This is a library to parse MT940 account statements. It was ported from Ruby and is based on Thies C. Arntzen's mt940 library. MT940 is a standard structured customer statement message format developed by SWIFT. It is an end-of-day statement file which details all entries booked to a bank account.

Include a dependency in your mix.exs:

deps: [{:mt940, "~> 0.3.2"}, …]

use MT940 and parse! the raw input:

defmodule BankAccount do
  use MT940

  def balance(raw) when is_binary(raw) do
    %{amount: amount, currency: currency} = raw
    |> parse!
    |> Enum.at(-1)
    |> MT940.CustomerStatementMessage.closing_balance
    "#{amount} #{currency}"
  end

  def transactions(raw) when is_binary(raw) do
    raw
    |> parse!
    |> Enum.flat_map(&MT940.CustomerStatementMessage.statement_lines/1)
  end
end

If you want to have a more detailed, low-level list of MT940 commands, use the MT940.Parser.parse! command.

Find the specification in the MT940 Format Overview or in the SWIFT MT 940 Customer Statement Message Report.

API documentation is available at https://hexdocs.pm/mt940.

Copyright (c) 2015 Florian J. Breunig

Licensed under MIT, see LICENSE file.