- From: Dave Longley <dlongley@digitalbazaar.com>
- Date: Wed, 17 Aug 2016 15:50:00 -0400
- To: Aymeric Brisse <aymeric.brisse@gmail.com>, Gregg Kellogg <gregg@greggkellogg.net>
- Cc: JSON-LD CG <public-linked-json@w3.org>
On 08/17/2016 12:28 PM, Aymeric Brisse wrote: > Hello Gregg & Dave, > > I am currently dealing with another problem. Let's say 2 resources > are linked together by more than 1 predicate. > > As a JSON API developer that wants to return a tree and not a graph > I expect that the following LD framed graph... > > [snip] > > ... to duplicate some parts of it if needed > > That way the developper don't have to deal with an identitymap > pattern just to parse the JSON, meaning that he can access directly > to the hash object["pmcore:relB"]["rdfs:label"]["@value"] > > How can it be achieved in an automatic manner? The JavaScript, Python, and PHP framing implementations support several framing "embed" options: @always - always embed (nest) nodes except when a circular reference is encountered, even if it duplicates data @last - (the default) only embed the last occurrence of a particular node so that the data is not modified via duplication @never - never embed nodes, always use simple references Some more discussion is here: https://github.com/json-ld/json-ld.org/issues/377 The default embed option can be changed at the API level by passing in a flag to the `frame` call. The embed option can also be set at a more granular level within the frame itself. I've done this on the playground using your example data and the "@always" option, to produce what I believe is the desired output: http://json-ld.org/playground/#/gist/fa39b164da8dd39e2e9c9991d8392efb I don't know if the Ruby implementation supports these features yet. -- Dave Longley CTO Digital Bazaar, Inc. http://digitalbazaar.com
Received on Wednesday, 17 August 2016 19:50:24 UTC