DataCacheX #

A Flutter package for efficient API caching, built with Clean Architecture principles. This package provides a simple and robust way to cache API responses locally, improving the performance and user experience of your Flutter applications.

Features #

• Local Caching: Store API responses locally using SharedPreferences for quick access.
• Clean Architecture: Organized code structure that separates concerns into data, domain, and presentation layers.
• Easy to Use: Simple API for caching and retrieving data.
• Robust Error Handling: Built-in error handling to manage caching operations.
• Extensible: Easily extendable for additional features like cache expiration or different storage solutions.

Installation #

Add the following dependency to your pubspec.yaml file:

dependencies:
  data_cache_x: ^0.1.0

Then run:

flutter pub get

Usage #

Import the Package #

import 'package:your_package_name/your_package_name.dart';

Initialize the Cache Manager #

Create an instance of the CacheManager:

final cacheManager = CacheManager(CacheRepository(LocalDataSource()));

Caching Data #

To cache data, use the cacheData method:

await cacheManager.cacheData('your_key', 'your_data');

Retrieving Cached Data #

To retrieve cached data, use the getCachedData method:

String? cachedData = await cacheManager.getCachedData('your_key');
if (cachedData != null) {
  print('Cached Data: $cachedData');
} else {
  print('No data found for the given key.');
}

Clearing Cached Data #

To clear cached data, use the clearCache method:

await cacheManager.clearCache('your_key');

Example #

Here’s a simple example of how to use the package in a Flutter application:

import 'package:flutter/material.dart';
import 'package:your_package_name/your_package_name.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final cacheManager = CacheManager(CacheRepository(LocalDataSource()));

    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('API Cache Example')),
        body: Center(
          child: ElevatedButton(
            onPressed: () async {
              await cacheManager.cacheData('example_key', 'Hello, World!');
              String? data = await cacheManager.getCachedData('example_key');
              print(data); // Output: Hello, World!
            },
            child: Text('Cache Data'),
          ),
        ),
      ),
    );
  }
}