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Reclare
Reclare

Travis

Declarative State and Logic Management

IntroductionKey FeaturesBasic ExampleDocumentationFeedbackContribution

What is Reclare ?

Reclare is a lightweight library to manage the application state alongside business logic, without compromising from the predictability of the state. It is inspired by Redux and the Elm architecture and includes many of the familiar concepts.

Key Features

  • Manage state and logic together
  • Unidirectional data flows
  • Predictable, immutable state
  • Handle requests / side effects
  • Built-in way to modularise your code
  • For all frameworks - offical middleware for React
  • Easy to install, minimal configuration
  • Easy-to-grasp concepts

Basic Example

View on JSFiddle

Below is an example of what declarations would look like in the context of a simple counter implementation with one simple rule: the counter cannot go below zero:

{
  on: 'increment',
  reducer: ({ state }) => ({ ...state, counter: state.counter + 1 })
  reaction: ({ state }) => console.log(`Incremented to ${state.counter}`)
},
{
  on: 'decrement',
  when: ({ state }) => state.counter > 0,
  reducer: ({ state }) => ({ ...state, counter: state.counter - 1 }),
  reaction: ({ state }) => console.log(`Decremented to ${state.counter}`)
},
{
  on: 'decrement',
  when: ({ state }) => state.counter <= 0,
  reaction: () => alert('Counter already at zero')
}

Upon the broadcast of increment, the first declaration will be invoked. It will increment the counter and log the updated number. decrement event hits two declarations. First one only invokes when the counter is greater than zero and decrements the counter. Second one invokes when counter is zero, and alerts the error message.

Broadcasting these events would look something like this:

<Button value="+" onClick={() => broadcast('increment')} />
<Button value="-" onClick={() => broadcast('decrement')} />

Documentation

The documentation is still under construction, it still has some missing parts. My apologies for that. I will try to complete it as soon as possible.

Click here for the documentation

Feedback

What do you think about Reclare? Do you have any ideas? I would love to hear them, and kind of feedback would be much appreciated. You can email me or contact me some other way.

Contribution

The contribution guideline for Reclare is not ready at the time being, but if you love this project and want to help, please contact me.