Open terminal/cmd as an administrator and paste the command there. Modify the command with credentials provided for your user:
Why Do You Need a Residential Proxy for Travel Websites...
So first, why do we recommend Node.js for web scraping? To answer that, let us talk about what exactly is Node.js and what are its advantages over other programming languages.
Node.js is an open-source, JavaScript runtime environment that can be used outside a web browser. Basically, the creators of Node.js took JavaScript which is mostly restricted to a web browser and allow it to run on your personal computer. With the help of Google chrome’s v8 engine, we are now able to run Javascript on our local machine which enables us to access files, listen to network traffic, and even listen to HTTP requests your machine gets and send back a file. Database can also be accessed directly much like anything you can do with PHP or Ruby on Rails.
Processing speed – Node.js is very fast, mainly thanks to Chrome’s v8 engine. Instead of using an interpreter, it uses an engine to compile JavaScript into machine code. Performance is further improved by handling concurrent requests using the event loop only in a single thread. Because it is modeled for non-blocking I/O, it reduces CPU usage when processing multiple requests at the same time.
Lightweight and highly scalable – It can handle growing workloads and perform well, making it affordable for most developers. Node.js makes it easy to update and maintain applications by decoupling each part as you add new architectures or even fix existing ones, without changing or customizing other parts of the project or application. On the development side, it is also possible to reuse and share code through modules like individual code blocks.
Open terminal/cmd as an administrator and paste the command there. Modify the command with credentials provided for your user:
npm config set proxy http://"username:password"@your.proxy.ip:9000
npm config set https-proxy http://"username:password"@your.proxy.ip:9000
This method can be used if you want to specify their proxy server address and port number, and type their username and password.
Node v8 proxy using HTTP tunnel:
const http = require('http')
const https = require('https')
const username = 'username'
const password = 'password'
const auth = 'Basic ' + Buffer.from(username + ':' + password).toString('base64')
http.request({
host: '255.255.255.255', // IP address of proxy server
port: 9000, // port of proxy server
method: 'CONNECT',
path: 'google.com:443', // some destination, add 443 port for https!
headers: {
'Proxy-Authorization': auth
},
}).on('connect', (res, socket) => {
if (res.statusCode === 200) { // connected to proxy server
https.get({
host: 'www.google.com',
socket: socket, // using a tunnel
agent: false, // cannot use a default agent
path: '/your/url' // specify path to get from server
}, (res) => {
let chunks = []
res.on('data', chunk => chunks.push(chunk))
res.on('end', () => {
console.log('DONE', Buffer.concat(chunks).toString('utf8'))
})
})
}
}).on('error', (err) => {
console.error('error', err)
}).end()
Node v14 proxy example:
const http = require('http');
const https = require('https');
const username = 'username';
const password = 'password';
const auth = 'Basic ' + Buffer.from(username + ':' + password).toString('base64');
http.request({
host: '255.255.255.255', // IP address of proxy server
port: 9000, // port of proxy server
method: 'CONNECT',
path: 'google.com:443', // some destination, add 443 port for https!
headers: {
'Proxy-Authorization': auth
},
}).on('connect', (res, socket) => {
if (res.statusCode === 200) { // connected to proxy server
const agent = new https.Agent({ socket });
https.get({
host: 'www.google.com',
path: '/',
agent, // cannot use a default agent
}, (res) => {
let chunks = []
res.on('data', chunk => chunks.push(chunk))
res.on('end', () => {
console.log('DONE', Buffer.concat(chunks).toString('utf8'))
})
})
}
}).on('error', (err) => {
console.error('error', err)
}).end();
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