When trying to publish data on the Databus, the HTTP API accepts not only fully complete JSON-LD DataIds as input. Some properties of the JSON-LD input are allowed to be omitted as they can be inferred from others.
The following table shows a list of inferrable properties that can optionally be omitted in the input.
Property | Value inferred from |
---|---|
dataid:publisher | @id of databus:Version |
databus:group | @id of databus:Version |
databus:artifact | @id of databus:Version |
dct:hasVersion | @id of databus:Version |
dct:abstract | First line of dct:description |
dct:issued | current time |
dct:modified | current time (always set by server) |
Property | Value inferred from |
---|---|
@id | @id of databus:Version, databus:formatExtension, databus:compression and content variants (i.e. properties with prefix https://dataid.dbpedia.org/databus-cv#) |
databus:formatExtension | content-disposition header of file specified with dcat:downloadURL (if present). Alternatively: String value of dcat:downloadURL |
databus:compression | content-disposition header of file specified with dcat:downloadURL (if present). Alternatively: String value of dcat:downloadURL |
dataid:shasum | sha256sum of the file specified with dcat:downloadURL |
dataid:byteSize | size of the file specified with dcat:downloadURL |
dct:hasVersion | dct:hasVersion of associated databus:Version |
properties with prefix https://dataid.dbpedia.org/databus-cv# | Only set if the property is used in any other databus:Part of the databus:Version. Value is set to empty string. |
The following table lists the additional graphs that can be generated by the Databus automatically:
Type | Inferred from |
---|---|
databus:Artifact | databus:artifact of databus:Version |
databus:Group | databus:group of databus:Group. |
rdf:Property with rdfs:subPropertyOf databus:contentVariant | all properties starting with dcv: |
{
"@context": "https://downloads.dbpedia.org/databus/context.jsonld",
"@graph": [
{
"@type": [
"Version",
"Dataset"
],
"@id": "https://databus.example.org/janfo/examples/example_one/2023-03-08",
"title": "My Title",
"description": "This is my description",
"license": "http://dalicc.net/licenselibrary/AdaptivePublicLicense10",
"distribution": [
{
"@type": "Part",
"downloadURL": "https://holycrab13.github.io/webid.ttl"
},
{
"@type": "Part",
"downloadURL": "https://holycrab13.github.io/webid.ttl",
"dcv:tag": "asdf"
},
{
"@type": "Part",
"downloadURL": "https://holycrab13.github.io/webid.ttl",
"dcv:tag": "hallo"
}
]
}
]
}
{
"@context": "https://downloads.dbpedia.org/databus/context.jsonld",
"@graph": [
{
"@id": "https://databus.example.org/janfo/examples/example_one/2023-03-08",
"@type": [
"databus:Version",
"Dataset"
],
"artifact": "https://databus.example.org/janfo/examples/example_one",
"group": "https://databus.example.org/janfo/examples",
"abstract": "This is my description",
"description": "This is my description",
"hasVersion": "2023-03-08",
"issued": "2023-03-15T14:08:44.413Z",
"license": "http://dalicc.net/licenselibrary/AdaptivePublicLicense10",
"modified": "2023-03-15T14:08:44.413Z",
"publisher": "https://databus.example.org/janfo#this",
"title": "My Title",
"distribution": [
"https://databus.example.org/janfo/examples/example_one/2023-03-08#example_one_tag=hallo",
"https://databus.example.org/janfo/examples/example_one/2023-03-08#example_one",
"https://databus.example.org/janfo/examples/example_one/2023-03-08#example_one_tag=asdf"
]
},
{
"@id": "https://databus.example.org/janfo/examples/example_one/2023-03-08#example_one_tag=hallo",
"@type": "Part",
"compression": "none",
"file": "https://databus.example.org/janfo/examples/example_one/2023-03-08/example_one_tag=hallo",
"formatExtension": "ttl",
"sha256sum": "d61a05ca4810367f361f17500304a168aab27a3119c93a18c00bce1775dfd6b1",
"dcv:tag": "hallo",
"hasVersion": "2023-03-08",
"issued": "2023-03-15T14:08:44.413Z",
"modified": "2023-03-15T14:08:44.413Z",
"byteSize": 2730,
"downloadURL": "https://holycrab13.github.io/webid.ttl"
},
{
"@id": "https://databus.example.org/janfo/examples/example_one/2023-03-08#example_one",
"@type": "Part",
"compression": "none",
"file": "https://databus.example.org/janfo/examples/example_one/2023-03-08/example_one",
"formatExtension": "ttl",
"sha256sum": "d61a05ca4810367f361f17500304a168aab27a3119c93a18c00bce1775dfd6b1",
"dcv:tag": "",
"hasVersion": "2023-03-08",
"issued": "2023-03-15T14:08:44.413Z",
"modified": "2023-03-15T14:08:44.413Z",
"byteSize": 2730,
"downloadURL": "https://holycrab13.github.io/webid.ttl"
},
{
"@id": "https://databus.example.org/janfo/examples/example_one/2023-03-08#example_one_tag=asdf",
"@type": "Part",
"compression": "none",
"file": "https://databus.example.org/janfo/examples/example_one/2023-03-08/example_one_tag=asdf",
"formatExtension": "ttl",
"sha256sum": "d61a05ca4810367f361f17500304a168aab27a3119c93a18c00bce1775dfd6b1",
"dcv:tag": "asdf",
"hasVersion": "2023-03-08",
"issued": "2023-03-15T14:08:44.413Z",
"modified": "2023-03-15T14:08:44.413Z",
"byteSize": 2730,
"downloadURL": "https://holycrab13.github.io/webid.ttl"
},
{
"@id": "https://databus.example.org/janfo/examples/example_one",
"@type": "Artifact"
},
{
"@id": "https://databus.example.org/janfo/examples",
"@type": "Group"
},
{
"@id": "dcv:tag",
"@type": "http://www.w3.org/1999/02/22-rdf-syntax-ns#Property",
"subPropertyOf": "databus:contentVariant"
}
]
}