How can I effectively use a proxy server in Selenium with Python for web scraping?

279    Asked by david_2585 in QA Testing , Asked on May 24, 2024

 I am currently working on a web scraping project using Selenium with Python. My task is to collect data from a website that has a strict anti-scraping measure in place. How can I effectively use a proxy server within my Selenium script to avoid getting blocked while fetching the required data? 

Answered by David

 In the context of selenium, you can effectively use a proxy server In selenium with python fir web scraping while avoiding blocks by using the “selenium wire” library. Here are the steps given:-

Install required libraries

First, you would need to install the “selenium wire” along with Selenium.

Import libraries

You can import the required libraries in your python script.

Configure proxy settings

You can set up your proxy server details and then configure Selenium to use the proxy.

Navigate and scrape

You can use the selenium for navigating to the target website and performing scraping operations.

Handling requests with proxy

You can use the “selenium wire” for intercepting requests and then modify headers if necessary.

Here is the example given below by using selenium with a proxy in python:-

From selenium import webdriver
From selenium.webdriver.common.proxy import Proxy, ProxyType
# Specify proxy details
Proxy_host = “your_proxy_host”
Proxy_port = “your_proxy_port”
Proxy_username = “your_proxy_username” # If authentication is required
Proxy_password = “your_proxy_password”
# Create a Proxy object and set proxy type and address
Proxy = Proxy()
Proxy.proxy_type = ProxyType.MANUAL
Proxy.http_proxy = f”{proxy_host}:{proxy_port}”
Proxy.ssl_proxy = f”{proxy_host}:{proxy_port}”
# Add proxy authentication if required
If proxy_username and proxy_password:
    Proxy.proxy_type = ProxyType.MANUAL
    Proxy.http_proxy = f”{proxy_username}:{proxy_password}@{proxy_host}:{proxy_port}”
    Proxy.ssl_proxy = f”{proxy_username}:{proxy_password}@{proxy_host}:{proxy_port}”
# Create WebDriver with proxy settings
Chrome_options = webdriver.ChromeOptions()
Chrome_options.add_argument(“—ignore-certificate-errors”) # Ignore SSL certificate errors if needed
Chrome_options.add_argument(“—proxy-server=http://your_proxy_host:your_proxy_port”) # Set proxy server
# Initialize WebDriver with proxy settings
Driver = webdriver.Chrome(options=chrome_options)
# Example usage: navigate to a website and perform actions
Driver.get(https://www.example.com)
# Perform scraping or other actions here
Here is how you can use the selenium with a proxy in java programming language:-
Import org.openqa.selenium.WebDriver;
Import org.openqa.selenium.chrome.ChromeDriver;
Import org.openqa.selenium.chrome.ChromeOptions;
Import org.openqa.selenium.Proxy;
Public class SeleniumWithProxy {
    Public static void main(String[] args) {
        // Specify proxy details
        String proxyHost = “your_proxy_host”;
        Int proxyPort = your_proxy_port;
        String proxyUsername = “your_proxy_username”; // If authentication is required
        String proxyPassword = “your_proxy_password”;
        // Create Proxy object and set proxy type and address
        Proxy proxy = new Proxy();
        Proxy.setProxyType(Proxy.ProxyType.MANUAL);
        String proxyAddress = proxyHost + “:” + proxyPort;
        Proxy.setHttpProxy(proxyAddress);
        Proxy.setSslProxy(proxyAddress);
        // Add proxy authentication if required
        If (proxyUsername != null && !proxyUsername.isEmpty() && proxyPassword != null && !proxyPassword.isEmpty()) {
            String proxyAuth = proxyUsername + “:” + proxyPassword;
            Proxy.setHttpProxy(proxyAuth + “@” + proxyAddress);
            Proxy.setSslProxy(proxyAuth + “@” + proxyAddress);
        }
        // Configure WebDriver with proxy settings
        ChromeOptions options = new ChromeOptions();
        Options.setProxy(proxy);
        Options.addArguments(“—ignore-certificate-errors”); // Ignore SSL certificate errors if needed
        // Set Chrome driver path
        System.setProperty(“webdriver.chrome.driver”, “path_to_chromedriver”);
        // Initialize WebDriver with proxy settings
        WebDriver driver = new ChromeDriver(options);
        // Example usage: navigate to a website and perform actions
        Driver.get(https://www.example.com);
        // Perform scraping or other actions here
        // Close the WebDriver session
        Driver.quit();
    }
}

Here is how you can selenium with a proxy in HTML coding:-




    <meta</span> charset=”UTF-8”>

    <meta</span> name=”viewport” content=”width=device-width, initial-scale=1.0”>

    Selenium with Proxy



    [removed]

        Function startSeleniumWithProxy() {
            // Specify proxy details
            Var proxyHost = “your_proxy_host”;
            Var proxyPort = “your_proxy_port”;
            Var proxyUsername = “your_proxy_username”; // If authentication is required
            Var proxyPassword = “your_proxy_password”;
            // Create proxy capabilities
            Var proxyCapabilities = {
                Proxy: {
                    proxyType: “manual”,
                    httpProxy: proxyHost + “:” + proxyPort,
                    sslProxy: proxyHost + “:” + proxyPort
                }
            };
            // Add proxy authentication if required
            If (proxyUsername && proxyPassword) {
                proxyCapabilities.proxy.proxyAutoconfigUrl = http:// + proxyUsername + “:” + proxyPassword + “@” + proxyHost + “:” + proxyPort;
            }
            // Start Selenium WebDriver with proxy
            Var driver = new webdriver.Builder()
                .withCapabilities(proxyCapabilities)
                .forBrowser(‘chrome’)
                .build();
            // Example usage: navigate to a website and perform actions
            Driver.get(https://www.example.com);
            // Perform scraping or other actions here
            // Quit the WebDriver session
            Driver.quit();
        }

    [removed]

   





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