react-local-storage-context

A custom React hook and context provider to easily manage localStorage with React context. This package provides a simple API to store and retrieve values from localStorage while keeping them in sync with your React app's state using context and hooks.

Installation

To install the package, run:

npm install react-local-storage-context

Usage
1. Wrap Your App with StorageProvider
First, wrap your app with the StorageProvider component to provide the localStorage context to all child components.

tsx
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import React from 'react';
import { StorageProvider } from 'react-local-storage-context';
const App = () => {
  return (
    <div>
      <h1>My React App</h1>
    </div>
  );
};

const Root = () => (
  <StorageProvider>
    <App />
  </StorageProvider>
);

export default Root;
2. Use useStorage Hook in Your Components
Now, you can use the useStorage hook to access and update localStorage values. The hook returns the current value from localStorage and a setValue function to update it.

Basic Example
import React from 'react';
import { useStorage } from 'react-local-storage-context';

const UserNameComponent = () => {
  const { value, setValue } = useStorage<{ name: string }>();

  return (
    <div>
      <h1>Welcome {value?.name || 'Guest'}</h1>
      <button onClick={() => setValue({ name: 'Megha' })}>Set Name</button>
    </div>
  );
};

export default UserNameComponent;
In the above example:

The useStorage hook accesses the localStorage for a name property.
The setValue function is used to set a new value for name in localStorage.
3. Optional: Set Default Values
You can provide default values for localStorage when using the useStorage hook. This is useful if you want to initialize values in localStorage.
const { value, setValue } = useStorage<{ firstName: string; lastName: string }>({
  firstName: 'John',
  lastName: 'Doe',
});
In this example, calling clearName will remove the name value from localStorage.

API
StorageProvider: A component that provides the localStorage context to the app.
useStorage: A hook to get and set values in localStorage.
Arguments for useStorage
type (optional): You can provide an object type to define the structure of the value you want to store in localStorage.
Methods
value: The current value stored in localStorage.
setValue: A function to set or update the value in localStorage.
clearValue: A function to clear the value in localStorage.
Example Project
Here's a simple example project that uses react-local-storage-context:

tsx
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import React from 'react';
import { StorageProvider, useStorage } from 'react-local-storage-context';

const App = () => {
  const { value, setValue } = useStorage<{ name: string }>();

  return (
    <div>
      <h1>Welcome {value?.name || 'Guest'}</h1>
      <button onClick={() => setValue({ name: 'Megha' })}>Set Name</button>
    </div>
  );
};

const Root = () => (
  <StorageProvider>
    <App />
  </StorageProvider>
);

export default Root;
License
MIT License. See LICENSE for more information.

Contributing
If you find a bug or want to contribute to the project, feel free to open an issue or submit a pull request.

markdown
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### Notes on the `README.md` file:
- **Installation**: Instructions for installing the package via npm.
- **Usage**: Basic and optional usage examples for both basic and advanced implementations.
- **API**: A simple overview of the API (methods and properties available via the hook).
- **Example Project**: A complete example React app using the package.
- **License and Contributing**: Details on how to contribute and the project's license.