fast-lei

luhn

Javascript tool to validate or generate control key for Legal Entity Identifier

Usage

In node.js

var LEI = require('fast-lei');

LEI.isValid('969500T3MBS4SQAMHJ45'); // false
LEI.isValid('724500VKKSH9QOLTFR81'); // true

LEI.generate('969500KSV493XWY0PS'); // 969500KSV493XWY0PS33

LEI.getMod97('724500884QS64MG71N'); // 76

API

isValid

Check input value, must be not null, not undefined and of type string.

The stringified value must respect LEI format (/^[0-9A-Z]{18}[0-9]{2}$/).

Check the value againt modulo 97 and must be equals to 1.

Returns boolean.

generate

Check input value, must be not null, not undefined and of type string.

The stringified value must respect LEI forma0 without ending control digits (/^[0-9A-Z]{18}$/).

Returns input value with check digits appended at the end.

getMod97

Compute modulo 97 remainder.

Fast entry: you must ensure that given rawValue is not null or empty and respect format /^[0-9A-Z]{1,}$/.

Note: Remainder cannot be directly used as check digits. To generate check digits, please refer to method generate.