:credit_card: CardBinEX

Elixir module to discover the CreditCard brand based in the first digits.

Valid CreditCard brands

brand	alias
Visa	`visa`
Elo	`elo`
JBC	`jbc`
Diners	`diners`
Discover	`discover`
MasterCard	`master`
Hipercard	`hipercard`
American Express	`amex`

Install

def deps do
  [
    {:card_bin_ex, "~> 1.0"}
  ]
end

Usage

Get the creditcard brand base in the first digits.

iex> CardBinEx.brand_from_number("4716892")
{:ok, "visa"}

iex> CardBinEx.brand_from_number("9716892")
{:error, :card_brand, "9716892"}

Get the creditcard brand base in the first digits and return only the brand.

It will raise CardBinEx.Error if is an invalid bin.

iex> CardBinEx.brand_from_number!("4716892")
"visa"

iex> try do
...>   CardBinEx.brand_from_number!("9716892")
...> rescue
...>   e in CardBinEx.Error -> IO.puts(e.message)
..> end