Ruby
Ruby helper to connect your backend with VatZen.
VatZen is Deprecated since January 2022 and API server will be shut down soon!

Installation

Gem is published in RubyGems register and can be installed by following commands:
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gem install vatzen
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or
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bundle add vatzen
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Documentation

For more extensive documentation, please visit our official docs at https://documentation.vatzen.com

General

Once you obtained your API key from VatZen Dashboard, you can start using the module. To get started quickly, simply import the module and pass the API Key. After initialization, you can already start calling endpoints:
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require 'vatzen'
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vatzen = Vatzen.new('your api key')
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rates = vatzen.rates.get_rates(member_state: true)
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Rates

Before using the endpoint, you can familiarize yourself with our Rates endpoint documentation.
All the rates function are available inside VatZen object inside rates parameter. For example vatzen.rates.get_rates.

All Rates

In order to obtain all the rates, you can use rates.get_rates() function, which accepts optional options object with the following (also optional) keys:
key
type
description
limit
number
Limit for pagination
page
number
Page number, starting from 1
member_state
boolean
Response will be filtered by member states only
getAll usage example:
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vatzen.rates.get_rates(member_state: true)
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Rate by Country Code

If you want to obtain the rate by known ISO Country Code, you can use rates.get_rate_by_country_code function, which accepts country code string as a parameter. For example:
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vatzen.rates.get_rate_by_country_code('FR')
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Find Rate

You can use VatZen to lookup country rate using different parameters, such as country name, country code or ip address. In order to do that, you can use rates.find function, which accepts options object with the following properties:
key
type
description
country_code
string
2 characters ISO country code
country_name
string
Country name, for example Germany
ip_address
string
IP Address of your client which will be used to identify the country
use_client_ip
boolean
If set to true, VatZen will extract ip address from the request
Example for using this function:
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vatzen.rates.get_rate(country_name: 'Germany')
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VAT Number Validation

Before using the endpoint, you can familiarize yourself with our Validations endpoint documentation.
All the rates function are available inside VatZen object inside validation parameter. For example vatzen.validations.validate.

Validate VAT Number

VAT number validation is implemented inside validate function, which accepts only 1 parameter - vat number string. As the response, it returns the complete Validations entity.
Example:
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vatzen.validation.validate('LU123455');
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Create Validation

If you want to validate VAT number and store the validation, you can use create_validation function, which accepts VAT number as a parameter and returns VAT Entity.
Example:
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vatzen.validation.create_validation('LU123455');
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Get validation by id

Returns stored validation object by id. Implemented in get_validation_by_id function.
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vatzen.validation.get_validation_by_id('dgy13wjbhbj342');
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Get all validation

If you want to fetch all validations, you can use get_validations function, which accepts optional options object with the following optional parameters:
key
type
description
limit
number
Limit for pagination
page
number
Page number, starting from 1
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vatzen.validation.get_validations(page: 2)
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Prices Calculations

VAT prices calculations are implemented inside prices module in vatzen client, which you can access via vatzen.prices. Before using this endpoint, make sure to read our Official Prices Documentation.

Calculate Price

Implemented via vatzen.prices.calculate function. Using this function, you can perform price calculation based on different parameters. If accepts options object, with 1 required fields: amount, and various option fields, which will be used to identify VAT rate.
key
type
description
amount
number
Amount for VAT calculation in cents
vat_included
boolean
Identifies if VAT already included in amount
category
VatCategory
VAT Category used for price calculations
country_code
string
2 characters ISO country code
country_name
string
Country name, for example Germany
ip_address
string
IP Address of your client which will be used to identify the country
use_client_ip
boolean
If set to true, VatZen will extract ip address from the request
Example:
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calculate_price_for_germany = vatzen.prices.calculate(
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amount: 10000,
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country_code: 'DE',
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category: 'audiobook',
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)
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print '100 EUR with VAT for AudioBooks in Germany: ' + (calculate_price_for_germany['amount']['total_incl_vat'] / 100).to_s
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Create Price Calculation

If you want to calculate price and store the calculation, you can use create_price_calculation function, which accepts the same parameters as calculate function.
Example:
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created_price_for_spain = vatzen.prices.create_price_calculation(
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amount: 10000,
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country_code: 'ES',
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)
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print 'Created price ID: ' + created_price_for_spain['id']
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Get Price Calculation by id

Returns stored price calculation object by id. Implemented in get_calculation_by_id function.
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vatzen.prices.get_calculation_by_id(createdPriceForSpain['id'])
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Get all price calculations

If you want to fetch all calculations you performed, you can use get_prices function, which accepts optional options object with the following optional parameters:
key
type
description
limit
number
Limit for pagination
page
number
Page number, starting from 1