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Python implementation for bank account validation.

Project description

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Bank Account Validator

Python implementation for bank account validation.

Currently, the biggest Brazilian banks are implemented - and so being validated. There is no other countries’ banks implemented, but the code is modular and it can be done easily.

Usage:

from bank_account_validator.core import Bank
bank_class = Bank.get('bank_code', 'country_code')
bank_class(branch='branch', branch_digit='branch_digit',
           account='account', account_digit='account_digit').execute()

Examples:

from bank_account_validator.core import Bank, BrazilianBank

# Account below is correct, so nothing is raised by calling execute()
bank_class = Bank.get('237', 'BR')
bank_class(branch='1769', branch_digit='8', account='200040', account_digit='7').execute()

# Account below has invalid branch so InvalidBranch will be raised
bank_class = BrazilianBank.get('237')
bank_class(branch='1769', branch_digit='0', account='200040', account_digit='7').execute()
# InvalidBranch: Branch "1769-0" is wrong.

# Account below has invalid account so InvalidAccount will be raised
bank_class = BrazilianBank.get('237')
bank_class(branch='1769', branch_digit='8', account='200040', account_digit='0').execute()
# InvalidAccount: Account "0200040-0" is wrong.

# Sometimes there is not an unitary validation for both branch and account
# I mean, the full combination is evaluated at once.
bank_class = BrazilianBank.get('033')
bank_class(branch='2006', branch_digit='', account='01008407', account_digit='1').execute()
# InvalidBranchAndAccountCombination: Combination (branch="2006", account="01008407-1") does not match.

# It also validates wether digits must be supplied or not, as well as branch/account lengths
bank_class = BrazilianBank.get('237')
bank_class(branch='111769', branch_digit='8', account='200040', account_digit='7').execute()
# InvalidBranchlength: For bank code "237", branches length must be 4.

bank_class(branch='1769', branch_digit='8', account='11200040', account_digit='7').execute()
# InvalidAccountlength: For bank code "237", accounts length must be 7.

bank_class(branch='1769', branch_digit='', account='200040', account_digit='7').execute()
# MissingBranchDigit: For bank code "237", branches must have a digit, of length 1.

bank_class(branch='1769', branch_digit='11', account='200040', account_digit='7').execute()
# UnexpectedBranchDigit: For bank code "237", branches must have 1 digits.

bank_class(branch='1769', branch_digit='8', account='200040', account_digit='').execute()
# MissingAccountDigit: For bank code "237", accounts must have a digit, of length 1.

bank_class(branch='1769', branch_digit='8', account='200040', account_digit='11').execute()
# UnexpectedAccountDigit: For bank code "237", accounts must have 1 digits.

Contribute

Did you think in some interesting feature, or have you found a bug? Please let me know!

Of course you can also download the project and send me some pull requests.

You can send your suggestions by opening issues.

You can contact me directly as well. Take a look at my contact information at http://filwaitman.github.io/ (email is preferred rather than mobile phone).

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