Encode and decode

iso8583sim.wire.codec

Functions

`encode_message()`

def encode_message(
    message: ISO8583Message,
    fmt: WireFormat | None = None,
    builder: ISO8583Builder | None = None,
) -> bytes

Encode a message as bytes in the given wire format. The message is validated and normalized exactly as ISO8583Builder.build() does, so encoding with WireFormat.ascii_hex() gives the same characters as build(). Parameters

ISO8583Message

required

Message to encode

WireFormat | None

default:"None"

Wire format (defaults to ascii_binary)

ISO8583Builder | None

default:"None"

Builder to use for validation (defaults to one for the message’s version)

bytes

The encoded message

`decode_message()`

def decode_message(
    data: bytes,
    fmt: WireFormat | None = None,
    version: ISO8583Version = ISO8583Version.V1987,
    network: CardNetwork | None = None,
) -> ISO8583Message

Decode bytes in the given wire format into a message. Field values come back in this library’s usual string form (binary fields as uppercase hex, numbers as digit strings), so the result works with the validator, explainer, converter and everything else. Parameters

bytes

required

Encoded message

WireFormat | None

default:"None"

Wire format (defaults to ascii_binary)

ISO8583Version

default:"ISO8583Version.V1987"

ISO 8583 version

CardNetwork | None

default:"None"

Card network. Detected from the PAN when omitted.

ISO8583Message

The decoded message

Core

Security

Wire formats

Networking

LLM

Servers

Demo

Functions

`encode_message()`

`decode_message()`

​Functions

​encode_message()

​decode_message()

Functions

`encode_message()`

`decode_message()`