site columns used in a document library does not appear in a flow for use

[joleneyes]

Hi, 

I am trying to create a flow from a SharePoint document library which contains few site columns i have used.

These site columns are not appearing in the flow and all i could see are the fields of the document libraries.

How do i get the site columns to appear in list of fields while composing a flow.

[PrasadAthalye]

You will have to use REST API for these columns using Send HTTP request to SharePoint.

/_api/web/lists/getbytitle('Resources')/items?$select=FileLeafRef,File_x0020_Type,