Get a document modifiedBy in JAVA with RestApi

Question

As you can see in images, I have some folder in my document library. I wanna reach the files in the folder and take the "modifiedby" column and change it with java-rest api.

I can reach the file like this:

https://siteUrl/_api/web/GetFolderByServerRelativeUrl('Shared%20Documents/abcFolder')/Files('test.docx')

or library items, but I couldn't reach columns.

Do you know how I can get the columns value and change it?

EDIT

I think this one can be but if you have better idea or you know how I change modifiedby title in java please help me.

https://siteUrl/_api/web/GetFolderByServerRelativeUrl('Shared%20Documents/abcFolder')/Files(test.docx')?$select=ModifiedBy/Title&$expand=ModifiedBy

Answer 1

ModifiedBy references a user. The Title is the display name of the user and can not be modified using the client api.

The docs state:

Not all functionality that you find in the Microsoft.Office.Server.UserProfiles assembly is available from client APIs. For example, you have to use the server object model to create or change user profiles because they're read-only from client APIs (except the user profile picture).