Question

我是sailsjs的新手并且在尝试实现这个例子时卡住了：

http://sailsjs.org/documentation/concepts/realtime

API /控制器/ SayController.js

module.exports = {
  hello: function(req, res) {
    // Make sure this is a socket request (not traditional HTTP)
    if (!req.isSocket) {return res.badRequest();}
    // Have the socket which made the request join the "funSockets" room
    sails.sockets.join(req, 'funSockets');
    // Broadcast a "hello" message to all the fun sockets.
    // This message will be sent to all sockets in the "funSockets" room,
    // but will be ignored by any client sockets that are not listening-- i.e. that didn't call `io.socket.on('hello', ...)`
    sails.sockets.broadcast('funSockets', 'hello', req);
    // Respond to the request with an a-ok message
    return res.ok();
  }
}

资产/ JS / myapp.js

io.socket.on('hello', function gotHelloMessage (data) {
  console.log('Socket `' + data.id + '` joined the party!');
});
io.socket.get('/say/hello', function gotResponse(body, response) {
  console.log('Server responded with status code ' + response.statusCode + ' and data: ', body);
})

现在，当我运行应用程序时，我收到错误

ending 500 ("Server Error") response: 
 RangeError: Maximum call stack size exceeded
    at Server.hasOwnProperty (native)
    at _hasBinary (/home/ubuntu/.nvm/versions/node/v4.4.5/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/has-binary/index.js:49:45)
    at _hasBinary (/home/ubuntu/.nvm/versions/node/v4.4.5/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/has-binary/index.js:49:63)

请帮忙......

Answer 1

我认为sails.sockets.broadcast()的参数必须稍微调整一下。也许文档示例已过时或仅仅是不完整。试试这个：

<强> SayController.js：

module.exports = {
  hello: function(req, res) {
    // Make sure this is a socket request (not traditional HTTP)
    if (!req.isSocket) {return res.badRequest();}

    // Have the socket which made the request join the "funSockets" room
    sails.sockets.join(req, 'funSockets');

    // Broadcast a "hello" message to all the fun sockets.
    // This message will be sent to all sockets in the "funSockets" room,
    // but will be ignored by any client sockets that are not listening-- i.e. that didn't call `io.socket.on('hello', ...)`
    //                                             ▼ this is "data" in io.socket.on('hello', function gotHelloMessage (data)
    sails.sockets.broadcast('funSockets', 'hello', {id: 'my id'}, req);

    // Respond to the request with an a-ok message
    // ▼ The object returned here is "body" in io.socket.get('/say/hello', function gotResponse(body, response)
    return res.ok({
        message: "OK"
    });
  }
}

sails js sockets - 超出最大调用堆栈大小错误

1 个答案: