banking's Introduction

Banking

Banking related library.

Install

go get -u github.com/jacoelho/banking

IBAN

Supports IBAN validation based on swift rules.

Usage

Validation

err := iban.Validate("SOME IBAN")

Replace check digits

result, err := iban.ReplaceChecksum("GB99NWBK60161331926819")
// Output: GB29NWBK60161331926819

Generation

iban, err := iban.Generate("GB")
// Output: GB29NWBK60161331926819

Printing

iban.PaperFormat("GB29NWBK60161331926819"))
// Output: GB29 NWBK 6016 1331 9268 19

BBAN

// Get BBAN from IBAN
result, _ := iban.GetBBAN("GB29NWBK60161331926819")

fmt.Println(result.BBAN, result.BankCode, result.BranchCode, result.AccountNumber)
// Output: NWBK60161331926819 NWBK 601613 31926819

IsSEPA

// IsSEPA returns if an iban country is a SEPA member
result, _ := iban.IsSEPA("GB29NWBK60161331926819")
fmt.Println(result)
// Output: true

ISO-7064

Mod-97-10 implemented.

Generate

cd registry
go install -v ./...
cd ..
./bin/generator  -registry-file ./docs/registry.yml

Roadmap

generator with specific values
country bban verifier

License

MIT License

See LICENSE to see the full text.

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banking's Issues

New registry file found. 2023-07-13

New registry file found.

Fails to validate some DK iban

DK0206715394960066 iban is considered invalid. Error I receive is: incorrect checksum: validation error

package main

import (
	"fmt"
	"log"

	"github.com/jacoelho/banking/iban"
)

func main() {
	err := iban.Validate("DK0206715394960066")
	if err != nil {
		log.Fatal(err)
	} else {
		fmt.Println("valid!")
	}
}

For example:
https://bank.codes/iban/validate/ or https://github.com/jbub/banking considers it valid.

Library version: v1.1.37 (latest as of now)

Bonus: during testing of this lib I found that from 350k unique ibans 3500 were falsely invalid.