nodeJS request POST To localhost:3000 ECONNREFUSED - node.js

Question

At one point I just want to make a POST request to my rails server running on localhost:3000
If a use like postman on even cUrl I can ping my API
But kow, with my node app I want to do this :
var req_body = {
'my_id': id,
'dataTable': data }
var options = {
method: 'POST',
url: config.get('api_url') + 'end_tracking',
json: true,
body: req_body
}
// config.get('api_url') return http://localhost:3000/
request(options, function (error, response, body) {
console.log(error)
... }
this is what I get :
{ Error: connect ECONNREFUSED 127.0.0.1:3000
at Object.exports._errnoException (util.js:896:11)
at exports._exceptionWithHostPort (util.js:919:20)
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1073:14)
code: 'ECONNREFUSED',
errno: 'ECONNREFUSED',
syscall: 'connect',
address: '127.0.0.1',
port: 3000 }
and as I said, if I do this request directly with postman, everything works !

Answer 1

I finally did it !
For a unknown reason, accessing localhost:3000, launched with rails s didn't work at all on my node server
but I worked when I started the rails server with rails s -b 0.0.0.0 !

Answer 2

how i did this , just use the same structure and i hope it works for you
request({
url: url, //URL to hit
method: 'post',
headers: headers,
timeout: 10000,
body: JSON.stringify(body)
}, function (error, result, body) {
if (error) {
console.log(error);
} else if (result.statusCode == 500) {
console.log('not found');
} else {
console.log('success')
}
});
hope it works.