NZ Bank Validator

A small, zero dependency Javascript NZ bank account validation library that runs everywhere.

It is based on the 2020 documentation and the PaymentsNZ Bank Branch Register which includes a number of branches not included in the IRD's specs. These have no validation applied other than the checking the branch number is within the published range.

Forked from Josh Hollinshead's nz-bank-account-validator. The project was converted to Typescript and updated to the 2020 spec from the 2016 spec without any changes to the API.

Getting Started

Using npm:

$ npm i --save nz-bank-validator

Using yarn:

$ yarn add nz-bank-validator

Installation

In Node.js (require):

const bankValidator = require("nz-bank-validator");

bankValidator.validate("01-902-0068389-00");
// => true

ES6 Modules:

import bankValidator from "nz-bank-validator";

bankValidator.validate("01-902-0068389-00");
// => true

Usage

const bankValidator = require("nz-bank-validator");

bankValidator.getId("01-902-0068389-00"); // '01'
bankValidator.getBranch("01-902-0068389-00"); // '02'
bankValidator.getBase("01-902-0068389-00"); // '0068389'
bankValidator.getSuffix("01-902-0068389-00"); // '00'

bankValidator.getPartsObject("01-902-0068389-00"); // { id: '01', branch: '902', base: '0068389', suffix: '00' }

bankValidator.validate("01-902-0068389-00"); // true
bankValidator.validate({
  id: "01",
  branch: "902",
  base: "0068389",
  suffix: "00",
}); // true

bankValidator.validate("01-902-XXXXX-00"); // false
bankValidator.validate("01-902--00"); // false
bankValidator.validate("01-902-123456-00"); // false

Running the tests

To run the tests locally:

npm i
npm run tests

License

This project is licensed under the MIT License - see the LICENSE.md file for details

References

• IRD - Validating Bank Account Numbers