A JSON-LD Context
for the query. In an API, this will frequently be implicit. For example,
using json-rql as the body of a POST to
http://example.com/my-api/v1/person/query might have the implicit context
of a Person (possibly found at http://example.com/my-api/v1/person).
The data pattern to match, as a set of subjects or a group. Variables are used as placeholders to capture matching properties and values in the domain.
Examples:
Match a subject by its @id
{
...
"@where": { "@id": "fred" }
}Match a subject where any property has a given value
{
...
"@where": {
"@id": "?id",
"?prop": "Bedrock"
}
}Match a subject with a given property, having any value
{
...
"@where": {
"@id": "?id",
"name": "?name"
}
}The Javascript engine supports exact-matches for subject identities, properties and values. Inline filters will be available in future.
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A sub-type of Pattern which matches data using a
@whereclause.https://json-rql.org/interfaces/query.html