# EU-VAT Validation Function

# Introduction

Chargebee validates VAT Number by sending a validation request to VAT Information Exchange System (VIES (opens new window)), a search engine owned by the European Commision.

Note: To carry out EU-VAT validation, organization address must be set in Chargebee.

# Integration

# Inserting Chargebee.js script in your application

Include the following script in your HTML page. You need to do this only once per page

<script src="https://js.chargebee.com/v2/chargebee.js"></script>

chargebee.js script should be loaded through Chargebee server for PCI compliance. DO NOT download and load it via your server.

# Initializing Chargebee instance

Inside your JavaScript code, initialize chargebee once the page is loaded and get 'chargebee instance' object. This object is used to invoke the various functions.

  let cbInstance = Chargebee.init({
      site: "mannar-test",
      publishableKey: 'test_Zxm7GgZmjdHO3tT8icuGaYkYBvH0QNRr4'
  });

  // You can access the above created instance anywhere using the following code
  let cbInstance = Chargebee.getInstance();

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# Initialize Chargebee.js functions

Use the load method to load and initialize the functions module. Then, for instance, use the estimates.createSubscriptionEstimate to invoke the create subscription estimate function.

  let cbInstance = Chargebee.getInstance();
  charegbeeInstance.load('functions').then(() => {
      // your code here
  });

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# Using the function

# Sample code

  let cbInstance = Chargebee.getInstance();
  charegbeeInstance.load('functions').then(() => {
    const payload = {...}
    cbInstance.vat.validateVat(payload).then(data => {
      // Your code here
    }).catch(err => {
      // Your code here
    })
  });

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# Parameters

country

String

2-letter ISO 3166 alpha-2 country code

vat_number