Node.js custom Module

Question

When I run app.js, I get this error:

MBPdiDaniele3:Desktop danielemartini$ node app.js 
events.js:141
      throw er; // Unhandled 'error' event
      ^

Error: connect ECONNREFUSED 127.0.0.1:8080
    at Object.exports._errnoException (util.js:870:11)
    at exports._exceptionWithHostPort (util.js:893:20)
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1063:14)
MBPdiDaniele3:Desktop danielemartini$

Here's the code for make_request.js:

var http = require('http');

var makeRequest = function(message) {

    var options = {
        host: 'localhost', port: 8080, path:'/', method: 'POST'
    }

    var request = http.request(options, function(response) {
        response.on('data', function(data) {
            console.log(data);
        });
    });
    request.write(message);
    request.end();
};
module.exports = makeRequest;

Here's the code for app.js:

var makeRequest = require('./make_request');

makeRequest("Here's looking at you, kid");
makeRequest("Hello, this is dog");

Maybe it's because you don't have anything listening on port 8080. — rgajrawala
– rgajrawala, Commented Jan 24, 2016 at 12:29
Make sure no other services are running port 8080 (Tomcat or a previous version of your service.) — xaviert
– xaviert, Commented Jan 24, 2016 at 13:15
Make sure something IS running on port 8080 since that's what you are connecting to — chriskelly
– chriskelly, Commented Jan 24, 2016 at 13:45

xShirase · Accepted Answer · 2016-01-24 13:34:09Z

1

There are several possible causes :

No service is running on localhost:8080
A service runs on 8080 which refuses connections actively.

To check what is running, use one of those 2 commands (Unix) :

lsof -i :8080 -S
netstat -a | grep 8080

3 - Your running service isn't bound to your internal IP.

I've encountered the issue a few times on Cloud servers, where localhost/127.0.0.1 are not recognized. Try using the external IP of your machine (and make sure the firewall lets you make requests), or force your service to bind to all interfaces.

Hope it helps.

answered Jan 24, 2016 at 13:34

xShirase

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3 Comments

user177800 Over a year ago

This is not an answer this is guessing and general debugging instructions

chriskelly Over a year ago

@Jarrod_Roberson: This may not be the answer but it is helpful and therefore useful.

xShirase Over a year ago

@JarrodRoberson Isn't Stack Overflow about helping users? There are 3 possible answers to this question, and following my informations should help OP solve his problem. If anything, the question may need to be rewritten to include 'I've tried this and that', therefore removing the guessing element.

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