Skip to content

Adding a Value

In order to add values to an existing resource, the HTTP method POST has to be used. The request has to be sent to the Knora server using the values path segment. Creating values requires authentication since only known users may add values.

Adding a Property Value

In order to add a value to a resource, its property type, value, and project has to be indicated in the JSON. Also the IRI of the resource the new value belongs has to be provided in the JSON.

HTTP POST to http://host/v1/values
  • Depending on the type of the new value, one of the following formats (all TypeScript interfaces defined in module addValueFormats) has to be used in order to create a new value:

    • addRichtextValueRequest
    • addLinkValueRequest
    • addIntegerValueRequest
    • addDecimalValueRequest
    • addBooleanValueRequest
    • addUriValueRequest
    • addDateValueRequest (see dateString in basicMessageComponents for the date format)
    • addColorValueRequest
    • addGeometryValueRequest
    • addHierarchicalListValueRequest
    • addintervalValueRequest
    • addGeonameValueRequest

Response on Value Creation

When a value has been successfully created, Knora sends back a JSON with the new value's IRI. The value IRI identifies the value and can be used to perform future Knora API V1 operations.

The JSON format of the response is described in the TypeScript interface addValueResponse in module addValueFormats.