apidays LIVE Australia 2020 - Building Business Ecosystems Move to the next generation API ecosystem by looking beyond REST David Codelli, Senior Product Marketing Manager at Red Hat

1. Move to the next generation API
economy by looking beyond REST
David K. Codelli, Product Marketing Manager, Red Hat September 2020
#KickstartInnovation

2. Ecosystems and
interoperability
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3. F18017-200131
Did someone say “ecosystem”
Why Red Hat?
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4. Innovations that change interoperability
1982
Industry
standardizes
on TCP/IP
1989
First web
servers
1995
Three tier
architecture
1998
XML-RPC, later SOAP,
debuts
2000
Architectural Styles
and the Design of
Network-based
Software
Architectures
published by Roy
Thomas Fielding
2001
Agile Manifesto
published
2014
First release
Kubernetes

5. Modern App Architectures
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Ye Olde Architecture Enlightened postmodernism

6. Microservices Communications
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● Distributed system
● Multiple machines
● Each service is a process
● Lightweight protocols
Need to talk to each other, but how?
Not sharing file system, not sharing database, not sharing business tier
Customers
Billing
Administration
Operations
Customer
Service

7. Software Development with Microservices
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Synchronous Interaction
Classic Microservices Application
Development
Asynchronous Interaction
Inter-
mediate
Store
API
Inter-
mediate
Store
API
Inter-
mediate
Store
API
● Data stores owned and used
exclusively by microservices
● Data only shared by transactional
replication (asynchronous) or APIs
(synchronous)
● No common tier means
microservice development
(mostly) independent of other
microservices
● Data owned by other modules
often replicated in streaming
sources

8. What is Event Driven Architecture?
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Event-Driven Architecture
(EDA) is a way of designing
applications and services to
respond to real-time information
based on the sending and
receiving of information about
individual event notifications

9. 9
Source:
https://en.wikipedia.org/wiki/UNIVAC_1103
Inside Macintosh, Apple Computer Inc. Cupertino, CA, 1985.
https://en.wikipedia.org/wiki/Database_trigger
http://soft.vub.ac.be/Publications/2012/vub-soft-tr-12-13.pdf
https://en.wikipedia.org/wiki/Java_version_history
UNIVAC 1103, first computer with operating system level interrupts
debuts.
1953
Apple Macintosh interface based on main event handling loop.
1984
Database vendors Oracle, Sybase, and others add triggers.
1993
First reactive programming language, Fran (Haskell), released.
1997
Java 1.4 introduces event handlers as first class objects.
2002

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How does cloud
change things?

11. Modern App Architectures
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Interrupts
Event loops
Triggers
Event handlers
Data streams
Replayability
Streaming analytics

12. Making Events Work for
Microservices Developers
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13. EDA with Apache Kafka
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Apache Kafka is a distributed system
designed for streams. It is built to be an
horizontally-scalable, fault-tolerant,
commit log, and allows distributed data
streams and stream processing
applications.
Source
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Event Streaming and Event Stream processing platform

14. EDA with Change Data Capture (CDC)
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Get an event stream with all data and schema changes in your DB
Database
Apache Kafka
?E E E E E E E
Offset 0 Offset 1 Offset 2 Offset 3 Offset 4 Offset 5 Offset 6 Offset 7
Topic
● A system monitors and captures the changes in data so that other
software can respond to those changes
● Applications can read these change event streams and access the
change events in the order in which they occurred
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15. Debezium
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Change Data Capture (CDC) open source platform
● CDC for multiple databases
○ Based on transaction logs
○ Snapshotting, Filtering etc.
● Fully open-source, very active community
● Latest version: 1.0
● Production deployments at multiple companies
(e.g. WePay, JW Player, Convoy, Trivago, OYO,
BlaBlaCar etc.)
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16. Unifying Developer
Experience of EDA
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17. Program level events
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18. Polyglot event driven programming... for Kubernetes
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Event
Serverless
Application/Function
Triggers
KNative Eventing

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What if you could subscribe to an event no matter
how it was published?

20. Connecting streaming traffic in the future: the Event Mesh
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EVENT MESH
KafkaTraffic
JMS
Traffic
AMQP
Traffic
Applications, change data capture
Knative
events
KafkaTraffic
JMS
Traffic
AMQP
Traffic
Knative
events

21. See
skupper.io

22. 22
PHYSICAL VIRTUAL PRIVATE CLOUD PUBLIC CLOUD
Red Hat Cloud-Native Application Platform
APPLICATION SERVICES
Create event-driven apps
Messaging, Caching
Create & Connect
Event-driven apps Decision Services
Event Stream Processing
INTEGRATIONRUNTIMES PROCESS AUTOMATION
Create, run and maintain traditional and
cloud-native apps for on-premise,
cloud or hybrid architecturesPHYSICAL VIRTUAL PRIVATE CLOUD PUBLIC CLOUD
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Power Event Driven solutions with Red Hat
Messaging, Event Streaming,
Event Stream Processing

23. ResourcesEVENT-DRIVEN ARCHITECTURE
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eBook: Event Driven applications with Red Hat
AMQ Streams
WP: EDA Blueprint
Dzone Blog EDA seriesVideo: EDA leverage microservices for
greatest impact
EDA Blog

24. linkedin.com/company/red-hat
youtube.com/user/RedHatVideos
facebook.com/redhatinc
twitter.com/RedHat
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Red Hat is the world’s leading provider of enterprise
open source software solutions. Award-winning support,
training, and consulting services make Red Hat a trusted
adviser to the Fortune 500.
Thank you
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