The cayley convert command
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We can convert knowledge-content files from one representation format to another with the cayley convert command.
2. ábra: cayley convert
The following command converts the test data from n-quads format to JSON-LD format:
$ cayley convert --load data/testdata.nq --dump data/testdata.jsonld
The next command below does the same conversion, but the results will be written to the standard output:
$ cayley convert --load data/testdata.nq --dump_format jsonld --dump -
I0915 19:15:58.328789 30572 cayley.go:63] Cayley version: 0.7.5 (cf576babb7db)
I0915 19:15:58.328974 30572 dump.go:20] writing quads to stdout
I0915 19:15:58.328989 30572 convert.go:100] reading "data/testdata.nq"
[{"@id":"alice","follows":[{"@id":"bob"}]},{"@id":"bob","follows":[{"@id":"fred"}],"status":[{"@value":"cool_person"}]},{"@id":"charlie","follows":[{"@id":"bob"},{"@id":"dani"}]},{"@id":"dani","follows":[{"@id":"bob"},{"@id":"greg"}],"status":[{"@value":"cool_person"}]},{"@id":"emily","follows":[{"@id":"fred"}]},{"@id":"fred","follows":[{"@id":"greg"}]},{"@id":"greg","status":[{"@value":"cool_person"}]},{"@id":"predicates","are":[{"@id":"follows"},{"@id":"status"}]},{"@graph":[{"@id":"emily","status":[{"@value":"smart_person"}]},{"@id":"greg","status":[{"@value":"smart_person"}]}],"@id":"smart_graph"}]
[{"@id":"alice","follows":[{"@id":"bob"}]},{"@id":"bob","follows":[{"@id":"fred"}],"status":[{"@value":"cool_person"}]},{"@id":"charlie","follows":[{"@id":"bob"},{"@id":"dani"}]},{"@id":"dani","follows":[{"@id":"bob"},{"@id":"greg"}],"status":[{"@value":"cool_person"}]},{"@id":"emily","follows":[{"@id":"fred"}]},{"@id":"fred","follows":[{"@id":"greg"}]},{"@id":"greg","status":[{"@value":"cool_person"}]},{"@id":"predicates","are":[{"@id":"follows"},{"@id":"status"}]},{"@graph":[{"@id":"emily","status":[{"@value":"smart_person"}]},{"@id":"greg","status":[{"@value":"smart_person"}]}],"@id":"smart_graph"}]