socket.io + node.js on heroku

Question

I\'m having some issues in compiling a socket.io app on heroku.

Thats the app.js file

var app = require(\'express\').createServer()
   , io = require         


        

Answer 1

I did some googling but cant find the solution, But i tried to change my code as below and it started to work...

var express = require('express'),
    app = express(), 
    server = require('http').createServer(app),
    io = require('socket.io').listen(server),

var port = process.env.PORT || 5000; // Use the port that Heroku provides or default to 5000

server.listen(port, function() {
});

io.configure(function () {
    io.set("transports", ["xhr-polling"]);
    io.set("polling duration", 10);
    io.set("log level", 1);
});

let me know if you same issue and still not getting success..

Answer 2

Heroku is failing to build hiredis. The reason is that hiredis (the node.js module) depends on hiredis (the C library), which needs GNU make, which is not available on your slug.

Question is, why is NPM trying to build hiredis while it's not in your dependencies ?

You should check if hiredis appears anywhere in your project (grep -R hiredis .). Another possibility is that Heroku is trying to provide redis to all node.js apps ?

I'd check with Heroku's support.

Answer 3

WAAAAAAAIT A SECOND.

I noticed after I ran grep -R hiredis . that under the directory ./node_modules/socket.io/node_modules there appears the folder redis. Apparently, socket.io is now shipping with redis built in, which messes with Heroku.

Try fooling around with removing the redis folder from socket.io's node_modules folder. I solved the issue by removing socket.io altogether.

Answer 4

When you run npm install locally, hiredis creates some files with paths that are specific to your machine. When you push these cached dependencies to Heroku, the build fails.

Waf: Entering directory `/Users/gaggina/Desktop/socket2/node_modules/socket.io/node_modules/redis/node_modules/hiredis/build'

You can get around this problem by removing the node_modules/hiredis directory from source control, letting Heroku compile it anew:

git rm -rf node_modules/hiredis
rm -rf node_modules/hiredis
echo "node_modules/hiredis" >> .gitignore

Answer 5

I've posted an answer to a similar question at deploy nodejs to heroku and that seems to have solved the problem.

Basically try using socket.io 0.9.6 instead of 0.9.8.

Answer 6

I was running into the same problem while messing around with heroku. All the paths seemed to be there. Running Ubuntu 12.04 and I even created a sym link for gmake. Nothing fixed it. I tried this eventually

"dependencies": {
  "express": "3.0.0rc2",
  "ejs": "*",
  "stylus": "*",
  "mongojs": "0.4.3"
},
"bundledDependencies": {
  "socket.io": "*"
},

instead of

"dependencies": {
  "express": "3.0.0rc2",
  "ejs": "*",
  "stylus": "*",
  "mongojs": "0.4.3",
  "socket.io": "*"
},

and this seemed to fix it and make heroku happy. If you find a proper solution, do let me know.