkins
@PhilAtCapgemini /
@MP3Monster
Oracle-integration.cloud /
APIPlatform.cloud /
Blog.mp3monster.org
{ developer }
Luis Weir
Luis.Weir@capgemini.com
uk.linkedin.com/in/lweir
@luisw19
Soa4u.co.uk /
APIPlatform.cloud
LONDON

2. ‹#›© 2017 Capgemini. All rights reserved.
• Technical Enterprise Architect specializing in
Integration and PaaS.
• Started out as a developer working on UI for Radar
• Moved into integration solutions –using Open Scr
Tech e.g. JBoss App Server & Fuse, Apache Camel etc.
• Worked in end user companies, ISVs & consultancy.
• Worked with Oracle tech for ~9yrs covering on-prem
and cloud.
About :: Phil Wilkins
Supported the
development of a
variety of books
Packt – Erl et al
Articles published
in a range of
Journals
Published 1st Oracle
iPaaS Book
Implementing ICS
PaaS Community
Jan, 2017
TOGAF 9 Certified
2013
• co-authored a book on Oracle Integration Cloud, contributing a new book on API Platform
• contributing to development of more than a dozen other titles ranging from Apache Camel to
Cloud Computing Design
• active blogger have had a number of articles published in various journals.

3. ‹#›© 2017 Capgemini. All rights reserved.
Publications from the Capgemini
PaaS Team
http://APIPlatform.cloud
Goes to Print Q1 2018
… Available as Alpha
(download chapters as we
finish them)
Order from …
• http://bit.ly/APIP-CS
• http://bit.ly/APIP-CS-
Amazon
https://oracle-integration.cloud
Order from …
• http://bit.ly/ImplICSBook
• http://bit.ly/ICS-Amazon
Goes to Print Q1 2018

4. ‹#›© 2017 Capgemini. All rights reserved.
About: Luis weir
Oracle Ace Director & Developer Champion
CTO at Capgemini UK
luis.weir@capgemini.com
uk.linkedin.com/in/lweir
@luisw19
http://www.soa4u.co.uk
apiplatform.cloud/
Goes to Print Q1 2018
tinyurl.com/eapim18
Goes to Print Q2 2018
tinyurl.com/apim15
Released in Set. 2015
tinyurl.com/soagov13
Released in Set. 2013
Latest articles:
• Five Minutes with Luis Weir
• 2nd vs 3rd Generation API Platforms - A Comprehensive Comparison
• Podcast: Are Microservices and APIs Becoming SOA 2.0?
• 3rd-Generation API Management: From Proxies to Micro-Gateways
• Oracle API Platform Cloud Service Overview
API
Contribution Award
PaaS Community
Split, April, 2017
Best New UK Speaker
UKOUG
Birmingham, Dec, 2016
Cloud
Contribution Award
PaaS Community
Valencia, March, 2016
Oracle Excellence
Award
Integration Category
October, 2017, SFO

5. Cloud Premier Partner
Oracle Diamond Partner
Oracle Cloud Managed Service
Provider (*New!) partner – only a
handful of SI’s
Only Global SI to be accredited as
Oracle Authorized Education Center
Part of Beta programmes for:
Cotainer Native & Microservices
Inteligent Chatbot
API platform
Integration cloud
Process cloud
Oracle Self-Service Automation
Oracle IoT Cloud
Oracle Mobile Cloud
 Continuous investments in cloud
accelerators
 5 Oracle Aces: 2 Directors, 3 Aces
 Real experts and thought leaders including
several books:
 2013: Oracle SOA Governance
Implementation
 2015: Oracle API Management
Implementation
 2016: Oracle Case Management
Solutions
 2017: Implementing Cloud service
Soon in 2018:
 Oracle API Platform CS
Implementation
 Enterprise API Management
 Several publications in OTN, Oracle
Magazine, Oracle Scene & Other
 2017 – Gold & Silver UKOUG Partner of the Year Awards
 2017 – Global Excellence Award for Extend and Connect
 2017 – API PaaS Community Award
 2017 – Chatbot PaaS Community Award
 2016 – Oracle Specialized Partner of the Year: Industry
 2016 – Oracle University Partner of the Year
 2016 – BPM and Cloud community awards
 2015 – Oracle Customer Support Services Partner of the Year
 2011 – Global Partner of the Year Award for Oracle
Applications
 2012 – Fusion Middleware partner of the year
 2010 – Partner of the year for Oracle Fusion Middleware
 2010 – 2010 EMEA Industry Partner of the Year
 2010 – Oracle Customer Services Partner of The Year
 2009 – Oracle Customer Services Partner of The Year
 2008 – Oracle Customer Services Partner of The Year
Alliance and Strategic Partnership Awards & Recognitions Thought Leadership
Article – June 17
Article – June 17
Podcast – August 17
Capgemini & Oracle

6. ‹#›© 2017 Capgemini. All rights reserved.
7:00pm
7:30pm
8:15pm
8:45pm
Kickoff by Phil Wilkins & Luis Weir
Set up the API Platform
gateway (live demo)
Strawman – topics for
meetups? What works for you?
This Evening ...
Come fly with Oracle - API
design for flying drones
9:00pm
So Long and thanks for all the
Pizza - End of event
7:05pm 3rd Gen API Platforms

7. 7© 2017 Capgemini. All rights reserved.
What are they?
3rd Generation API
Platforms…

8. Disruptive Innovation?
Netflix did not kill Blockbuster. Ridiculous late fees did.
Uber is not killing the taxi business nor is Airbnb killing the hotel industry. Limited
access and ridiculous fares is.
Spotify did not kill the music industry. Being forced to buy full-length albums did.
AWS/Cloud is not killing the on-premise infrastructure & software business.
Ridiculous provisioning timeframes, inflexibility and high costs is.
APIs and Microservices are not killing traditional SOA. Unnecessary
complexity, inflexibility to scale, complicated services and lengthily (costly)
delivery timeframes are.
(inspired from stuff I found on the web)

9. Disruptive Innovation?
Technology by itself is not the real
disruptor. Lack of customer centricity
and business agility is the biggest threat
to any business.
(inspired from stuff I found on the web)
….However without the right technology to enable the business,
achieving such ambitions won’t be possible.

10. API Evolution
Prior
1980’s
APIs inside
a monolith
1980’s
ONC RPC
Early/mid
1990’s
CORBA
Late 1990’s
XML-RCP & SOAP
Early 2010
REST
2018
REST, GraphQL,
etc.

11. Application Programming Interfaces (APIs) are doors that
connect ecosystems

12. API gateways evolution
https://tinyurl.com/3rdgenapim
Timeline
HTTP
Reverse
Proxy’s
Generation Zero
The ESB
 Data in monoliths
 Cloud??
 All about ESB’s
 SOA governance in its infancy
 Service gateways as thin layer
 Reverse HTTP proxies for external
access
 Very early adoption of cloud (mainly by
SMBs)
ESB
DMZ
SSL
WS-Security
Service Gateways
SSL
2002-2005
XMLXML
XML
DMZ
2014-2017
3rd Generation
APIs everywhere
{API}
{API}
{API}
{API}
{API} {API}
{API}
{API}
Micro Gateway
Micro Gateway
Micro Gateway
API Management
Micro Gateway
SOA
Micro Gateways
Microservices
Micro Gateways
Micro Gateway
 Data fully federated
 Centre of gravity moves to cloud
 Proliferation of {REST} APIs
 REST/JSON taking over SOAP/XML
 Microservices gain momentum
 Docker containers to package & deploy
 API management changes shape
 The API Micro Gateway is born
 Event-loop (non-blocking I/O) based app servers
 API management as an enterprise discipline
 IoT gaining momentum
{JSON}
{JSON}
{JSON}
{JSON}
{JSON}
{JSON}
{JSON}
2nd Generation
REST & API Gateways
SSL SSL
API
Management
2011-2013
WS-Security
SOA
Web Service Management
SCA RulesBPELWS-*
ESB BAM Adapters BPMN
WS-S
 Data becoming federated
 Enterprise embraces cloud applications
 Raise of API management pure-plays
 SaaS adoption starts to gain momentum
 API Management add-ons to 1st Gen
 REST APIs become very popular
 API Gateways for SaaS integration
 SOA governance less popular
 Microservices gaining popularity
 IoT early days
{API} {API}
{API}
XML
XML
DMZ
{JSON}{JSON}
1st Generation
XML Appliances
{API}
2006-2010
XML Appliances
(1st Gen API Gateway)
DMZ
WS-Security
WS-Security
SOA
Service Gateways
SCA RulesBPELWS-*
ESB BAM Adapters BPMN SOA
Governance
 Data in monoliths
 Early days of cloud (mainly SMB)
 All about SOA and SOA Governance
 SCA published (OER, UDDI, etc)
 SOA Governance (Enterprise Repositories,
UDDI’s,
monitoring and management)
 XML appliances gain popularity
 Cloud on the radar for large enterprises
 First web (REST) APIs
XMLXML
XML
{JSON}

13. 3rd gen logic distribution comparison
Middleware
Producer Application
Consumer Application
Layer Logic distribution
Generation zero First generation Second generation Third generation
MicroservicesArchitectures
MonolithicArchitectures

14. 3rd gen logic distribution comparison
API Gateway
ESB
APIManagement
ESB
XML Appliance
Composite
Applications
Backend
Applications
Web Services Security
DMZ
SOAGovernance
API
Gateway
Composite
Applications
Backend
Applications
DMZ
1st Gen 2nd Gen
C
C
C
C C
C
3rd Gen
C
API Micro Gateways
API Micro Gateways
C
C
API Micro Gateways API Micro Gateways
C
API
Management
DMZ
Registry
Registry
Diagram inspired from omesa.io
Web service policy enforcement point
Semi-decoupled service: stateless or statefull. Implements orchestration,
transformation, rules, and other forms of business logic
Fully-decoupled service (microservice): stateless. Implements
choreography, transformation, and other forms of business logic
Managed API: endpoint with policies applied
C
Consumers: any system, application or mobile device that consumes a web
service or REST API
Unmanaged API: endpoint with no policies applied

15. Modern Architectures… what’s different?
Legacy Monolith
Mainframe
(ie IBM System Z, S/360)
Storage
(ie. DB2, IMS/DB)
Hypervisor
(ie. PR/SM –Type 1)
Hardware Resources
(ie. DADB, IDMS,IEDN)
Operating System
(ie. z/OS, z/VSE)
Batch Services
(ie JCL,JES,3rd p.)
Application Services (ie. CICS)
Client:Server
Modern Monolith
Hardware
Host OS
Hypervisor (type 1 or 2)
Guest OS (VMs)
Bin/Libs (MREs, Interpreters, etc)
Application Server
ESB / SOA Stack
Container Engine
Relational Database
Client Browser
Application ServerResponse Request
Model
ControllerView
MVC
API Gateway
Modern Architectures
Client Browser
Model
ViewModel
View
Data updates
BindingEvents
Local Storage
MVVM
Hardware
Host OS
Node PHP PythonJava Ruby
Bin/Libs
Docker Container
Bin/Libs
Oracle
NoSQL
MySQL Etc..
Cassandra
API (Micro) Gateway
Bin/LibsBin/LibsBin/Libs

16. Modern Architectures… what’s different?
Legacy Monolith
Mainframe
(ie IBM System Z, S/360)
Storage
(ie. DB2, IMS/DB)
Hypervisor
(ie. PR/SM –Type 1)
Hardware Resources
(ie. DADB, IDMS,IEDN)
Operating System
(ie. z/OS, z/VSE)
Batch Services
(ie JCL,JES,3rd p.)
Application Services (ie. CICS)
Client:Server
Modern Monolith
Hardware
Host OS
Hypervisor (type 1 or 2)
Guest OS (VMs)
Bin/Libs (MREs, Interpreters, etc)
Application Server
ESB / SOA Stack
Container Engine
Relational Database
Client Browser
Application ServerResponse Request
Model
ControllerView
MVC
API Gateway
Client Browser
MVVM
Oracle Container Native *New* |
Oracle Application Container Cloud |
Oracle Container Cloud Classic |
Baremetal (OCI)
Oracle API P - CS API Gateways
Modern Architectures
Java Node PHP Python Ruby
DBCS
Mongo in
OCI
MySQL CS
Others in
OCI
NoSQL CS

17. Any Compute
API Gateway
Runtime Derby
DB
Bundled Software
API Consumers
API Consumers
API Consumers
OnPrem
Service Endpoint
Service Endpoint
Service Endpoint
API calls Service calls
Compute NodeCompute Node
REST APIs
Management Services
Management
Portal
Developer
Portal
Public Cloud
- API Platform
Cloud Service
Management
Portal
Developer
Portal
Compute Node
Database
Cloud
REST APIs
Management Services
Management
Portal
Developer
Portal
https / phone-home
Load Balancer
OracleIdentity
CloudService
Corporate
Directory
http(s)
http(s)
http(s)
http(s)
http(s)
http(s)
Oracle API Platform Architecture Review

18. What’s Unique in the Oracle API Platform?
API
API-design ready with native
Apiary integration
Built from the ground-up to
satisfy modern API needs
“Native hybrid” API Platform. Manage
APIs anywhere (AWS, Azure, OPC, on-
prem)
Microservice ready. Lightweight,
easy to set-up and scale
Excellent licensing model based
on logical gateways –not CPUs

19. 23© 2017 Capgemini. All rights reserved.
A closer look at the API Gateway
3rd Generation API
Platform…
Cloud
Management
Node
Server 1
Development
Logical Gateway
Node
Server n
Node
Server 1
Test
Logical Gateway
Node
Server n
Node
Server 1
PreProduction
Logical Gateway
Node
Server n
Node
Server 1
Production
Logical Gateway
Node
Server n
Single Cloud
Management
model
- APIs from
development to
production

20. 24© 2017 Capgemini. All rights reserved.
Gateway Pre-requisites
/u01/app/
oracle/gateway/
Installer Run Archive Patch
Before a gateway can be configured
and deployed, a number of pre-
requisites are needed …
• Appropriate Version of the JDK
• Python with OpenSSL
• Sufficient Storage space & suitable
file system permissions
• Downloaded installation bundle from
the management cloud

21. 25© 2017 Capgemini. All rights reserved.
The API Platform has a life cycle.
Once it has been joined to a Management Cloud
– then it becomes operational
Gateway Lifecycle Install
Configure
Start
Create
and/or
Join
Lockdown
Patch
Stop
Destroy
Node
Commands are
provided which can
perform multiple
lifecycle steps in a
single command

22. 26© 2017 Capgemini. All rights reserved.
{
"gatewayInstallDir" : "/u01/app/oracle/gateway/run/",
"installationArchiveLocation" : "/u01/app/oracle/gateway-
installer/archived-install/archive1",
"prevInstallCleanupAction" : "clean",
"gatewayNodeName" : “dev-lx3061",
"managementServerHost" : "https://130.162.65.144",
"managementServerPort" : "443",
"nonProxyHosts" : "localhost",
"listenIpAddress" : "10.230.100.135",
"publishAddress" : "10.230.100.135",
"gatewayExecutionMode“ : "Development",
"gatewayNodeDescription" : “dev-lx3061.somewhere.com",
"gatewayDomainName" : "gateway1",
"logicalGateway" : “dev",
"opatchesFolder" : "/u01/app/oracle/gateway-patches",
"gatewayMServerPort" : "8011",
"gatewayMServerSSLPort" : "443",
"gatewayId" : "100"
}
Example
Configuration
Location for putting
old instance and
current execution
Choice of ways to
install and treat the
old binaries
How to identify this
node
Where to find the
management server
Some networks have a proxy in the DMZ to
pass through to the internet
Declare the gateway location and which IP
to listen on
In the Gateway is a WLS instance. We can
name this, naming needs to be unique if
you’re going to use OEM
Which logical gateway should this node
associate with
The gateway is actually tracked by this Id.

23. 27© 2017 Capgemini. All rights reserved.
The API Platform has a life cycle.
Once it has been joined to a Management Cloud
– then it becomes operational
Gateway Lifecycle Install
Configure
Start
Create
and/or
Join
Lockdown
Patch
Stop
Destroy
Node
Commands are
provided which can
perform multiple
lifecycle steps in a
single command
./APIGateway -f gateway-props.json -a install
./APIGateway -f gateway-props.json -a configure
./APIGateway -f gateway-props.json -a start
./APIGateway -f gateway-props.json -a create-join
OR
./APIGateway -f gateway-props.json -a create
./APIGateway -f gateway-props.json -a join

24. 28© 2017 Capgemini. All rights reserved.
Come Fly with Capgemini
aka
Drones with APIs

25. Recap …
The Idea …
• Make experimenting and talking about Oracle Tech fun by
using to do something
• We came up with Flying Drones
What’s Happened since December …
• We have obtained a Parrot Bebop 2 Drone!!
• We have created a 1st cut of the APIs to command the Drone
{API 1st}
• APIs defined to control flight
• Plenty of opportunity to develop the APIs by defining APIs
to manage things like the camera
• Opportunity to experiment with creating single use APIs on-top
of the general drones
• Looked at the question of Health & Safety
• Worked through some of the technical puzzles to make this
work
• Sharing information on a GitHub wiki

26. The Resources …
Git Hub Repository : https://github.com/oracledeveloperslondon/droneAPI
Apiary Definition (also held in GitHub) : http://dronedevmeetup.docs.apiary.io
SDK between Drone and API App : http://developer.parrot.com/docs/SDK3/

27. Compute Node
Public Cloud
- API Platform
Cloud Service
Compute Node
REST APIs
Management Services
Management
Portal
Developer
Portal
Load Balancer
Any Compute
API Gateway
Runtime Derby
DB
Bundled Software
The drone
broadcasts its
own network -
dynamic
API Platform is
exposed on
stable LAN
Network bridge
setup needs to
be established
Observer
with App to
meet H&S
requirements

28. Compute Node
Public Cloud
- API Platform
Cloud Service
Compute Node
REST APIs
Management Services
Management
Portal
Developer
Portal
Load Balancer
Any Compute
API Gateway
Runtime Derby
DB
Bundled Software
Gateway routes
calls to API
app(s) built using
ARDrone SDK
Run gateway on
local machine to
avoid issues of
LAN to ‘net
firewalling
Simple single
instance operation
Initial development
work has adopted a
Springboot model so
we can deploy into
different tech
Apiary has all the API
documentation &
definitions of the APIs
being offered
API policies defined
in a management
cloud instance.
Gateways
configured to phone
home to get config
API policies defined
in a management
cloud instance.
Gateways
configured to phone
home to get config

29. Compute Node
Public Cloud
- API Platform
Cloud Service
Compute Node
REST APIs
Management Services
Management
Portal
Developer
Portal
Load Balancer
Any Compute
API Gateway
Runtime Derby
DB
Bundled Software
Use any (Oracle)
tech you like to
build apps that
call the APIs
Gateway running
when setup.
Can use Dredd or
Apiary mock to test
your functionality

30. Compute Node
Public Cloud
- API Platform
Cloud Service
Compute Node
REST APIs
Management Services
Management
Portal
Developer
Portal
Load Balancer
Any Compute
API Gateway
Runtime Derby
DB
Bundled Software
The complete picture …

31. ‹#›© 2017 Capgemini. All rights reserved.
Drone Client & API
Lifecycle
Client App
Request Drone Discovery
Get List of found drones
Send Command to selected drone
Enquire on Drone info
Shutdown
API App / Gateway
Discover Drones – record new drones
•Create Drone listener
•Cache Entry
•Command Drone with safety parameters
Receive Client commands
•Send drone command
•Receive any status change info
•Maintain a cache of drone state
Shutdown
•Command drone to emergency state

32. Compute Node
Public Cloud
- API Platform
Cloud Service
Compute Node
REST APIs
Management Services
Management
Portal
Developer
Portal
Load Balancer
Any Compute
API Gateway
Runtime Derby
DB
Bundled Software
Build control apps
using APIs
• Use Dredd to help
test or Apiary
Extend the API
definitions to offer
new features /
expose Drone
capabilities
Get involved …
Contribute to developing
of the back end to realise
required and new
services
Make development and
setup easier e.g.
• Dev VM (prebuild ARDrone)
• Script the bridging
mechanism

33. With more than 190,000 people, Capgemini is present in over 40 countries and
celebrates its 50th Anniversary year in 2017. A global leader in consulting, technology
and outsourcing services, the Group reported 2016 global revenues of EUR 12.5 billion.
Together with its clients, Capgemini creates and delivers business, technology and
digital solutions that fit their needs, enabling them to achieve innovation and
competitiveness. A deeply multicultural organization, Capgemini has developed its own
way of working, the Collaborative Business Experience™, and draws on Rightshore®, its
worldwide delivery model.
About Capgemini
Learn more about us at
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