scala-iso-8583

A simple implementation of ISO 8583 messages for Scala.

Prerequisites

• Scala :)
• SBT

Usage

First of all, you need to provide a definition of your message. A definition is a seq of tuples (Int, BitOps) where BitOps is a type for parser and reducer functions.

val isoDef = 0 ~> 4 ::
               bitMap ::
               3 ~> 6 ::
               4 ~> 12 ::
               7 ~> 10 ::
               11 ~> 6 ::
               44 ~> ll ::
               105 ~> lll ::
               EndD

The example above we define bit 3 has a fixed length of 6 bytes, bit 4 has a fixed length of 12 and so on. Bits 44 and 105 has variable length which means your length is prefixed with data where ll is prefix of 2 bytes and lll is prefix of 3 bytes.

To parse a message you use

val Success(isoMsg) = isoDef.parse(msg)

And to reduce you use

val isoMsg = ISOMsg (
        0 -> "0200",
        3 -> "000001",
        4 -> "000000000100",
        7 -> "1012194700",
        44 -> "123456",
        105 -> "ABC"
)

val Success(buf) = isoDef.reduce(isoMsg)