We Keep Coding

How to access folder from server path

I tried to access folder from my server path in my project but not working.I do not know where I did mistake or missing script.
var http = require('http');
//Actual path is http://proxy.ipt.org/power/confolder
var options = {
host: 'http://proxy.ipt.org',
port: 8081,
path: '/power/confolder'
};
http.get(options, function(resp){
resp.on('data', function(chunk){
console.log(chunk);
//How to read files and How to display what are the folders are there inside confolder
});
}).on("error", function(e){
console.log("Got error: " + e.message);
});
Getting Error: got error: getaddrinfo ENOTFOUND http://proxy.ipt.org/power/confolder
How to read confolder? If anyone know help me to resolve this issue.

I think you just have to remove 'http://' from options.host, so your options variable would be:
var options = {
host: 'proxy.ipt.org',
port: 8081,
path: '/power/confolder'
};
Of course if http://proxy.ipt.org:8081/power/confolder does not reply to get request or the host is not reachable/does not exist you will get an error again. To read confolder you would need the server to return the content in some way but that's another topic that goes beyond how to request the content which is what you are trying here.
Here is a working example with a server that works and returns content when receiving a get request:
var http = require('http');
var options = {
host: 'nodejs.org',
port: 80,
path: '/dist/index.json',
};
http.get(options, function(resp){
resp.on('data', function(chunk){
console.log(chunk);
});
}).on("error", function(e){
console.log("Got error: " + e.message);
});

How to send HTTP Request in node js under proxy

Following node js code works well and get all the required results.
But when i run the code in the computer under proxy settings defined. It doesnt give the result.
var options: https.RequestOptions = {
host: item.hostname,
port: +item.port,
path: item.path,
method: 'POST',
headers: newHeader
}
var req = https.request(options, function(res){
if(res.statusCode !== 200){
//reject();
//return;
}
var result = '';
res.setEncoding('utf8');
res.on('data', function(chunk){
result += chunk;
});
res.on('end', function(){
resolve(result);
});
res.on('error', function(e){
reject(e);
});
});
How to enable proxy support in http module requests in NODE JS that it checks if there is any proxy defined and perform that enabled request.
options data in debug mode :
headers:Object
Accept:"application/json;api-version=3.0-preview.1"
Content-Length:104
Content-Type:"application/json"
host:"marketplace.visualstudio.com"
method:"POST"
path:"/_apis/public/gallery/extensionquery"
port:0

The proxy should be the host/port and the path is the final path of the request that the proxy should make (host:port/path).
Basically e.g. if making a request through a proxy on localhost:8888:
path = host + path, host = 'localhost', port = 8888;

http request in node.js

Iam using following code to send request to a host machine
is there any possible way to send a json data along with options.
var options = {
host: '172.16.2.51',
port: 9090,
path: '/start',
method: 'POST'
};
var req = http.request(options, function (res) {
res.on('data', function (d) {
console.log(d.toString());
});
});
req.on('error', function (e) {
console.error(e);
});
req.end();
code in host machine.Here how can i get the json data.
var sever = http.createserver(function(req,res){
switch(req.url){
case:'/start':
req.on('data',function(chuck){});
req.on('end',function(){
});
}
});

To send data you need use req.write
For example;
req.write(JSON.stringify({'test': 1});
req.end();
But as Andrew suggested in his answer you can use request to help ease HTTP requests.

I think you could use request to do the "post" work.
And on the "host machine", use express.

Node.js Requests returning 301 redirects

I'm brand new to node.js, but I wanted to play around with some basic code and make a few requests. At the moment, I'm playing around with the OCW search (http://www.ocwsearch.com/), and I'm trying to make a few basic requests using their sample search request:
However, no matter what request I try to make (even if I just query google.com), it's returning me
<html>
<head><title>301 Moved Permanently</title></head>
<body bgcolor="white">
<center><h1>301 Moved Permanently</h1></center>
<hr><center>nginx/0.7.65</center>
</body>
</html>
I'm not too sure what's going on. I've looked up nginx, but most questions asked about it seemed to be asked by people who were setting up their own servers. I've tried using an https request instead, but that returns an error 'ENOTFOUND'.
My code below:
var http = require('http');
http.createServer(function (request, response) {
response.writeHead(200, {'Content-Type': 'text/plain'});
response.end('Hello World\n');
var options = {
host:'ocwsearch.com',
path:
'/api/v1/search.json?q=statistics&contact=http%3a%2f%2fwww.ocwsearch.com%2fabout/',
method: 'GET'
}
var req = http.request(options, function(res) {
console.log("statusCode: ", res.statusCode);
console.log("headers: ", res.headers);
res.on('data', function(d) {
process.stdout.write(d);
});
});
req.end();
req.on('error', function(e) {
console.error(e);
});
}).listen(8124);
console.log('Server running at http://127.0.0.1:8124/');
Sorry if this is a really simple question, and thanks for any help you can give!

For me the website I was trying to GET was redirecting me to the secure protocol. So I changed
require('http');
to
require('https');

The problem is that Node.JS's HTTP Request module isn't following the redirect you are given.
See this question for more: How do you follow an HTTP Redirect in Node.js?
Basically, you can either look through the headers and handle the redirect yourself, or use one of the handful of modules for this. I've used the "request" library, and have had good luck with it myself. https://github.com/mikeal/request

var http = require('http');
var find_link = function(link, callback){
var root ='';
var f = function(link){
http.get(link, function(res) {
if (res.statusCode == 301) {
f(res.headers.location);
} else {
callback(link);
}
});
}
f(link, function(t){i(t,'*')});
}
find_link('http://somelink.com/mJLsASAK',function(link){
console.log(link);
});
function i(data){
console.log( require('util').inspect(data,{depth:null,colors:true}) )
}

This question is old now, but I got the same 301 error and these answers didn't actually help me to solve the problem.
I wrote the same code:
var options = {
hostname: 'google.com',
port: 80,
path: '/',
method: 'GET',
headers: {
'Content-Type': 'text/plain',
}
};
var http = require('http');
var req = http.request(options, function(res) {
console.log('STATUS:',res.statusCode);
console.log('HEADERS: ', JSON.stringify(res.headers));
res.setEncoding('utf8');
res.on('data', function(chunk) {
console.log(chunk);
});
res.on('end', function() {
console.log('No more data in response.');
});
});
req.on('error', function(e) {
console.log('problem with request: ', e.message);
});
console.log(req);
req.end();
so after some time I realized that there's a really tiny mistake in this code which is hostname part:
var options = {
hostname: 'google.com',
...
you have to add "www." before your URL to get html content, otherwise there would be 301 error.
var options = {
hostname: 'www.google.com',

How to post to a request using node.js

I am trying to post some json to a URL. I saw various other questions about this on stackoverflow but none of them seemed to be clear or work. This is how far I got, I modified the example on the api docs:
var http = require('http');
var google = http.createClient(80, 'server');
var request = google.request('POST', '/get_stuff',
{'host': 'sever', 'content-type': 'application/json'});
request.write(JSON.stringify(some_json),encoding='utf8'); //possibly need to escape as well?
request.end();
request.on('response', function (response) {
console.log('STATUS: ' + response.statusCode);
console.log('HEADERS: ' + JSON.stringify(response.headers));
response.setEncoding('utf8');
response.on('data', function (chunk) {
console.log('BODY: ' + chunk);
});
});
When I post this to the server I get an error telling me that it's not of the json format or that it's not utf8, which they should be. I tried to pull the request url but it is null. I am just starting with nodejs so please be nice.

The issue is that you are setting Content-Type in the wrong place. It is part of the request headers, which have their own key in the options object, the first parameter of the request() method. Here's an implementation using ClientRequest() for a one-time transaction (you can keep createClient() if you need to make multiple connections to the same server):
var http = require('http')
var body = JSON.stringify({
foo: "bar"
})
var request = new http.ClientRequest({
hostname: "SERVER_NAME",
port: 80,
path: "/get_stuff",
method: "POST",
headers: {
"Content-Type": "application/json",
"Content-Length": Buffer.byteLength(body)
}
})
request.end(body)
The rest of the code in the question is correct (request.on() and below).

Jammus got this right. If the Content-Length header is not set, then the body will contain some kind of length at the start and a 0 at the end.
So when I was sending from Node:
{"email":"joe#bloggs.com","passwd":"123456"}
my rails server was receiving:
"2b {"email":"joe#bloggs.com","passwd":"123456"} 0 "
Rails didn't understand the 2b, so it wouldn't interpret the results.
So, for passing params via JSON, set the Content-Type to application/json, and always give the Content-Length.

To send JSON as POST to an external API with NodeJS... (and "http" module)
var http = require('http');
var post_req = null,
post_data = '{"login":"toto","password":"okay","duration":"9999"}';
var post_options = {
hostname: '192.168.1.1',
port : '8080',
path : '/web/authenticate',
method : 'POST',
headers : {
'Content-Type': 'application/json',
'Cache-Control': 'no-cache',
'Content-Length': post_data.length
}
};
post_req = http.request(post_options, function (res) {
console.log('STATUS: ' + res.statusCode);
console.log('HEADERS: ' + JSON.stringify(res.headers));
res.setEncoding('utf8');
res.on('data', function (chunk) {
console.log('Response: ', chunk);
});
});
post_req.on('error', function(e) {
console.log('problem with request: ' + e.message);
});
post_req.write(post_data);
post_req.end();

There is a very good library that support sending POST request in Nodejs:
Link: https://github.com/mikeal/request
Sample code:
var request = require('request');
//test data
var USER_DATA = {
"email": "email#mail.com",
"password": "a075d17f3d453073853f813838c15b8023b8c487038436354fe599c3942e1f95"
}
var options = {
method: 'POST',
url: 'URL:PORT/PATH',
headers: {
'Content-Type': 'application/json'
},
json: USER_DATA
};
function callback(error, response, body) {
if (!error) {
var info = JSON.parse(JSON.stringify(body));
console.log(info);
}
else {
console.log('Error happened: '+ error);
}
}
//send request
request(options, callback);

Try including the content length.
var body = JSON.stringify(some_json);
var request = google.request('POST', '/get_stuff', {
host: 'server',
'Content-Length': Buffer.byteLength(body),
'Content-Type': 'application/json'
});
request.write(body);
request.end();

This might not solve your problem, but javascript doesn't support named arguments, so where you say:
request.write(JSON.stringify(some_json),encoding='utf8');
You should be saying:
request.write(JSON.stringify(some_json),'utf8');
The encoding= is assigning to a global variable, so it's valid syntax but probably not doing what you intend.

Probably non-existent at the time this question was asked, you could use nowadays a higher level library for handling http requests, such as https://github.com/mikeal/request. Node's built-in http module is too low level for beginners to start with.
Mikeal's request module has built-in support for directly handling JSON (see the documentation, especially https://github.com/mikeal/request#requestoptions-callback).

var request = google.request(
'POST',
'/get_stuff',
{
'host': 'sever',
**'headers'**:
{
'content-type': 'application/json'
}
}
);