flutter custom websocket routing implementation

After the server pushes data to the client in flutter websocket, many people actually handle it if / switch; I feel that this way of writing is not very good!

One way I thought of:

Create two files and sums in a new socket directory under the lib directory;
: Mainly controls the connection, disconnection and processing of received messages;
Then route the messages returned by the websocket server;

import 'package:lee/logic/';

typedef void RouteHandle(Map params);

var wsRouter = new WsRouter();

class WsRouter {
 static Map&lt;String, RouteHandle&gt; _routers = new Map();

 init() {
  ((route) {
   ((name, value) {
    (name, value);
   });
  });
 }

 // Add routing void add(String name, RouteHandle handle) {
  WsRouter._routers[name] = handle;
 }

 //Routing processing Future&lt;void&gt; handle(String name, Map params) async {
  RouteHandle handle = WsRouter._routers[name];
  if (handle == null) {
   print("Route does not exist");
   return;
  }
  handle(params);
 }
}

List&lt;Map&lt;String, RouteHandle&gt;&gt; routers = [
 {"login": },
 {"kick": },
];

import 'package:lee/socket/';
import 'package:web_socket_channel/';
import 'dart:convert';

var webSocket = new WebSocket();

class WebSocket {
 // webSocket connection IOWebSocketChannel webSocketChannel;

 factory WebSocket() =&gt; _webSocket();

 static WebSocket _instance;

 // Constructor WebSocket._() {
  // Initialize webSocket routing  ();
 }

 static WebSocket _webSocket() {
  if (_instance == null) {
   _instance = WebSocket._();
  }
  return _instance;
 }

 conn() {
  IOWebSocketChannel channel = new (
    "ws://127.0.0.1:8080/ws",
    pingInterval: Duration(milliseconds: 100));

  
    .listen((data) =&gt; onMessage(data), onError: onError, onDone: onDone);

   = channel;
 }

 onMessage(response) async {
  // For example, the server returns a json probably like this  // {"cmd":"kick","data":{}}
  // {"cmd":"login","data":{}}
  Map params = (response);
  (params["cmd"], params["data"]);
 }

 onError(err) async {}

 onDone() async {}
}

The above is all the content of this article. I hope it will be helpful to everyone's study and I hope everyone will support me more.