Flux Architecture

1. Introduction

Flux is an application architecture for building client-side web applications, particularly those using React. It provides a unidirectional data flow, which helps manage data and state in a predictable manner.

2. Key Concepts

• Unidirectional data flow: Data only flows in one direction.
• Stores: Hold the application state and business logic.
• Actions: Payloads of information that send data from the application to the dispatcher.
• Dispatcher: Manages the flow of data and ensures that stores receive the actions.

3. Components

const addTodo = (text) => {
    return {
        type: 'ADD_TODO',
        payload: text
    };
};

import { Dispatcher } from 'flux';
const AppDispatcher = new Dispatcher();
export default AppDispatcher;

class TodoStore {
    constructor() {
        this.todos = [];
        AppDispatcher.register(this.handleActions.bind(this));
    }

    handleActions(action) {
        switch (action.type) {
            case 'ADD_TODO':
                this.todos.push(action.payload);
                this.emit('change');
                break;
        }
    }
}

4. Step-by-Step Process

graph TD;
        A[User Interaction] -->|Dispatches Action| B(Dispatcher);
        B --> C{Stores};
        C --> D[Update State];
        D --> E[Render View];
    

5. Best Practices

• Keep your actions simple and descriptive.
• Use stores to encapsulate state and logic.
• Ensure that components are stateless when possible.
• Use context or hooks to manage state in functional components.

6. FAQ