node.js Error: connect ECONNREFUSED; response from server

Question

I have a problem with this little program:

var http = require("http"); var request = http.request({     hostname: "localhost",     port: 8000,     path: "/",     method: "GET" }, function(response) {     var statusCode = response.statusCode;     var headers = response.headers;     var statusLine = "HTTP/" + response.httpVersion + " " +statusCode + " " + http.STATUS_CODES[statusCode];     console.log(statusLine);     for (header in headers) {         console.log(header + ": " + headers[header]);     }     console.log();     response.setEncoding("utf8");     response.on("data", function(data) {         process.stdout.write(data);     });     response.on("end", function() {         console.log();     }); }); 

The result in console is this:

 events.js:141       throw er; // Unhandled 'error' event       ^  Error: connect ECONNREFUSED 127.0.0.1:8000     at Object.exports._errnoException (util.js:870:11)     at exports._exceptionWithHostPort (util.js:893:20)     at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1063:14)

I do not understand why this happens.

Answer 1

From your code, It looks like your file contains code that makes get request to localhost (127.0.0.1:8000).

The problem might be you have not created server on your local machine which listens to port 8000.

For that you have to set up server on localhost which can serve your request.

1. Create server.js

   var express = require('express'); var app = express();  app.get('/', function (req, res) {   res.send('Hello World!'); // This will serve your request to '/'. });  app.listen(8000, function () {   console.log('Example app listening on port 8000!');  }); 

2. Run server.js : node server.js

3. Run file that contains code to make request.

Answer 2

Please use [::1] instead of localhost, and make sure that the port is correct, and put the port inside the link.

const request = require('request');     let json = {         "id": id,         "filename": filename     };     let options = {         uri: "http://[::1]:8000" + constants.PATH_TO_API,         // port:443,         method: 'POST',         json: json     };     request(options, function (error, response, body) {         if (error) {             console.error("httpRequests : error " + error);         }         if (response) {             let statusCode = response.status_code;             if (callback) {                 callback(body);             }         }     });