QueryString params?

[John Doherty]

Hello all, me again :) Looking at the following example:

What are the rules for when an AI should be part of the URL path, verses the query string? or are they interchangeable?

Thanks 

[d...@evrythng.com]

Hi John,

The rules are described in the ABNF grammar in the standard or in the files on GitHub here: https://github.com/evrythng/digital-link.js/tree/master/grammar

You can also test what goes into the path and what goes into the query string by having at look at the digital link playground here: https://digital-link.tools/

Cheers,

Dom

[Mark Harrison]

Hi John,

The rules about whether an AI should be part of the URI path or the URI query string can be found in https://ref.gs1.org/standards/digital-link/uri-syntax/ formally defined using ABNF grammar in chapter 4 and with examples in chapter 5.  They're not interchangeable.  Whereas GS1 element strings may have an ordering depending on whether the AI and its value is of 'predefined length' (see GS1 Gen Specs v23 section 7.8.3 and figure 7.8.5-2 ), GS1 Digital Link uses a different ordering, putting the primary identifier in the URI path info and data attributes in the URI query string.

Within the part of the URI path info that is characteristic of GS1 Digital Link URIs, only GS1 Application Identifiers that are primary identification keys (simple keys such as SSCC (00), GTIN (01), physical location GLN (414)  or compound keys such as GTIN (01) + Lot (10), GTIN (01) +Serial (21), GLN (414) + GLN extension (254)) should appear within the URI path information, in a well-defined order when multiple AIs form a compound identification key.  Other AIs (such as expiration date (17)) that represent data attributes always appear only within the URI query string.

Best wishes

Mark

[John Doherty]

Thank you both

[Jason Hale]

This is a much better answer than mine 😃👍

Sent from Outlook for iOS

---

From: gs1-digital-l...@googlegroups.com <gs1-digital-l...@googlegroups.com> on behalf of John Doherty <jo...@orcascan.com>
Sent: Tuesday, January 31, 2023 2:46:05 PM
To: GS1 Digital Link Developers <gs1-digital-l...@googlegroups.com>
Subject: [GS1 DL Devs] Re: QueryString params?

 

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