Add function to refresh session

session.go

@@ -0,0 +1,23 @@
+package sn
+
+import (
+	"fmt"
+	"net/http"
+)
+
+func RefreshSession() error {
+	req, err := http.NewRequest("GET", SnUrl+"/api/auth/session", nil)
+	if err != nil {
+		err = fmt.Errorf("error preparing SN request: %w", err)
+		return err
+	}
+	req.Header.Set("Cookie", SnAuthCookie)
+
+	client := http.DefaultClient
+	_, err = client.Do(req)
+	if err != nil {
+		err = fmt.Errorf("error refreshing SN session: %w", err)
+		return err
+	}
+	return nil
+}