Node.js socket.io未处理websocket未处理错误

Question

我正在使用socket.io-stream库在2个节点服务器之间传输文件。

服务器A ：（发送文件）

  var clientIO = require('socket.io-client');
  var ss = require('socket.io-stream');

  var clientSocket= clientIO(`http://ServerB_Address`);
  clientSocket.on('error', (error) => {
      console.log(error);
  });

  var stream = ss.createStream({objectMode: true});
  ss(clientSocket).emit('send-file', stream, data);  
  var uploadedBytes = 0;
  var from = 0;
  var reader = fs.createReadStream(filePath, {start: from});
  reader.pipe(stream)
   .on('error', (error) => {
       console.log(error);
   })
   .on('data', (chunk) => {
       uploadedBytes += Buffer.byteLength(chunk);                                
   });

服务器B ：（接收文件）

 var fs = require('fs');
    var io = require('socket.io')(http);
    var ss = require('socket.io-stream');

    io.on('connection', (socket) => {
        // listen to send file
        ss(socket).on('send-mail', (stream, data) => {
            console.log(`*** Begin receive file`);

            var writer = fs.createWriteStream(downloadPath, {flags: 'a'});
            stream.pipe(writer);

            var size = 0;
            stream.on('data', (chunk) => {
                size += chunk.length;
                console.log(`*** Receive ${size} from mail`);
            });

            stream.on('end', () => {
                console.log(`*** End file`);
            });

            stream.on('error', (error) => {
                console.log(`*** Error when receiving file`);
                console.log(error);
            });
        });
    });

它工作正常，但是在传输文件时，如果第二个节点服务器已停止，则另一台服务器中的应用程序崩溃并且引发了未处理的错误事件

请任何人告诉我如何捕获此错误？如果有更好的方法在节点服务器之间传输文件？