CODEWITHSUNDEEP
jsondata-conversionexpansionjson-ldlinked-data
Hannu
Hannu

Reputation: 11

Setting value as object in JSON-LD expansion

I try to convert JSON to JSON-LD and was wondering if I could use JSON-LD expansion algorithm for creating my converter. Then I could just specify my schema as a context and run the expansion algorithm for doing the conversion. Problem is that I cannot figure out how to define new value objects in context so that the expansion algorithm would work.

Let's say I have this:

{
  "timestamp": "2016-01-08T11:01:38Z"
}

and I want to get this:

{
  "prefix:time": {"prefix:start": "2016-01-08T11:01:38Z"}
}

I have tried it using the JSON-LD playground with something like this:

{
  "@context": {
    "timestamp": {
      "@id": "prefix:time",
      "@value": {"prefix:start": "@value"}
    }
  },
  "timestamp": "2016-01-08T11:01:38Z"
}

But the expanded result looks like this:

[
  {
    "prefix:time": [
      {
        "@value": "2016-01-08T11:01:38Z"
      }
    ]
  }
]

Is there any way to use the JSON-LD expansion (or other) algorithm to replace the value with a new JSON object?

Upvotes: 1

Views: 386

Answers (1)

Milo S
Milo S

Reputation: 4586

This Jolt transform does the transform you described.

[
  {
    "operation": "shift",
    "spec": {
      "timestamp": "prefix:time.prefix:start"
    }
  }
]

You can try it out at http://jolt-demo.appspot.com/

Upvotes: 1

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