RedTape
Finanzamt-compliant VAT ID validation
RedTape provides a Ruby wrapper for extended EU VAT ID validation using the German Bundeszentralamt für Steuern REST API
Installation
In your Gemfile:
gem 'red_tape'Usage
# quick syntax
RedTape.valid?('DE123456789', 'ATU33864707') => true
# if you want detailed error messages from the Bundeszentralamt
validator = RedTape.validator('DE123456789', 'FOO', company_name: 'Red Bull GmbH', city: 'Fuschl am See')
validator.valid?
=> false
validator.status
=> :own_vat_id_invalid