Metadata projections

A metadata projection is a bidirectional XSLT transformation, meant to simplify integration of the VidiCore system with several third party systems.

A projection consists of an incoming and an outgoing XSLT transformation.

  • The incoming projection transforms information in some format to a format supported by VidiCore.
  • The outgoing projection transforms information from VidiCore to a some other format.

When you use projections to transform item metadata then the outgoing projection will transform a MetadataListDocument and the incoming projection must produce a MetadataDocument.

Get information about projections

List all projections

GET /projection

Returns a list of all defined projections.

Query Parameters:
  • url (boolean) –
    • true - Return list of URLs.
    • false (default) - Return list of ids.
Produces:
  • application/xml, application/json – URIListDocument
  • text/plain – CRLF-delimited list of ids or URLs
Role:

_projection_read

Retrieve an outgoing projection

GET /projection/(projection-id)/outgoing

Returns the projection use to transform information from the VidiCore API, GET metadata.

Status Codes:
  • 404 Not found – Could not find the projection identified by projection-id.
Produces:
  • application/xml – XML, XSLT stylesheet
Role:

_projection_read

Retrieve an incoming projection

GET /projection/(projection-id)/incoming

Returns the projection use to transform information to the VidiCore API, PUT metadata.

Status Codes:
  • 404 Not found – Could not find the projection identified by projection-id.
Produces:
  • application/xml – XML, XSLT stylesheet
Role:

_projection_read

Create/modify/delete projections

Note

Please note that the projection result must be an valid XML document.

Update or create an outgoing projection

PUT /projection/(projection-id)/outgoing

Creates a new projection if not defined earlier, and sets the outgoing projection to the specified stylesheet. If a new projection is created, the incoming transformation is set to be the identity transform.

Accepts:
  • application/xml – XML, XSLT stylesheet
Produces:
  • application/xml – XML, XSLT stylesheet
Role:

_projection_write

Update or create an incoming projection

PUT /projection/(projection-id)/incoming

Creates a new projection if not defined earlier, and sets the incoming projection to the specified stylesheet. If a new projection is created, the outgoing transformation is set to be the identity transform.

Accepts:
  • application/xml – XML, XSLT stylesheet
Produces:
  • application/xml – XML, XSLT stylesheet
Role:

_projection_write

Delete a projection

DELETE /projection/(projection-id)

Removes the projection.

Status Codes:
  • 200 OK – The projection was deleted successfully.
  • 404 Not found – Could not find the projection identified by projection-id.
Role:

_projection_write