Cantemo write item metadata

The metadata of an item are defined in the item's metadata group. It is a list of fields defined in the Cantemo admin part.

Item ID
It is the id of the item that you wish to modify metadata;

Metadata fields
This is list of metadata fields values assigned to that item. Metadata fields are specified using a JSON data structure. You may use Group/fields mapping syntax

{
  "{metadatagroup.fieldName1}": value1,
  "{metadatagroup.fieldName2}": value2
}