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JSON Variant

Besides the binary representation, the RAE format has a JSON representation with the MIME type:
application/vnd.rhopoint.rae+json

A JSON RAE document is a plain UTF-8 JSON text — it has no magic string, no compression and no hash. The root object is the RaeJsonFile record:

Key	Type	Description
`format`	string	Identifies the data format. Currently always `"MeasurementComponentMetaTuple[]"`.
`version`	integer	Version of the file format. The current version is `1`.
`dataContainer`	string	Encoding of the payload. Currently always `"json"`.
`data`	array	The measurements, one object per MeasurementComponentMetaTuple.

Differences to the binary encoding

The payload objects have the same structure as in the binary encoding, but:

Abbreviated keys are used (e.g. mId instead of measurementIdentifier, srcId instead of sourceIdentifier). The tables in MeasurementComponentMetaTuple, MeasurementComponent and Measurement Data Types list both key sets.
Unset properties are omitted instead of being written as null.
Binary content (e.g. embedded files) is Base64-encoded.
In data records, class holds the logical type ("SingleMeasurement" / "FileReference") and value holds the JSON-serialized value string — see the note in Measurement Data Types.

Example

{
  "format": "MeasurementComponentMetaTuple[]",
  "version": 1,
  "dataContainer": "json",
  "data": [
    {
      "Meta": {
        "srcId": "0d9f4c1e-6a2b-4f43-9c1a-2f5e8d7b3a10",
        "mId": "0d9f4c1e-6a2b-4f43-9c1a-2f5e8d7b3a10",
        "mType": "composite",
        "time": "2026-07-07T12:34:56.7890123+00:00",
        "name": "Sample A",
        "ver": 2
      },
      "Component": {
        "type": "composite",
        "name": "Measurement",
        "comp": [
          {
            "type": "single",
            "name": "Gloss 60°",
            "data": {
              "class": "SingleMeasurement",
              "ver": 1,
              "value": "87.3",
              "valueType": "System.Double"
            },
            "meta": { "unit": "GU" },
            "ver": 2
          }
        ],
        "ver": 2
      }
    }
  ]
}