$value is being considered as variable in REST API get method (SharePoint Integration)

Hi guys,

I am trying to get data from a CSV file which is uploaded in SharePoint to EPBCS application.

From Sharepoint REST API, using the following Source URL

GET https://{site_url}/_api/web/GetFolderByServerRelativeUrl('/Folder Name')/Files('{file_name}')/$value
Authorization: "Bearer " + accessToken

So, Created a connection in "Connections" card and provided till https://{site_url} and rest of the URL is specified in .get() as shown in the below image.

But, I am encountering error "No such property: Value for class: groovy.lang.Binding Rule". Can you guys help me in telling the compiler that $value is the part of the URL but not a variable?