'Header bereits gesendet' Fehler bei der Verwendung von restify mit socket.io

Ich bin auf official restify guide zu socketio mit restify verwenden.'Header bereits gesendet' Fehler bei der Verwendung von restify mit socket.io

api.js

var mongoose = require('mongoose'); 
var restify = require('restify'); 
var fs = require('fs'); 
var server = restify.createServer({ 
    name: 'myapp', 
    version: '1.0.0' 
}); 
var io = require('socket.io')(server); 
server.get('/', function indexHTML(req, res, next) { 
    fs.readFile(__dirname + '/sockettest.html', function (err, data) { 
     if (err) { 
      next(err); 
      return; 
     } 

     res.setHeader('Content-Type', 'text/html'); 
     res.writeHead(200); 
     res.end(data); 
     next(); 
    }); 
}); 
io.on('connection', function(socket){ 
    console.log('a user connected'); 
});

sockettest.html

<html> 
<script src="https://cdn.socket.io/socket.io-1.3.7.js"></script> 
<script> 
    var socket = io(); 
</script> 
</html>

Wenn ich wechseln Sie zu localhost:3000 ich diesen Fehler:

myapp listening at http://[::]:3000 
_http_outgoing.js:350 
    throw new Error('Can\'t set headers after they are sent.'); 
    ^

Error: Can't set headers after they are sent. 
    at ServerResponse.OutgoingMessage.setHeader (_http_outgoing.js:350:11) 
    at ServerResponse.format (/host/bid-it/bid-it/node_modules/restify/lib/response.js:145:10) 
    at ServerResponse.send (/host/bid-it/bid-it/node_modules/restify/lib/response.js:338:14) 
    at emitRouteError (/host/bid-it/bid-it/node_modules/restify/lib/server.js:201:13) 
    at onRoute (/host/bid-it/bid-it/node_modules/restify/lib/server.js:754:21) 
    at Router.find (/host/bid-it/bid-it/node_modules/restify/lib/router.js:608:5) 
    at Server._route (/host/bid-it/bid-it/node_modules/restify/lib/server.js:747:21) 
    at routeAndRun (/host/bid-it/bid-it/node_modules/restify/lib/server.js:705:14) 
    at Server._handle (/host/bid-it/bid-it/node_modules/restify/lib/server.js:725:9) 
    at Server.onRequest (/host/bid-it/bid-it/node_modules/restify/lib/server.js:326:14) 
    at emitTwo (events.js:87:13) 
    at Server.emit (events.js:172:7) 
    at HTTPParser.parserOnIncoming [as onIncoming] (_http_server.js:525:12) 
    at HTTPParser.parserOnHeadersComplete (_http_common.js:88:23)

Können Sie mir bitte sag mir wh bei vermisse ich?

Quelle

2015-11-19 Eray

Mit

var io = require('socket.io')(server.server);

statt

var io = require('socket.io')(server);

mein Problem gelöst.

Quelle

2015-11-20 00:21:54 Eray

Versuchen Sie, die socket.io Parameter auf true setzen innerhalb von wo Sie Ihre restify Server erstellen, etwa so:

var server = restify.createServer({ 
    name: 'myapp', 
    version: '1.0.0, 
    socketio: true 
});

Dies das Problem für mich gelöst.

Quelle

2017-07-21 17:46:39 tryingToDevelop

'Header bereits gesendet' Fehler bei der Verwendung von restify mit socket.io

Antwort

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