Are you familiar with the concept of functional programming? A process of building software avoiding everything that could be a problem in the future, such as shared state, mutable data and side effects, only by composing pure math functions. Heloisa Carbone shares the enlightening and overwhelming way of programming in Clojure.

1. The advantages of
Functional
Programming with
Clojure
By Heloisa Carbone

2. Functional Programming
Guidelines and concepts of implementation

3. What we seek?
Immutability Functions First
Pure Functions
Function
Composition
Recursion Expressions

4. What we avoid?
Shared States Side Effects
Source: https://www.lambdatest.com/blog/wp-content/uploads/2018/04/Dino.gif
https://ucarecdn.com/e0a5b7b8-33ad-4304-9c1c-0253f97bf48c/

6. History ...
Rich Hickey
Released in 2007
Open Source
LISP dialect
Built in top of JVM
Source: LinkedIn Profile Picture

7. Use Case

8. Why we use Clojure?

9. Advantages
Objective
Language
Outstanding
Test
Coverage
Interoperability
with Java
Strong
community

10. How we use Clojure?

11. How we use it?
+-90%
Microservices
using Clojure
Diplomat
Architecture
Continuous
Delivery

12. Diplomat
Architecture
= Hexagonal Architecture + 2 levels of business
(Ports and Adapters) logic
External Schemas
Internal Schemas
Adapters
Controllers
Logic + side effects
Pure Logic
In
Out

13. Continuous
Delivery
Review
&
Approve
Code Test Deploy
Available
to
everyone
Build

14. How do we onboard engineers so fast?
Self served
Mob Programming
Buddy
Integrated to your team

15. Accelerated learning curve
Simple grammar
Clojure Community
and Documentation

16. May Clojure be ever in your favor...
Heloisa Carbone
... and Functional Programming in your life!
?