packager

Documentation

Overview

Package packager assembles named ISO-8583 profiles — immutable iso8583 Schemas wired from the orthogonal fieldcodec/lengthcodec catalog. A profile is just a *Schema (there is no special packager type), so card-scheme dialects are deltas (Derive/Override) over a base, and the same composition is also expressible as declarative config via the generic loader.

Index

• func CoralPay() *iso8583.Schema
• func ISO87A() *iso8583.Schema
• func ISO87B() *iso8583.Schema
• func ISO87C() *iso8583.Schema
• func ISO93A() *iso8583.Schema
• func ISO93B() *iso8583.Schema
• func Load(data []byte, reg *fieldcodec.Registry) (*iso8583.Schema, error)
• func LoadEmbedded(name string) (*iso8583.Schema, error)
• func Mastercard() *iso8583.Schema
• func Postilion() *iso8583.Schema
• func Profile(id string) (*iso8583.Schema, bool)
• func Profiles() map[string]func() *iso8583.Schema
• func VisaBaseI() *iso8583.Schema
• func Zone() *iso8583.Schema

Functions

func CoralPay

func CoralPay() *iso8583.Schema

CoralPay is an ISO 8583:1987 profile for the CoralPay acquirer link, generated field-for-field from the certified jPOS GenericPackager definition (fields2.xml) used by the legacy switch-gateway. It reuses the postField/p* shorthands from postilion.go.

func ISO87A

func ISO87A() *iso8583.Schema

ISO87A returns the ISO 8583:1987 variant A (ASCII) profile.

func ISO87B

func ISO87B() *iso8583.Schema

ISO87B returns the ISO 8583:1987 variant B (binary / BCD) profile.

func ISO87C

func ISO87C() *iso8583.Schema

ISO87C returns the ISO 8583:1987 variant C (EBCDIC) profile.

func ISO93A

func ISO93A() *iso8583.Schema

ISO93A returns the ISO 8583:1993 variant A (ASCII) profile.

func ISO93B

func ISO93B() *iso8583.Schema

ISO93B returns the ISO 8583:1993 variant B (binary / BCD) profile.

func Load

func Load(data []byte, reg *fieldcodec.Registry) (*iso8583.Schema, error)

Load builds a schema from a JSON document, resolving names against reg.

func LoadEmbedded

func LoadEmbedded(name string) (*iso8583.Schema, error)

LoadEmbedded builds a schema from an embedded schemadef/<name> document using the default registry.

func Mastercard

func Mastercard() *iso8583.Schema

Mastercard is a representative Mastercard dialect over ISO 8583:1993 variant A, redefining the additional-data private fields DE 48 and DE 63. It demonstrates a scheme overlay via Derive/Override.

func Postilion

func Postilion() *iso8583.Schema

Postilion is an ISO 8583:1987 profile for Postilion-style switch links (the layout used by many African/agency acquirers, e.g. Interswitch). It pins an ASCII MTI, a BINARY primary+secondary bitmap, ASCII fixed and LL/LLL variable fields, and a DE 127 reserved-private subfield group carried under a 6-digit length prefix over a BINARY sub-bitmap. It validated against a live host (sign-on 0810 + cashout 0210). It is a clean-room composition from the public ISO 8583:1987 field semantics, not a port of any vendor packager.

On the wire such links use a 2-byte big-endian length prefix and require a network sign-on (0800) before financial messages — both transport concerns, handled by the caller (see the link package), not the schema.

func Profile

func Profile(id string) (*iso8583.Schema, bool)

Profile builds a built-in profile by id.

func Profiles

func Profiles() map[string]func() *iso8583.Schema

Profiles maps every built-in profile id to its constructor, for discovery and name-based lookup (e.g. the generic loader, an admin API).

func VisaBaseI

func VisaBaseI() *iso8583.Schema

VisaBaseI is Visa Base I expressed as a delta over ISO 8583:1993 variant A: the private fields DE 62/63 carry Visa-specific binary network data. This is a representative overlay demonstrating Derive/Override, not the full Visa dialect.

func Zone

func Zone() *iso8583.Schema

Zone is an ISO 8583:1987 profile for the Zone acquirer link, generated field-for-field from the certified jPOS GenericPackager definition (zone.xml) used by the legacy switch-gateway. It reuses the postField/p* shorthands from postilion.go.