How to use Flux (pattern) in React?

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Oursky

What is React? A guide to improving data flow in React using Flux.

Software

Flux + React
Rick Mak
May 2015
Provided to you by Skygear.io
Open source development kit
for mobile, web & IoT apps

Model
Virtual
DOM
DOM
Interact with VirtualDOM
Data Data
Event Event
Skygear.io

setState will trigger
render
Deﬁne your view
Skygear.io

React calculate the diff
• Set state will mark the red dot
• React will ﬁnd out the blue
dots
• Re-render with only the
modiﬁed dom
Source: https://facebook.github.io/react/img/blog/react-diff-tree.png
Skygear.io

State inconsistency
Very common in single page webapp
Skygear.io

State inconsistency
• Server sync not sync with client state
• item missing
• duplicate item
• State between client not sync
• State panic with poor internet
Skygear.io

It is a pattern
A pattern enforcing
unidirectional data ﬂow
Flux is not framework
Skygear.io

View
Action
Store
Dispatcher
Server
Skygear.io

Unidirectional data ﬂow
• Faster debug
• Faster on boarding
• Faster iteration
• Less cascading effect
Skygear.io

Brought to you by Oursky
Build your mobile app fast
skygear.io (open source)

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How to use Flux (pattern) in React?

1. Flux + React Rick Mak May 2015 Provided to you by Skygear.io Open source development kit for mobile, web & IoT apps

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3. Direct DOM = painful = BUG Skygear.io

4. Age of Backbone Model View Skygear.io

5. Works Great in small scale Skygear.io

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9. Skygear.io

10. Say Hello to VirtualDOM Skygear.io

11. Model Virtual DOM DOM Interact with VirtualDOM Data Data Event Event Skygear.io

12. setState will trigger render Deﬁne your view Skygear.io

13. React calculate the diff • Set state will mark the red dot • React will ﬁnd out the blue dots • Re-render with only the modiﬁed dom Source: https://facebook.github.io/react/img/blog/react-diff-tree.png Skygear.io

14. Fast without spaghetti Skygear.io

15. Let focus on Logic Skygear.io

16. State inconsistency Very common in single page webapp Skygear.io

17. State inconsistency • Server sync not sync with client state • item missing • duplicate item • State between client not sync • State panic with poor internet Skygear.io

18. Flux ﬁx that Skygear.io

19. It is a pattern A pattern enforcing unidirectional data ﬂow Flux is not framework Skygear.io

20. View Action Store Dispatcher Server Skygear.io

21. Unidirectional data ﬂow • Faster debug • Faster on boarding • Faster iteration • Less cascading effect Skygear.io

22. Brought to you by Oursky Build your mobile app fast skygear.io (open source)

How to use Flux (pattern) in React?

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