Slide 1
Slide 1 text
Railway Flow Based Programming
@matyo91
25-03-2021
In PHP
Slide 2
Slide 2 text
25-03-2021 @matyo91
Why ?
Slide 3
Slide 3 text
Flow Based Programming
@matyo91
Basic concepts
25-03-2021
Slide 4
Slide 4 text
@matyo91
25-03-2021
Programming
Paradigm
Slide 5
Slide 5 text
@matyo91
25-03-2021
Express a
problem in terms
of transforms on
streams of data
Slide 6
Slide 6 text
Two layers in FBP application
@matyo91
@matyo91
25-03-2021
Botton layer : « business logic »
Top Layer : « communication logic »
Slide 7
Slide 7 text
Advantages
@matyo91
@matyo91
25-03-2021
Slide 8
Slide 8 text
Railway Oriented Programming
@matyo91
Design pattern
25-03-2021
Slide 9
Slide 9 text
Request : (userId, name, email)
Name is blank, email is not valid
User DB not found
Authorization error Timeout
Exemple
@matyo91
Receive request
Validate and canonicalize request
Update existing user record
Send verification email
Return result to user
25-03-2021
Slide 10
Slide 10 text
@matyo91
25-03-2021
Slide 11
Slide 11 text
@matyo91
25-03-2021
Slide 12
Slide 12 text
Functional
approach for
managing errors
@matyo91
25-03-2021
Slide 13
Slide 13 text
Railway Flow Based Programming
@matyo91
Introduction
25-03-2021
Slide 14
Slide 14 text
@matyo91
AddOne MulByTwo MinusThree
25-03-2021
Slide 15
Slide 15 text
@matyo91
addOne MulByTwo MinusThree
Supervisor
Producer Consumer
Error
25-03-2021
Slide 16
Slide 16 text
@matyo91
AddOne
MulByTwo
MinusThree
Producer
Consumer
Client
25-03-2021
Supervisor
IP {number:3}
IP {number:3}
IP {number:4}
IP {number:5}
IP {number:5}
IP {number:8}
Slide 17
Slide 17 text
@matyo91
Producer
Consumer
Client
Client
Client Rails
25-03-2021
Supervisor
IP
IP
IP
IP
IP
IP
IP
IP
Slide 18
Slide 18 text
@matyo91
AddOne MulByTwo
MinusThree
Producer Consumer
Error
MulByTwo
MulByTwo
MinusThree Error
25-03-2021
Slide 19
Slide 19 text
Implementation
@matyo91
PHP
25-03-2021
Slide 20
Slide 20 text
Symfony Messenger
@matyo91
@matyo91
25-03-2021
Slide 21
Slide 21 text
Supervisor
Symfony Messenger
@matyo91
@matyo91
25-03-2021
Client
IP IP
IP
IP
Rails & Error
Consumer
Producer
Slide 22
Slide 22 text
Asynchron
@matyo91
@matyo91
25-03-2021
Slide 23
Slide 23 text
Demo
@matyo91
25-03-2021
PHP
https://github.com/darkwood-fr/railway-fbp
Elixir
https://github.com/antonmi/flowex
Slide 24
Slide 24 text
Hello!
I Am Mathieu Ledru
You can contact me at @matyo91
@matyo91
Thanks!
Any questions?
25-03-2021