How to structure mobx

MobX is a simple, scalable state management library that uses the principles of Transparent Functional Reactive Programming (TFRP). It enables state management to be intuitive and predictable, suitable for both simple and complex applications.

Basic Steps to Build MobX

1. Installing MobX

First, install MobX and related libraries (such as mobx-react for React projects) in your project using npm or yarn:

bash
npm install mobx mobx-react --save

or

bash
yarn add mobx mobx-react

2. Creating Observable States

In MobX, your application state is typically stored in observable objects. Any change to these objects automatically triggers updates to the view.

javascript
import { observable } from "mobx";

class Store {
    @observable count = 0;

    constructor() {
        makeAutoObservable(this);
    }

    increment() {
        this.count++;
    }

    decrement() {
        this.count--;
    }
}

In this example, count is an observable property, and any change to it is tracked by MobX.

3. Using Actions to Modify State

In MobX, you modify state using actions. This not only tracks state changes but also facilitates more complex state logic and middleware.

javascript
import { action } from "mobx";

class Store {
    @observable count = 0;

    @action
    increment() {
        this.count++;
    }

    @action
    decrement() {
        this.count--;
    }
}

4. Integrating with React

To use MobX in React components, wrap your component with the observer higher-order component. This ensures that any component using the observed objects automatically responds to state changes.

javascript
import React from 'react';
import { observer } from 'mobx-react';
import store from './store';

const Counter = observer(() => (
    <div>
        Count: {store.count}
        <button onClick={() => store.increment()}>Increment</button>
        <button onClick={() => store.decrement()}>Decrement</button>
    </div>
));

export default Counter;

Summary

The basic steps to build MobX include setting up the MobX environment, defining observable states, implementing actions to modify state, and integrating the state into your React components. By following these steps, you can create a responsive application where state updates automatically reflect in the UI, improving development efficiency and user experience.