Mercari JP Proxy

To quickly scrape a large number of sites using Node.js, you can leverage asynchronous programming and utilize libraries like axios for making HTTP requests and cheerio for parsing HTML. Additionally, you may consider using the p-queue library to manage the concurrency and control the rate of requests. Here's a basic example to get you started

Install Required Packages:

npm install axios cheerio p-queue

Create a Scraper Script:

const axios = require('axios');
const cheerio = require('cheerio');
const PQueue = require('p-queue');

// List of sites to scrape
const sites = [
  'https://example1.com',
  'https://example2.com',
  // Add more URLs as needed
];

// Set the concurrency level (adjust as needed)
const concurrency = 5;

// Initialize a queue with concurrency control
const queue = new PQueue({ concurrency });

// Function to scrape a single site
async function scrapeSite(url) {
  try {
    const response = await axios.get(url);
    const $ = cheerio.load(response.data);

    // Use Cheerio to parse and extract data
    const title = $('title').text();
    console.log(`Scraped ${url} - Title: ${title}`);
  } catch (error) {
    console.error(`Error scraping ${url}: ${error.message}`);
  }
}

// Enqueue scraping tasks for each site
sites.forEach((site) => {
  queue.add(() => scrapeSite(site));
});

// Wait for all tasks to complete
queue.onIdle().then(() => {
  console.log('All scraping tasks completed.');
});

This example uses axios for making HTTP requests, cheerio for HTML parsing, and p-queue for controlling concurrency.

Run the Script:

node your_scraper_script.js

Adjust the sites array with the URLs you want to scrape.

This example uses a simple queue system to control the number of concurrent requests, preventing potential issues with rate limiting or overwhelming the target websites. However, be mindful of the websites' terms of service and robots.txt rules to avoid scraping restrictions.

To change the proxy settings on an Android device, follow these steps:

1. Open the "Settings" app on your Android device.

2. Scroll down and tap on "Network & Internet" or "Connections," depending on your device's Android version and manufacturer.

3. Tap on "Wi-Fi" if you want to change the proxy settings for Wi-Fi connections, or "Mobile networks" if you want to change the proxy settings for cellular data.

4. If you're changing the settings for Wi-Fi, tap on the Wi-Fi network you're currently connected to. If you're changing the settings for mobile networks, tap on "Advanced options" or "Access Point Names (APN)."

5. Look for the "Proxy" or "Access Point" section. Tap on it to access the proxy settings.

6. You will see options to enter the proxy server's IP address and port number. Enter the required information for the proxy server you want to use. Some proxy servers may also require you to enter a username and password.

7. Once you've entered the proxy server details, save your changes by tapping on the "Save" or "Apply" button.

In data centers, proxies are used to provide IP to virtual servers. After all, one server there can be used by a dozen users at the same time. And each needs to be allocated its own IP and port. All this is done through proxies.

To connect a proxy for Instagram, you need to use third-party services. With their help, you can assign a separate proxy for each account, through which the profile will work. An example of a service is Instaplus. You can also use built-in proxies on the site.

It means that the address of such a server changes periodically. This is useful if the user wants to be as anonymous as possible when surfing the web.