CAPSOLVER
Blog
How to solve reCaptcha v2 with Node.JS

How to solve reCaptcha v2 with Node.JS

Logo of Capsolver

Rajinder Singh

Deep Learning Researcher

27-Sep-2023

Solving reCaptcha v2, reCaptcha v2 with Node.JS, reCaptcha v2 Node.JS solver

⚙️ Prerequisites

  • Proxy (Optional)
  • Node.JS installed
  • Capsolver API key

🤖 Step 1: Install Necessary Packages

Execute the following commands to install the required packages:

npm install axios

👨‍💻 Node.JS Code for solve reCaptcha v2 without proxy

Here's a Node.JS sample script to accomplish the task:

const axios = require('axios');

const PAGE_URL = ""; // Replace with your Website
const SITE_KEY = ""; // Replace with your Website
const CLIENT_KEY = "";  // Replace with your CAPSOLVER API Key

async function createTask(payload) {
  try {
    const res = await axios.post('https://api.capsolver.com/createTask', {
      clientKey: CLIENT_KEY,
      task: payload
    });
    return res.data;
  } catch (error) {
    console.error(error);
  }
}
async function getTaskResult(taskId) {
    try {
        success = false;
        while(success == false){

            await sleep(1000);
        console.log("Getting task result for task ID: " + taskId);
      const res = await axios.post('https://api.capsolver.com/getTaskResult', {
        clientKey: CLIENT_KEY,
        taskId: taskId
      });
      if( res.data.status == "ready") {
        success = true;
        console.log(res.data)
        return res.data;
      }
    }
  
    } catch (error) {
      console.error(error);
      return null;
    }
  }
  

async function solveReCaptcha(pageURL, sitekey) {
  const taskPayload = {
    type: "ReCaptchaV2TaskProxyless",
    websiteURL: pageURL,
    websiteKey: sitekey,
  };
  const taskData = await createTask(taskPayload);
  return await getTaskResult(taskData.taskId);
}
function sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}
async function main() {
  try {
   
      const response = await solveReCaptcha(PAGE_URL, SITE_KEY );
      console.log(`Received token: ${response.solution.gReCaptcharesponse}`);
        
    }
catch (error) {
    console.error(`Error: ${error}`);
  }

}
main();

👨‍💻 Node.JS Code for solve reCaptcha v2 with proxy

Here's a Node.JS sample script to accomplish the task:

const axios = require('axios');

const PAGE_URL = ""; // Replace with your Website
const SITE_KEY = ""; // Replace with your Website
const CLIENT_KEY = "";  // Replace with your CAPSOLVER API Key
const PROXY =  "https://username:password@host:port";

async function createTask(payload) {
  try {
    const res = await axios.post('https://api.capsolver.com/createTask', {
      clientKey: CLIENT_KEY,
      task: payload
    });
    return res.data;
  } catch (error) {
    console.error(error);
  }
}
async function getTaskResult(taskId) {
    try {
        success = false;
        while(success == false){

            await sleep(1000);
        console.log("Getting task result for task ID: " + taskId);
      const res = await axios.post('https://api.capsolver.com/getTaskResult', {
        clientKey: CLIENT_KEY,
        taskId: taskId
      });
      if( res.data.status == "ready") {
        success = true;
        console.log(res.data)
        return res.data;
      }
    }
  
    } catch (error) {
      console.error(error);
      return null;
    }
  }
  

async function solveReCaptcha(pageURL, sitekey) {
  const taskPayload = {
    type: "ReCaptchaV2Task",
    websiteURL: pageURL,
    websiteKey: sitekey,
    proxy: PROXY
  };
  const taskData = await createTask(taskPayload);
  return await getTaskResult(taskData.taskId);
}
function sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}
async function main() {
  try {
   
      const response = await solveReCaptcha(PAGE_URL, SITE_KEY );
      console.log(`Received token: ${response.solution.gRecaptchaResponse}`);
        
    }
catch (error) {
    console.error(`Error: ${error}`);
  }

}
main();

⚠️ Change these variables

  • PROXY: Change to your proxy, only if you use ReCaptchaV2Task.
  • CLIENT_KEY: Obtain your API key from the Capsolver Dashboard.
  • PAGE_URL: Replace with the URL of the website for which you wish to solve hCaptcha
  • SITE_KEY: Replace with the site key of the page with hcaptcha

👀 More information

More

How to solve reCaptcha v2 with Rust
How to solve reCaptcha v2 with Rust

Learn how to solve reCaptcha v2 using Rust and the Capsolver API. This guide covers both proxy and proxyless methods, providing step-by-step instructions and code examples for integrating reCaptcha v2 solving into your Rust applications.

reCAPTCHA
Logo of Capsolver

Lucas Mitchell

23-Sep-2024

Guide to Solving reCAPTCHA v3 with High Scores in Python
Guide to Solving reCAPTCHA v3 with High Scores in Python

This guide will walk you through effective strategies and Python techniques to solve reCAPTCHA v3 with high scores, ensuring your automation tasks run smoothly.

reCAPTCHA
Logo of Capsolver

Lucas Mitchell

18-Sep-2024

Best Chrome Captcha Extensions for Solving reCAPTCHA in 2024
Best Chrome Captcha Extensions for Solving reCAPTCHA in 2024

CAPTCHA, especially reCAPTCHA, can hinder automation. CapSolver’s Chrome extension provides an AI-driven, seamless solution for 2024.

reCAPTCHA
Logo of Capsolver

Ethan Collins

12-Sep-2024

How to Handle Multiple reCAPTCHA Challenges Concurrently
How to Handle Multiple reCAPTCHA Challenges Concurrently

Learn how to handle multiple reCAPTCHA challenges concurrently in web scraping projects. This blog explains different types of reCAPTCHA, how to identify them using tools like Capsolver, and automating CAPTCHA-solving using Python and threading.

reCAPTCHA
Logo of Capsolver

Lucas Mitchell

10-Sep-2024

How to Integrate reCAPTCHA v2 Solutions in Python for Data Extraction
How to Integrate reCAPTCHA v2 Solutions in Python for Data Extraction

Learn how to integrate reCAPTCHA v2 solutions into Python for seamless data extraction. Explore reCAPTCHA versions, understand data extraction, and follow a simple example using Capsolver to automate solving reCAPTCHA v2 challenges.

reCAPTCHA
Logo of Capsolver

Lucas Mitchell

10-Sep-2024

Solving reCAPTCHA v3 Enterprise Challenges with Python and Selenium
Solving reCAPTCHA v3 Enterprise Challenges with Python and Selenium

How to solve reCAPTCHA v3 Enterprise challenges using Python and Selenium, the popular browser automation tool.

reCAPTCHA
Logo of Capsolver

Lucas Mitchell

06-Sep-2024