Send Post request to Node.js with PHP cURL - php

Question

I am trying to send a post request through PHP cURL to my node.js server to then emit a message to the client. The server is working and setup as follows:
var app = require('http').createServer(handler)
, io = require('socket.io').listen(app)
, fs = require('fs')
, qs = require('querystring')
app.listen(8000);
function handler(req, res) {
// set up some routes
switch(req.url) {
case '/push':
if (req.method == 'POST') {
console.log("[200] " + req.method + " to " + req.url);
var fullBody = '';
req.on('data', function(chunk) {
fullBody += chunk.toString();
if (fullBody.length > 1e6) {
// FLOOD ATTACK OR FAULTY CLIENT, NUKE REQUEST
req.connection.destroy();
}
});
req.on('end', function() {
// Send the notification!
var json = qs.stringify(fullBody);
console.log(json.message);
io.sockets.emit('push', { message: json.message });
// empty 200 OK response for now
res.writeHead(200, "OK", {'Content-Type': 'text/html'});
res.end();
});
}
break;
default:
// Null
};
}
and my PHP is as follows:
$curl = curl_init();
$data = array('message' => 'simple message!');
curl_setopt($curl, CURLOPT_URL, "http://localhost:8000/push");
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_exec($curl);
The console says that json.message is undefined. Why is it undefined?

Answer 1

You're using querystring.stringify() incorrectly. See the documentation on querystring's methods here:
http://nodejs.org/docs/v0.4.12/api/querystring.html
I believe what you want is something like JSON.stringify() or querystring.parse(), as opposed to querystring.stringify() which is supposed to serialize an existing object into a query string; which is the opposite of what you are trying to do.
What you want is something that will convert your fullBody string into a JSON object.

Answer 2

If your body simply contains a stringified version of the JSON blob, then replace
var json = qs.stringify(fullBody);
With
var json = JSON.parse(fullBody);

Answer 3

try this code
<?php
$data = array(
'username' => 'tecadmin',
'password' => '012345678'
);
$payload = json_encode($data);
// Prepare new cURL resource
$ch = curl_init('https://api.example.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
// Set HTTP Header for POST request
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: application/json',
'Content-Length: ' . strlen($payload))
);
// Submit the POST request
$result = curl_exec($ch);
// Close cURL session handle
curl_close($ch);