Proper architecture is needed in building enterprise web applications to ensure that it is easily scalable and developers productivity is high. In this session we are going to be talking about: – What is micro-service Architecture – What problem we are trying to solve – Benefits of working with micro-service architecture – Analysis/Architecting a micro-service application – How to break down a monolith to use the micro-service architecture etc. About The Speaker: George James bio: George James is a Full-stack software developer at RBBI, he has a Bachelors degree in Electrical Engineering from Ahmadu Bello University but works full time as a software developer. He is experienced in PHP, JavaScript (Front), NodeJS, CSS, Kafka, Kubernetes, GRPC etc., and lots of frameworks and Libraries. George James has been writing code for over 5 years and has a strong passion to learn functional programming.

1. MicroService
Architecture
Building
Scalable web
Solutions

2. Title
Full Stack Software Developer.
Company
Red Blue Blur Ideas (RBBI)
Next Life Mission
Colonize Mars
george.okpe.james george-okpe-james
Email
george.james@rbbideas.com
Name
George Okpe James

3. Monolith Application

4. A monolithic application is an application built as a single
entity usually comprising of a database layer, application
layer, and sometimes a view layer or API endpoints.
What is a Monolithic Application

5. Application
Layer
Database
Layer
View and
API Layer
External
Providers
Monolith structure… E Cab hailing App

6. SCALING A MONOLITH
APPLICATION

7. 1 GHz
1 GB
RAM
Scaling a monolith….

8. 5 GHz
1 GB
RAM
Vertical Scale …. Clock Speed

9. 5 GHz
16 GB
RAM
Vertical Scale …. Memory

10. 5 GHz
16 GB
RAM
5 GHz
16 GB
RAM
5 GHz
16 GB
RAM
Horizontal Scale …. Duplicate Instances
Load Balancer
A B

11. So what is wrong with
the Monolith
Architecture?

12. Possibility of growing into a
monstrous application
Problem with monolith….

13. Application startup time can
increase based on the size of the
codebase
Problem with monolith….

14. It becomes a problem to
continuous deployment
Problem with monolith….

15. Reliability is low
Problem with monolith….

16. Almost impossible to adopt new
frameworks
Problem with monolith….

17. Extremely difficult to scale
monolithic applications
Problem with monolith….

18. ENTER
MICROSERVICE

19. MicroService is an architectural style that structures an
application as a collection of loosely coupled services
So what is the MicroService architecture ?

20. STRUCTURE OF A
MICROSERVICE

21. A Microservice - E Cab hailing App

22. Services Via API Gateway...

23. Single Service

24. INTER SERVICE
COMMUNICATION &
SCALING

25. Inter-Service Communication… Read Operations
GRPC
Protobuf data
(HTTP2 Binary data Stream)

26. Inter-Service Communication- Change Operations Insert, Update, Delete
KAFKA
GRPC
Protobuf data
(HTTP2 Binary data Stream)

27. How to break down a service
● By business requirements e.g Email Service, Drivers Service
● By database tables e.g Users Service,

28. Considerations when breaking down services
● Services must be cohesive
● Services should be loosely coupled
● A service should be testable independently
● Each service must be small enough to be developed by a
few developers

29. Scaled Service Via Load Balancer...

30. ● Testing is harder
● Deployment is much harder
Drawbacks of MicroService Architecture

31. THANK YOU