Request
ππΎ Simplified HTTP request client.
Install / Use
/learn @request/RequestREADME
Deprecated!
As of Feb 11th 2020, request is fully deprecated. No new changes are expected to land. In fact, none have landed for some time.
For more information about why request is deprecated and possible alternatives refer to this issue.
Request - Simplified HTTP client
Super simple to use
Request is designed to be the simplest way possible to make http calls. It supports HTTPS and follows redirects by default.
const request = require('request');
request('http://www.google.com', function (error, response, body) {
console.error('error:', error); // Print the error if one occurred
console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received
console.log('body:', body); // Print the HTML for the Google homepage.
});
Table of contents
- Streaming
- Promises & Async/Await
- Forms
- HTTP Authentication
- Custom HTTP Headers
- OAuth Signing
- Proxies
- Unix Domain Sockets
- TLS/SSL Protocol
- Support for HAR 1.2
- All Available Options
Request also offers convenience methods like
request.defaults and request.post, and there are
lots of usage examples and several
debugging techniques.
Streaming
You can stream any response to a file stream.
request('http://google.com/doodle.png').pipe(fs.createWriteStream('doodle.png'))
You can also stream a file to a PUT or POST request. This method will also check the file extension against a mapping of file extensions to content-types (in this case application/json) and use the proper content-type in the PUT request (if the headers donβt already provide one).
fs.createReadStream('file.json').pipe(request.put('http://mysite.com/obj.json'))
Request can also pipe to itself. When doing so, content-type and content-length are preserved in the PUT headers.
request.get('http://google.com/img.png').pipe(request.put('http://mysite.com/img.png'))
Request emits a "response" event when a response is received. The response argument will be an instance of http.IncomingMessage.
request
.get('http://google.com/img.png')
.on('response', function(response) {
console.log(response.statusCode) // 200
console.log(response.headers['content-type']) // 'image/png'
})
.pipe(request.put('http://mysite.com/img.png'))
To easily handle errors when streaming requests, listen to the error event before piping:
request
.get('http://mysite.com/doodle.png')
.on('error', function(err) {
console.error(err)
})
.pipe(fs.createWriteStream('doodle.png'))
Now letβs get fancy.
http.createServer(function (req, resp) {
if (req.url === '/doodle.png') {
if (req.method === 'PUT') {
req.pipe(request.put('http://mysite.com/doodle.png'))
} else if (req.method === 'GET' || req.method === 'HEAD') {
request.get('http://mysite.com/doodle.png').pipe(resp)
}
}
})
You can also pipe() from http.ServerRequest instances, as well as to http.ServerResponse instances. The HTTP method, headers, and entity-body data will be sent. Which means that, if you don't really care about security, you can do:
http.createServer(function (req, resp) {
if (req.url === '/doodle.png') {
const x = request('http://mysite.com/doodle.png')
req.pipe(x)
x.pipe(resp)
}
})
And since pipe() returns the destination stream in β₯ Node 0.5.x you can do one line proxying. :)
req.pipe(request('http://mysite.com/doodle.png')).pipe(resp)
Also, none of this new functionality conflicts with requests previous features, it just expands them.
const r = request.defaults({'proxy':'http://localproxy.com'})
http.createServer(function (req, resp) {
if (req.url === '/doodle.png') {
r.get('http://google.com/doodle.png').pipe(resp)
}
})
You can still use intermediate proxies, the requests will still follow HTTP forwards, etc.
Promises & Async/Await
request supports both streaming and callback interfaces natively. If you'd like request to return a Promise instead, you can use an alternative interface wrapper for request. These wrappers can be useful if you prefer to work with Promises, or if you'd like to use async/await in ES2017.
Several alternative interfaces are provided by the request team, including:
request-promise(uses Bluebird Promises)request-promise-native(uses native Promises)request-promise-any(uses any-promise Promises)
Also, util.promisify, which is available from Node.js v8.0 can be used to convert a regular function that takes a callback to return a promise instead.
Forms
request supports application/x-www-form-urlencoded and multipart/form-data form uploads. For multipart/related refer to the multipart API.
application/x-www-form-urlencoded (URL-Encoded Forms)
URL-encoded forms are simple.
request.post('http://service.com/upload', {form:{key:'value'}})
// or
request.post('http://service.com/upload').form({key:'value'})
// or
request.post({url:'http://service.com/upload', form: {key:'value'}}, function(err,httpResponse,body){ /* ... */ })
multipart/form-data (Multipart Form Uploads)
For multipart/form-data we use the form-data library by @felixge. For the most cases, you can pass your upload form data via the formData option.
const formData = {
// Pass a simple key-value pair
my_field: 'my_value',
// Pass data via Buffers
my_buffer: Buffer.from([1, 2, 3]),
// Pass data via Streams
my_file: fs.createReadStream(__dirname + '/unicycle.jpg'),
// Pass multiple values /w an Array
attachments: [
fs.createReadStream(__dirname + '/attachment1.jpg'),
fs.createReadStream(__dirname + '/attachment2.jpg')
],
// Pass optional meta-data with an 'options' object with style: {value: DATA, options: OPTIONS}
// Use case: for some types of streams, you'll need to provide "file"-related information manually.
// See the `form-data` README for more information about options: https://github.com/form-data/form-data
custom_file: {
value: fs.createReadStream('/dev/urandom'),
options: {
filename: 'topsecret.jpg',
contentType: 'image/jpeg'
}
}
};
request.post({url:'http://service.com/upload', formData: formData}, function optionalCallback(err, httpResponse, body) {
if (err) {
return console.error('upload failed:', err);
}
console.log('Upload successful! Server responded with:', body);
});
For advanced cases, you can access the form-data object itself via r.form(). This can be modified until the request is fired on the next cycle of the event-loop. (Note that this calling form() will clear the currently set form data for that request.)
// NOTE: Advanced use-case, for normal use see 'formData' usage above
const r = request.post('http://service.com/upload', function optionalCallback(err, httpResponse, body) {...})
const form = r.form();
form.append('my_field', 'my_value');
form.append('my_buffer', Buffer.from([1, 2, 3]));
form.append('custom_file', fs.createReadStream(__dirname + '/unicycle.jpg'), {filename: 'unicycle.jpg'});
See the form-data README for more information & examples.
multipart/related
Some variations in different HTTP implementations require a newline/CRLF before, after, or both before and after the boundary of a multipart/related request (using the multipart option). This has been observed in the .NET WebAPI version 4.0. You can turn on a boundary preambleCRLF or postamble by passing them as true to your request options.
request({
method: 'PUT',
preambleCRLF: true,
postambleCRLF: true,
uri: 'http://service.com/upload',
multipart: [
{
'content-type': 'application/json',
body: JSON.stringify({foo: 'bar', _attachments: {'message.txt': {follows: true, length: 18, 'content_type': 'text/plain' }}})
},
{ body: 'I am an attachment' },
{ body: fs.createReadStream('image.png') }
],
// alternatively pass an object containing additional options
multipart: {
chunked: false,
data: [
{
'content-type'

