Http.request in node.js

Question

This is my code in node js:

var http = require('http');

var options = { 
    host : '127.0.0.1',
    port: 8124,
    path: '/',
    method: 'GET'
};

http.request(options, function(res){    
    console.log("Hello!");  
}).end();

process.on('uncaughtException', function(err){  
    console.log(err);
});

When I compile it, the compiler shows me the following error:

enter image description here

edit: with the express works, but if I wanted to make it work without express how could I do?

Answer 1

To resolve this issue, it was enough to add to the previous code, the server code.

var http = require('http');

var options = { 
    host : '127.0.0.1',
    port: 8124,
    path: '/',
    method: 'GET'
};

http.request(options, function(res){    
    console.log("Hello!");  
}).end();

process.on('uncaughtException', function(err){  
    console.log(err);
});

http.createServer((req, res)=>{ 
    res.writeHead(200, {'Content-type': 'text/plain'})
    res.end()   
}).listen(8124)

Answer 2

Test this:

const app = require('express')();
app.get('/', (req, res) => {
  res.json({ ok: true });
});
app.listen(8124);

var http = require('http');

var options = {
    host : '127.0.0.1',
    port: 8124,
    path: '/',
    method: 'GET'
};

http.request(options, function(res){
    console.log("Hello!");
}).end();

process.on('uncaughtException', function(err){
    console.log(err);
});

as you can see, it prints Hello! - when something is listening on port 8124. Your problem is on the server side, not on the client side. Specifically, the server that you are trying to connect to is not listening on port 8124 on localhost - at least not on this host.