Socket.io在节点服务器上不起作用

Question

I'm running a server and all it needs to do is connect to a 3rd party public socket.io stream. I have it working in my react app but can't get it to work on my server. I'm using node and express.When I run I get no errors. Here is my code

 var express = require("express"); var app = express(); var port = 3000; var io = require('socket.io-client/dist/socket.io'); var socket = io.connect('http://socket.coincap.io', {transports: ['websocket']}); socket.on('trades', function(tradeMsg) { console.log("worked"); }); app.listen(port, () => { console.log("Server listening on port " + port); }); 

Answer 1

Just checked my code, I do something like the following which is a bit different than your code. Don't know if it's your solution but maybe that could helps you.

In a separate socket-io.js

module.exports = function (app, server) {
     var socketIO = require('socket.io').listen(server, {'transports': ['websocket']});
     global.socketIO = socketIO;

     socketIO.set('origins', '*:*');

     socketIO.sockets.on('trades', function (tradeMsg) {
         console.log("worked");
     });
 };

Then in my www after var server = http.createServer(app); I've got:

require('socket-io')(app, server);

Answer 2

You can try installing socket.io-client using npm .

npm install socket.io-client --save

And try running the following code. It should work fine.

var express = require("express");
var app = express();
var port = 3000;

var socket = require('socket.io-client')('http://socket.coincap.io');


socket.on('trades', function(tradeMsg) {

    console.log("worked");

});



app.listen(port, () => {
   console.log("Server listening on port " + port);
});