An item is a container inside of a collection and can be thought of as a single row in a spreadsheet. A collection can have many items, but an item can only belong to one collection. Each item is made up of fields.
Each data item consists of its URI, collection, and a list of fields. The fields consist of a mapping from schema field names to data item values. Each field name corresponds to a matching field in the collection's schema. If a data item has not been given a specific value for each schema field, the value will either be the default on the schema field or null.
The data item endpoints are responsible for the creation, deletion, and updating of data items within a collection. The actions are outlined below. A user can modify data items if they have access to the data source.