Quick intro to Microservices!

1. What are Microservices?
Ashwin Chandrasekaran
Aug 2017

2. Microservices
Architectural style where
a single application is composed of suite of
small services

3. SOA vs MSA
Controller
Services
Data Access
Database
SOA
Horizontal
layering
Account
Service
MSA
Vertical
layering
Shipping
Service
Cart
Service
Data
Flow

4. Microservices
Key Principles
Services are very small
Independently deployable and upgradable
Communicate with each other via open protocols
Encapsulate business capability

5. Microservices
Benefits
Faster development
cycles
Fault isolation
Multiple technology
stacks possible
Easier to scale

6. Microservices
Challenges
Complexity of
distributed system
Inter-service
communication
may be complex
End-to-end testing
is complex
Transactions are
complex
(ACID vs Eventual
Consistency)

7. Are microservices right for
you?
May be!
● Need to develop and
scale faster
● Teams are used to
distributed
development
● Infrastructure is
modern and robust
May be not!
● Teams are not agile
● Less frequent and fixed
product releases
● Traditional
infrastructure

8. Useful resources
● http://microservices.io/patterns/microservices.html
● https://martinfowler.com/microservices/

9. Thank you!
Ashwin Chandrasekaran
http://meetashwin.net