It is pretty easy to apply

Dim WEB = New Net.WebClient()

WEB.Headers("Content-Type") = "application/json"
WEB.Headers("Authorization") = "Bearer " & varToken

Try
    result = WEB.UploadString(varURL&, "POST", "")
 Catch ex As Exception
    Return ("")
End Try

Return result

Just add a token into header, and can access URL