Insert Data Item

Adds an item to a collection.

An item can only be inserted into an existing connection. You can create a new collection using the Data Collections API.

When an item is inserted into a collection, the item's ID is automatically assigned a random value. You can optionally provide a custom ID in dataItem.id when inserting the item. If you specify an ID that already exists in the collection, the insertion will fail.

If dataItem.data is empty, a new item is created with no data fields.