beforeGet( )

A hook that is triggered before a get() operation.

The beforeGet() hook runs when the get() function is called.

The hook does not run when the find function is called or when a dataset retrieves items from the collection it is connected to.

Return a string or a Promise that resolves to a string from the beforeGet() function. The returned string will be used as the itemId parameter for the get() operation. The item with the new itemId will be retrieved instead of the item with the original itemId.

If the returned value is of the wrong type, the value is ignored.

A rejected Promise blocks the call to get() and also calls the onFailure() hook if it has been registered.

Because the beforeGet() hook is called before get() is executed, it can affect which item is retrieved or block the get().