topic Re: Can't get relations using automation REST api in Nuxeo Forum

Can't get relations using automation REST api

Chris_ — Fri, 07 Dec 2012 15:53:30 GMT

Hi,

I'm using Nuxeo 5.6. I try to use REST api to get related documents. I use operation Relations.GetRelations with parameters: predicate = References outgoing = true and input: doc:344fad4a-99bf-45b2-85fc-63c45e48093d.

Operation returns empty list of documents although document with this uid has outgoing reference with predicate References. I tried some other operations and they worked so I know how to create correct request. Did someone have similar issue? Does operation Relations.GetRelations work correctly? There is also one additional parameter graphName, what is it's purpose?

Thanks for help.

Re: Can't get relations using automation REST api

Artmoni_Mobile — Sat, 26 Oct 2013 14:25:15 GMT

Hi,

did you find an answer? I encounter a similar issue.

Thanks

Re: Can't get relations using automation REST api

russtrotter_ — Thu, 14 Nov 2013 17:16:07 GMT

I know this answer is a year late, but I just learned how to do this in 5.8 LTS. The trick is to understand what valid "predicate" values are, e.g. I had to use a DOM inspector on the DM UI to realize that they are actually URIs, here are valid values:

So, to query the relations of a document with the API, do the following:

request method POST
URL path /nuxeo/api/v1/automation/Relations.GetRelations
request header "Accept: application/json+nxentity,/"
request header "Content-Type: application/json+nxrequest"

Your request body should be like this:

{
 "input":"/default-domain/workspaces/mydoc",
 "context":{},
 "params":{
    "predicate":"http://purl.org/dc/terms/References",
    "outgoing":false
  }
}

Notes:

input JSON parameter identifies the relations for
params.predicate is one of the URIs from above
params.outgoing: true=return outgoing relations from this document, false=return incoming relations to this document

hope that helps!