epcis-js

Keywords

EPCIS, Electronic Product Code Information Services, RFID, GS1

Introduction

This is a Node.js libary to parse EPCIS documents. We try to translate it into a more useful javascript structure.

What is EPCIS

For more information checkout the following links:

http://en.wikipedia.org/wiki/EPCIS

http://www.gs1.org/epcis

Impelementation Status

Currently ObjectEvent and AggregationEvent are implemented.

EPCIS Version 1.1 Specification (May 2014)

Required or Optional

Fields	ObjectEvent	AggregationEvent	TransactionEvent	TransformationEvent
eventTime	R	R	R	R
recordTime	O	O	O	O
eventTimeZoneOffset	R	R	R	R
sourceList	O	O	O	O
destinationList	O	O	O	O
bizStep	O	O	O	O
disposition	O	O	O	O
readPoint	O	O	O	O
bizLocation	O	O	O	O
bizTransactionList	O	O	R	O
action	R	R	R
epcList	O		O
quantityList	O		O
childQuantityList		O
parentID		O	O
childEPCs		O
ilmd	O			O
inputEPCList				O
outputEPCList				O
inputQuantityList				O
outputQuantityList				O
transformationID				O

Different meanings of an "Action"

TODO

Notes

• epcList: If multiple items are listet, the event is valid for all of them. Thus, it can be split into individual events too.

• If bizTransactionList is given, it maps to the objects identified in epcList and quantityList. This means we could still create individual events here. Right?

General

_	Retrospective ( at the time of the event)	Prospective (true until contradicted by subsequent event)
What	EPC, EPCClass + quantity
When	Time
Where	ReadPointID	BusinessLocationID
Why	BusinessStepID	DispositionID

    | *BusinessTransactionList, Source/Destination, ILMD*

Development

The implementation is based on Typescript. To start development run:

npm install     # installs the dependencies
grunt           # runs the tsc compiler

This will watch the *.ts files and compile them into *.js files

Tests

mocha tests/test_aggregation.js

Debugging

mocha --debug-brk tests/test_aggregation.js

Then attach a debugger, e.g. Visual Studio Code.