A golang implementation to marshal and unmarshal iso8583 message.
Length encode and MTI encode types:
- bcd - BCD encoding of field length (only for Ll* and Lll* fields)
- ascii - ASCII encoding of field length (only for Ll* and Lll* fields)
Encode types:
- bcd - BCD encoding
- rbcd - BCD encoding with "right-aligned" value with odd length (for ex. "643" as [6 67] == "0643"), only for Numeric, Llnumeric and Lllnumeric fields
- ascii - ASCII encoding
package main
import (
"fmt"
"github.com/ideazxy/iso8583"
)
type Data struct {
No *iso8583.Numeric `field:"3" length:"6" encode:"bcd"` // bcd value encoding
Oper *iso8583.Numeric `field:"26" length:"2" encode:"ascii"` // ascii value encoding
Ret *iso8583.Alphanumeric `field:"39" length:"2"`
Sn *iso8583.Llvar `field:"45" length:"23" encode:"bcd,ascii"` // bcd length encoding, ascii value encoding
Info *iso8583.Lllvar `field:"46" length:"42" encode:"bcd,ascii"`
Mac *iso8583.Binary `field:"64" length:"8"`
}
func main() {
data := &Data{
No: iso8583.NewNumeric("001111"),
Oper: iso8583.NewNumeric("22"),
Ret: iso8583.NewAlphanumeric("ok"),
Sn: iso8583.NewLlvar([]byte("abc001")),
Info: iso8583.NewLllvar([]byte("你好 golang!")),
Mac: iso8583.NewBinary([]byte("a1s2d3f4")),
}
msg := iso8583.NewMessage("0800", data)
msg.MtiEncode = iso8583.BCD
b, err := msg.Bytes()
if err != nil {
fmt.Println(err.Error())
}
fmt.Printf("% x\n", b)
}Then you will get:
08 00 20 00 00 40 02 0c 00 01 00 11 11 32 32 6f 6b 06 61 62 63 30 30 31 00 14 e4 bd a0 e5 a5 bd 20 67 6f 6c 61 6e 67 21 61 31 73 32 64 33 66 34
Additional example you can see in iso8583_test.go