Node TwoCaptcha

Node TwoCaptcha is a Javascript package for 2Captcha - 2Captcha.com.

Installation

Just run:

npm install @infosimples/node_two_captcha

JSDoc documentation can be found at https://infosimples.github.io/node_two_captcha/

Usage

1. Create a client

// Import module
const Client = require('@infosimples/node_two_captcha');

// Declare your client
client = new Client('your_2captcha_key', {
                    timeout: 60000,
                    polling: 5000,
                    throwErrors: false});

The first parameter of the TwoCaptchaClient constructor is your API key from 2Captcha. The other parameters are:

• timeout: Time (milliseconds) to wait before giving up on waiting for a captcha solution.
• polling: Time (milliseconds) between polls to 2captcha server. 2Captcha documentation suggests this time to be at least 5 seconds, or you might get blocked.
• throwErrors: Whether the client should throw errors or just log the errors.

2. Solve a CAPTCHA

Image CAPTCHA

client.decode({
  url: 'http://bit.ly/1xXZcKo'
}).then(function(response) {
  console.log(response.text);
});

> infosimples

decode is an async function. Valid parameters for decode function are:

• base64: An already base64-coded image.
• buffer: A buffer object of a binary image.
• path: The path for a system-stored image.
• url: Url for a web-located image.

The returned value will be a Captcha object. Its properties are:

• apiResponse: Complete API response body for captcha request.
• id: Captcha ID, as provided from 2Captcha.
• text: Text from captcha.
• coordinates(): If the captcha sent was a image, this function returns the coordinates (X, Y) clicked.
• indexes(): If the captcha sent was tile-like, this function returns the indexes of the clicks on an array.

reCAPTCHA v2

client.decodeRecaptchaV2({
  googlekey: 'the_key_extracted_from_the_page',
  pageurl: 'https://www.google.com/recaptcha/api2/demo'
}).then(function(response) {
  console.log(response.text);
});

> jTfh3o9uqafa-u5RtYofHHo2uDk0T78f78HvttFGYft8pG3wuhd-UHAIy271bQXPeUNRm...

decodeRecaptchaV2 is an async function. The parameters for decodeRecaptchaV2 function are:

• googlekey: The Google key for the reCAPTCHA.
• pageurl: The URL of the page with the reCAPTCHA challenge.
• invisible: optional (Boolean) switch for invisible reCAPTCHA, default is false
• enterprise: optional (Boolean) switch for reCAPTCHA Enterprise, default is false

reCAPTCHA v3

client.decodeRecaptchaV3({
  googlekey: 'the_key_extracted_from_the_page',
  pageurl: 'https://www.site.with.recaptcha.v3/example',
  action: 'test'
}).then(function(response) {
  console.log(response.text);
});

> jTfh3o9uqafa-u5RtYofHHo2uDk0T78f78HvttFGYft8pG3wuhd-UHAIy271bQXPeUNRm...

decodeRecaptchaV3 is an async function. The parameters for decodeRecaptchaV3 function are:

• googlekey: The Google key for the reCAPTCHA.
• pageurl: The URL of the page with the reCAPTCHA challenge.
• action: the action name used by the CAPTCHA.
• enterprise: optional (Boolean) switch for reCAPTCHA Enterprise, default is false

3. Retrieve a previously solved captcha

// 61086191138 is the ID of a previously sent CAPTCHA
client.captcha('61086191138').then(function(response){
  console.log(response);
});

> Captcha {
   _id: '61086191138',
   _apiResponse: 'OK|infosimples',
   _text: 'infosimples' }

4. Report an incorrectly solved CATPCHA for a refund

client.report('61086191138').then(function(response) {
  console.log(response);
});

// Returns whether the report was received or not
> true

Or send a correct report by setting bad parameter to false. Default is true.

client.report('61086191138', false);

Warning: abusing on this method may get you banned.

5. Get usage statistics for a specific date

let date = new Date('2019-02-04');
client.stats(date).then(function(response) {
  console.log(response);
});

// Returns an XML string with your usage statistics
> <?xml version="1.0"?><response><stats dateint="1549227600" date="2019-02-04" hour="00"><volume>0</volume><money>0</money></stats><stats dateint="1549231200" date="2019-02-04" hour="01"><volume>0</volume><money>0</money></stats>...

6. Get your 2Captcha account balance

client.balance().then(function(response) {
  console.log(response);
});

// Returns a float with your account balance in USD
> 3.75371