trisacrypto / lei

A Go library for working with Legal Entity Identifiers (LEIs) as defined in ISO 17442-1:2020

Legal Entity Identifier Go Library

A Go library for working with Legal Entity Identifiers (LEIs) as defined in ISO 17442-1:2020

This library is a port of the leim Rust library developed by 21 Analytics.

Example

import "github.com/trisacrypto/lei"

func main() {
    // Check that a string is a valid LEI
    err := lei.LEI("2594007XIACKNMUAW223").Check()
    // err == nil

    // Parse invalid LEIs to return error information
    err = lei.LEI("2594007XIACKNMUAW222").Check()
    // errors.Is(err, lei.ErrInvalidChecksum) == true

    err = lei.LEI("25947XCKNMUAW223").Check()
    // errors.Is(err, lei.ErrInvalidLength) == true

    err = lei.LEI("2594007X#ACKNMUAW223").Check()
    // errors.Is(err, lei.ErrInvalidChar) == true

    // Check that a RegistrationAuthority is valid
    err = lei.CheckRA("RA777777")
    // err == nil

    // Lookup an unknown RegistrationAuthority
    err = lei.CheckRA("RA009099")
    // errors.Is(err, lei.ErrUnknownRA) == true
}

Usage

Add the lei dependency to your go.mod:

$ go get github.com/trisacrypto/lei

License

This project is licensed under the MIT license to match the license of the upstream Rust library this package was ported from.