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base on Ruby gem for calculating iban out of account details. # ibanizator [](https://github.com/softwareinmotion/ibanizator/actions/workflows/ruby.yml)
ibanizator calculates the iban for german accounts. The database that is used to convert a bank number to a
BIC is taken from [Deutsche Bundesbank](https://www.bundesbank.de/en/tasks/payment-systems/services/bank-sort-codes/download-bank-sort-codes-626218).
## Installation
Add this line to your application's Gemfile:
```ruby
gem 'ibanizator'
```
## Usage
### Calculate IBAN
To calculate the iban for some german accounts, just use this method:
```ruby
ibanizator = Ibanizator.new
ibanizator.calculate_iban country_code: :de, bank_code: '12345678', account_number: '123456789'
```
In the current version the ibanizator gem only works for german accounts.
### Validate an IBAN
To validate the iban you need to check the length and after this check the checksum. For details please refer to
the documentation online (e.g. [Wikipedia](http://es.wikipedia.org/wiki/IBAN)).
This gem provides a simple validator for several contries. All countries that are listed in the Ibanizator::Iban::LENGTHS hash are supported at the moment.
```ruby
iban = Ibanizator.iban_from_string("DE68 2105 0170 0012 3456 78")
iban.valid? # => true
```
### Information provided by an IBAN
The Ibanizator::Iban class provides some handy utility methods to query
information about an iban.
```ruby
iban = Ibanizator.iban_from_string("DE68 2105 0170 0012 3456 78")
iban.country_code # => :DE
# there is extended data for german ibans
iban.extended_data.bank_code # => "21050170"
iban.extended_data.account_number # => "12345678"
iban.extended_data.bic # => "NOLADE21KIE"
```
### Find bank infos
If you need to get a bank name, bank code or a bic from a german bank and you
have either a BIC or a bank code there is a bank db.
```ruby
# find a bank by BIC
bank_1 = Ibanizator.bank_db.bank_by_bic('MARKDEF1100')
bank_1.name # => 'BBk Berlin'
bank_1.bic # => 'MARKDEF1100'
bank_1.bank_code # => '10000000'
# find a bank by bank_code (de: Bankleitzahl)
bank_2 = Ibanizator.bank_db.bank_by_bank_code('100 000 00')
bank_2.name # => 'BBk Berlin'
bank_2.bic # => 'MARKDEF1100'
bank_2.bank_code # => '10000000'
bank_3 = Ibanizator.bank_db.bank_by_bank_code('10000000')
bank_3.name # => 'BBk Berlin'
bank_3.bic # => 'MARKDEF1100'
bank_3.bank_code # => '10000000'
bank_1 == bank_2 # => true
bank_2 == bank_3 # => true
bank_4 = Ibanizator.bank_db.bank_by_bic('OASPDE6AXXX')
bank_4 == bank_2 # => false
```
## Licence
The code is availiable under the MIT-Licence
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