You can use the list method of the Item object to retrieve a list of all items in a particular library.

Verify that you have access to the Item service.

1

Retrieve the ID of the content library whose items you want to list.

2

List the items of the specific library.

3

Retrieve a list of the files that belong to a library item.

You can see an example query operation in the code example for Edit the Settings of a Library Item. The beginning of the example lists the items of a published library and prints a list with the names and size of each file in the listed items.