Hello functional REACTIVE programming with Reactive extensions

Hello FRP

With Rx

Hello RP

Outline

  • About Me
  • What is RP
  • Influences & Inspirations
    • Design Patterns
    • Functional Programming
  • Core Concepts
  • QA
  • Refs

Terrance Smith

 

 
  • Dad of a 8 year old
     
  • Senior Software Developer @Stratus Ops Team
     
  • 9 years exp as a Software Developer
     
  • 4 year exp System\Network Admin in US Army

 

2

What is Reactive Programming?

Reactive Programming

 

Representing and responding to Changes in Data Over Time

 

 

Observables

AKA

Streams

When you typically think of data...

you may think of one of these

when you think of data "in RP"

it's more like this

TIME X Data

 

=

Observable

key to streams is ...

Some Examples of Observables\ Streams

Subscribers

How we Listen to observables

Push vs Pull

Iteration vs Subscription

Functional Reactive Programming

  • RFP is a MODEL of implementing RP
     
  • The "HOW" of Reactive Programming
     
  • Leverages FP to compose responses to change in streams

Event subscription example

Benefits of Rp

 

  • Unified Concurrency\Threading\Asynchronicity Model
  • Abstracting Event\Database\HTTP\MSG\ETC Handling 
  • Baked in Error Handing
  • (Arguably) Simpler code

Benefits of Functional Rp

 

  • Uses existing functional programming concepts to compose responses to change in streams 
  • (Arguably) Even simpler code

imho 

my personal anecdotal accounts and ​opinions
 

to be taken with a grain of salt

Q&A

Refs

More Refs

Hello Reactive Programming

By Terrance Smith

Hello Reactive Programming

High-level introduction to Reactive Programming

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