JSON RPC2: How to handle automatic reconnection on the client side

[wanclem]

I have this:

import 'dart:async';
import 'package:json_rpc_2/json_rpc_2.dart';
import 'package:web_socket_channel/web_socket_channel.dart';

class RPClient {
  static Client? _client;
  static WebSocketChannel? _socket;
  static const String _url = "ws://localhost:8080";

  static Future<void> _initialize() async {
    _socket = WebSocketChannel.connect(Uri.parse(_url));
    _client = Client(_socket!.cast<String>());
    unawaited(_client!.listen());
  }

  static Future<dynamic> call(
    String functionName,
    Map<String, dynamic> params,
  ) async {
    if (_client == null) {
      await _initialize();
    }
    try {
      return await _client!.sendRequest(functionName, params);
    } on RpcException {
      rethrow;
    } catch (e) {
      rethrow;
    }
  }
}

If I deliberately restart my server I get back Client closed on the client side.

Are there any techniques to enable automatic reconnection?