starlight_http_cached: 
    git:
      url: https://github.com/YeMyoAung/starlight_http_cached.git

import 'package:starlight_http_cached/starlight_http_cached.dart';

 await StarlightHttpCached.instance;

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

Future<void> main() async {
  ///important
  WidgetsFlutterBinding.ensureInitialized();

  ///important
  await StarlightHttpCached.instance;

  ///setcached
  StarlightHttpCached.setCached(
    name: 'helloworld',
    data: {
      "Ye Myo Aung": "Ye Myo Aung",
    },
  );
}

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

Future<void> main() async {
  ///important
  WidgetsFlutterBinding.ensureInitialized();

  ///important
  await StarlightHttpCached.instance;

  ///get cached
  print(
    StarlightHttpCached.getCached(
      name: 'helloworld',
    ),
  );
}

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

Future<void> main() async {
  ///important
  WidgetsFlutterBinding.ensureInitialized();

  ///important
  await StarlightHttpCached.instance;

  ///delete cached
  StarlightHttpCached.deleteCached(
    name: 'helloworld',
  );
}

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

Future<void> main() async {
  ///important
  WidgetsFlutterBinding.ensureInitialized();

  ///important
  await StarlightHttpCached.instance;

  ///check cached
  print(
    StarlightHttpCached.hasCached(name: 'helloworld'),
  );
}