[ECODP-dev] LOD2 CKAN tech question

John Glover john.glover at okfn.org
Fri Feb 22 16:25:26 UTC 2013


Yes, the ODP CKAN repository has a custom schema that requires that these
fields are present. "published_by" must refer to an existing ODP publisher.


On 22 February 2013 17:16, Bert Van Nuffelen <bert.van.nuffelen at tenforce.com
> wrote:

> Hi,
> in the context of LOD2 Karel is creating an dataset and resource upload
> from a Linked Data workbench to a CKAN instance. For testing he uses the
> ODP.
> Now he is blocked in some aspects of the REST-calls to be executed, if
> this is at all possible.
> Can you assist him?
> thanks a lot.
> hereunder is the question.
> Bert
> ----
> Hi,
> I have been trying to get the CKAN upload to work in the case of the LOD2
> project. I noted however that our CKAN repository expects some the
> package_create call to have some parameters that have not been documented
> in the api (http://docs.ckan.org/en/ckan-1.8/apiv3.html#action-api).
> For instance, when I send the following json document to the server
> {"name":"testCKANcreate","
> notes":"Testing whether we can create a CKAN package","title":"ckan
> package test","url":"http://localhost:8080/index.html","version":"1.0"}
> The server returns an error message:
> {success:false,
>  help: "<long documentation string here, same as api>",
>  error: {"__type": "Validation Error",
>           "status": ["Missing value"],
>           "description": ["Missing value"],
>           "published_by": ["Missing value"]}}
> When i enter testing values, the system complains (correctly) that the
> published_by name is not found in the system.
> My question is: is this behavior specific to our CKAN repository at the
> ODP project? Because if it is, the LOD2 project will not be able to
> communicate with just any CKAN repository, which is too bad.
> Karel
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> Ecodp-dev at lists.okfn.org
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