apidays LIVE LONDON - Evolving API Management for Event-Driven Digital Banking by Dr Aiken Leung

Evolving API
Management for Event-
Driven Digital Banking
Dr Aiken Leung
28th October 2020
aiken.leung@solace.com

Banking and finance have always been
highly centralized in their hierarchy,
their business model and their
information system, but in the digital
age, in order to avoid Bill Gates’ 1994
prophecy that banks would become
obsolete, the industry requires
modification and INNOVATION.
The Problem
Statement
2
© Solace
Proprietary & Confidential
APIDAYS LIVE LONDON, https://www.apidays.co/london/ 27-28
October, 2020

The Innovation
3
© Solace
1. Centralized vs
Distributed
2. Service Mesh vs Event
Mesh
3. API Portal vs Event Portal

VS
Centralized vs Distributed
• Centralized customer accounts
• Distributed PaaS (e.g. DB), Storage
• But is it distributed?
Most banks, digital or not…
• Distributed customer accounts in connected nodes
• Each node is a self-contained, fully functioning bank
• Truly distributed

Distributed is Complicated
6
© Solace
High Cost, High Risk, Poor Performance, Poor Efficiency
How do you scale, govern, make robust & secure, automate and federate across hybrid environments?
PaaSPublic Cloud iPaaS
IoTLegacy Application InfrastructureRuntimes

Introducing Event Mesh
7
© Solace
PaaSPublic Cloud
Legacy Application Infrastructure
iPaaS
Runtimes
• Uniform Connectivity
• Dynamic Routing
• Elastic Capacity
• High Performance
• High Availability
• Security & Governance
IoT

Node
DMZ ECN
Third-party Partners
……
Service and Event Mesh with Solace
Scale Up Scale Up
WEB
Scale Out
Scale Up
Increase computing power along with
increase in business complexity for
existing customers
Internet
Self-contained Nodes
Each node is a fully
functioning bank
Scale Out
Adding nodes along with
growth in customers
Low Cost
• Fine-grained cost control, up to 90% lower cost (e.g.
30p per account)
Scalability
• Horizontal and vertical scaling for capacity planning
• Proven in large scale production: 200M+
accounts and 200M+ transactions/day
Reliability
• Service and Event Mesh connect nodes across
hybrid cloud and enables event driven microservices
• Multi-node redundancy for HA (e.g. 1+2 configurable)
Agility
• Facilitates DevOps and Model Driven Operation and
Development
• Replicate physical nodes in days, deploy in seconds.
Set up banks in weeks.
In-a-Box
Bank
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB
A Truly Distributed, Event-Driven Digital Banking Platform
8
© Solace
Feel free to contact aiken.leung@solace.com for design

Inside a Bank-in-a-Box Node – with Open Banking Capability
9
© Solace
PaaS + BaaS
API Gateway
Containerized Microservice Application Framework
ServiceGovernance
Event Gateway
EventGovernance
PaaS
Data Store
SQL / NON / Big Data
Load Balancer
L4 / L7
Storage
File / Object
Location Service Transaction ServiceBlockchain
Service and Event Mesh
Open API – PSD2 Open Banking Ready
Kernel
UM
Atomic Services
Scheduling
Mission Control
DACM
Configuration
Management
OCP
Automated
Operation
Service-EventPortal
Operations
RAPM
Resource & App
Monitoring
Log Center
Diagnosis
PlatformGateway
Governance
Open API, Open Technologies and Open Standards with Solace
Banking as a Service (BaaS)
Front-End Frameworks
Mobile App
3rd Party Platforms
Mini App HTML5WEB
Feel free to contact aiken.leung@solace.com for design

Bank 4.0: Banking Everywhere – Embedded Finance in Daily Life
Banks
House-Hold
Office Building
Private Transportation
Government
Agencies
Public Services Other FIs
Public
Transportation
Consumer Activities
11© Solace
Proprietary &
Confidential
EVENTS
Customer Financial Profile
Asset
Credit
Transaction

eWallet as a Service – from Customer Viewpoint
House-hold bills
Bill Payment
Shopping lists
Payment/Discount
Service Bills
Appointment/Payment
Authorization
Pass
Tickets
Pass/Payment/Disc.
Invoice / TAX Disc.
Trade & Payment Info
e.g. Drawdown at the payment
Online Current
/Saving Account
Accessible
Fund Account
Credit Card
Payment Asset
from Other Banks
Pre-Authorized
Credit for
Consumer Finance
Payment
Aggregation
3.Bank make lending
contract with customer.
EVENTS

Event Streaming - Cross Border Trade Finance
Port
Authority
Port
Authority
Buyer
Logistic
Company
Logistic
Company
Custom
Service
Shipping
Companies
Regulator
Shipment
Movement
Dock Confirmation
Dock Confirmation
Order Confirmation
Logistic Movement
Custom Confirmation
Custom Confirmation Logistic Movement
Contract Data
OverseasUK
Seller
Custom
Service
EVENTS

Gartner: Top 10 Strategic Technology Trends for 2018: Event-Driven
Model. 8 March 2018
Gartner Says
Shift to Events
is Accelerating
“And 80% of
new business ecosystems
will require support for
event processing.”
“By 2022, 70% of new
digital business solutions
will require event-sourced,
real-time situational awareness.”
14© Solace
Proprietary &
Confidential
Source: Gartner “Stream Processing: The New Data Processing Paradigm” 9 April 2019,
Sumit Pal
The Need for Speed:
Time Value of Event

Event-Driven Architecture Is
the Future of Banking

MS 1
Sidecar
MS 1
Sidecar
UI
MS 1
DB
Event Mesh
API Gateway,
Service Mesh and
Microservices
Event-driven
Microservices
Sidecar
MS 2
Sidecar
MS 2
Sidecar
MS 2
DB
Sidecar
MS n
Sidecar
MS n
Sidecar
MS n
DB
Sidecar
Publish/
Subscribe
MS 1
Sidecar
MS 1
Sidecar
UI
MS 1
DB
Sidecar
MS 2
Sidecar
MS 2
Sidecar
MS 2
DB
Sidecar
MS m
Sidecar
MS m
Sidecar
MS m
DB
Sidecar
MS n
Sidecar
MS n
Sidecar
MS n
DB
Sidecar
Service registry
Service Mesh
UI
Monolith
DB
UI
Enterprise Svc Bus
Service
DB
Service
Monolithic Service Oriented
Request/
Reply
The Evolution towards Service Mesh and Event Mesh
API Gateway

Service Mesh AND Event Mesh
© Solace
Proprietary &
Confidential
Network
PaaS/CaaS/Virtualization
Request/Rep
ly
Microservice
s
Hybrid
Microservice
s
Event-Driven
Microservice
s
Request/Rep
ly
Microservice
s
Hybrid
Microservice
s
Event-Driven
Microservice
s
Request/Rep
ly
Microservice
s
Hybrid
Microservice
s
Event-Driven
Microservice
sRequest/Reply
Microservices
Hybrid
Microservices
Event-Driven
Microservices
Service Mesh Event Mesh
17
Event Mesh
Service Mesh

3. Event Portal
https://solace.com/blog/api-portal-for-

Inspired by API Management Platforms
19
© Solace
Proprietary &
Answers the Who,
What, When,
Where, Why and
How For RESTful
APIs…but what
about Event
Streams?
API
Gateway
Documentation
• Discover
Registration
• Govern
Analysis
• Improve
• Monetize
Community
• Collaborate
Architects and
Developers
(Internal, Partner
and Third-Party)
Productivity
• Generate Code
API
Portal

Sinks
Event
Broker
Security Policy
Enforcement
Persistence
One-to-Many
Distribution
Source
Runtime
Design, Develop and Manage
Event
Portal
Documentation
• Discover
Registration
• Govern
• Create Security Policy
Analysis
• Improve
• Monetize
Community
• Collaborate
Productivity
• Generate Code
(code gen)
(specification)
RabbitMQ
Websphere
MQ
Apache
Kafka
ActiveMQ
Amazon
Kinesis
Azure
Event
Hub
PubSub+
You Need an Event Portal for Asynchronous Interactions
© Solace
20

Platform Universe Nodes with Hybrid-Cloud Deployment
Event Portal – Catalog, Discover, Design Event Streaming
Event Discovery Event Catalog Event Designer
Node
……
Event Mesh
Scale Up Scale Up
WEB
Scale Out
In-a-Box
Bank
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB
Node
……
Event Mesh
Scale Up Scale Up
WEB
Scale Out
In-a-Box
Bank
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB
DB
WEB
APP
WEB

Solace is FREE
for production use!!
http://solace.dev
info@solace.com
Thank You

apidays LIVE LONDON - Evolving API Management for Event-Driven Digital Banking by Dr Aiken Leung

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apidays LIVE LONDON - Evolving API Management for Event-Driven Digital Banking by Dr Aiken Leung