在谷歌应用程序引擎节点应用程序中的套接字io [英] Socket io in node app on google app engine
问题描述
我希望在GAE上运行使用套接字io在节点js中编写的p2p聊天。
我的应用程序在本地工作正常，但运行时收到错误消息它在GAE服务器上与我认为的socket io相关。
以下是我本地 client.html 在本地运行时：
< script src =/ socket.io/socket.io.js\"> ;< /脚本>
<！ - < script src =https://cdn.socket.io/socket.io-1.2.0.js>< / script> - >
< script type =text / javascript>
//我们的socket.io代码在这里
var socketio = io.connect（127.0.0.1:1337）;
socketio.on（message_to_client，function（data）{
to_history（data ['message']）;
}）;
函数send_message（）{
var msg = [document.getElementById（text1）。value，user1，uuid];
socketio.emit（message_to_server，{
message：msg
}）;
}
< / script>
我见过博客/文章说，为了部署，我需要允许防火墙规则这里的SO （现在已经到位）。我也尝试将我部署的应用程序指向一个静态外部IP，例如（在我的谷歌云控制台中使其静态）：
var socketio = io.connect（'https://104.197.51.XXX'）
或指向它到我的防火墙规则中指定的端口65080（请参阅google 这里：
var socketio = io.connect（'https://104.197.51.XXX:65080 '）
这些都无效。
我已经装好了html和jQuery的一部分，而且css也加载得很好，它只是套接字的东西，我似乎错了，我必须改变什么？
如果这是有用的，这里是app.yaml：
runtime：nodejs
vm ：true
非常感谢任何帮助，谢谢。
不幸的是，App Engine不支持websockets（还）。你使用的黑客真的不可靠的原因有几个：
- 它直接连接到实例，它可以去随时关闭或者随时回收
- 缺少魔法哈希，真的没有办法让https沿着这条路线走下去。
总之 - 这不是生产准备。那已经说过了......
https://github.com/GoogleCloudPlatform/nodejs-docs-samples/tree/master/appengine/websockets
该链接将向您展示如何设置它的一个工作示例和说明。
相反，我建议使用pubnub：
https://www.pubnub.com/docs/nodejs-javascript/pubnub-javascript-sdk
它有一个非常好的API，它将比任何可以与App Engine一起攻击的任何东西都更加可靠（你知道的，直到我们解决这个问题）。你可以看到我在这里完成的几个例子：
我希望这有助于您！
I'd like to run a p2p chat written in node js with socket io on GAE.
My app works locally fine but I get error messages when I run it on the GAE servers related to the socket io I think.
Here are the two relevant script tags of my local client.html when running locally:
<script src="/socket.io/socket.io.js"></script>
<!-- <script src="https://cdn.socket.io/socket.io-1.2.0.js"></script> -->
<script type="text/javascript">
// our socket.io code goes here
var socketio = io.connect("127.0.0.1:1337");
socketio.on("message_to_client", function (data) {
to_history(data['message']);
});
function send_message() {
var msg = [document.getElementById("text1").value, user1, uuid];
socketio.emit("message_to_server", {
message: msg
});
}
</script>
I've seen blogs/posts saying that for deployment I need to allow a firewall rule here on SO (which is in place now). I also tried pointing my deployed app to a static external IP like (after making it static in my google cloud console):
var socketio = io.connect('https://104.197.51.XXX')
or to point it to the port 65080 specified in my firewall rule (see documentation by google here:
var socketio = io.connect('https://104.197.51.XXX:65080')
None of this works.
I have the html loaded fine and the jQuery part I have and css is also loading just fine. It's just the socket stuff that I seem to be getting wrong. What do I have to change?
If this is of use, here the app.yaml:
runtime: nodejs
vm: true
Any help is greatly appreciated. Thanks.
Sadly, App Engine just doesn't support websockets (yet). The hack-around you're using is really unreliable for a few reasons:
- it makes a direct connection to the instance, which can go down or be recycled at any time
- Short of magic hackery, there's really no way to get https going down this route.
In short - this is not production ready. That having been said....
https://github.com/GoogleCloudPlatform/nodejs-docs-samples/tree/master/appengine/websockets
That link will show you a working example and instructions of how to set it up.
Instead of that - I'd suggest using pubnub: https://www.pubnub.com/docs/nodejs-javascript/pubnub-javascript-sdk
It has a really nice API, and is going to be way more reliable than anything you can hack together with App Engine (you know, until we fix this). You can see a few examples that I've done here:
- https://github.com/JustinBeckwith/cloudcats/blob/master/web/public/script.js
- https://github.com/JustinBeckwith/hatspin/blob/master/public/script.js
I hope this helps!
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