flutter-web利用dart js 库发起http request

初学flutter，初学前端，尝试在dart中直接使用HttpClient时，直接报出Platform not supported，查资料发现他还不支持浏览器。 通过查阅资料发现可以借助axios 与 dart:js 之间的互相调用来实现。目前还不清楚有没有其它更好的方式。实例代码：

main.dart:

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

void callJS(){
  context['console'].callMethod('log', ['开始调用']);
  JsObject(context['getDartCall'], ['http://*****.com','{ID: 1234 , Name: "Hunter"}']);
}

void jsCallBack(resData){
  //结果回调
  print(resData);
}

void main() {
  //定义回调方法
  context['jsCallBack'] = jsCallBack;
  runApp(new MyApp());
}

class MyApp extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
      return new MaterialApp(
        home: new MyHomePage(),
      );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key}) : super(key: key);

  @override
  _MyHomePageState createState() => new _MyHomePageState();
}

class _MyHomePageState extends State {
  

  @override
  Widget build(BuildContext context) {
    var spacer = new SizedBox(height: 32.0);

    return new Scaffold(
      body: new Center(
        child: new Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            new Text('Dart 与 JS 互相调用实例'),
            new Text('发起调用'),
            spacer,
            new RaisedButton(
              onPressed: (){
                callJS();
              },
              child: new Text('发起调用'),
            ),
          ],
        ),
      ),
    );
  }
}

 在web下的index.html里面需要引入对应的js