Core Module

from iso8583sim.core.parser import ISO8583Parser
from iso8583sim.core.builder import ISO8583Builder
from iso8583sim.core.validator import ISO8583Validator
from iso8583sim.core.types import ISO8583Message, CardNetwork

# Parse
parser = ISO8583Parser()
message = parser.parse("0100702406C120E09000...")

# Build
builder = ISO8583Builder()
raw = builder.build(message)

# Validate
validator = ISO8583Validator()
errors = validator.validate_message(message)

# Auto-detect network from PAN
message = parser.parse(raw_message)
print(message.network)  # CardNetwork.VISA

# Or specify explicitly
message = parser.parse(raw_message, network=CardNetwork.MASTERCARD)

from iso8583sim.core.types import ISO8583Version

parser = ISO8583Parser(version=ISO8583Version.V1993)
builder = ISO8583Builder(version=ISO8583Version.V1993)

from iso8583sim.core.pool import MessagePool
from iso8583sim.core.parser import ISO8583Parser

pool = MessagePool(size=1000)
parser = ISO8583Parser(pool=pool)

# Messages are recycled automatically
for raw in raw_messages:
    message = parser.parse(raw)
    # ... process message ...
    pool.release(message)  # Return to pool