func handleRootGet(w http.ResponseWriter, req *http.Request, ps URLParams, rt chunks.ChunkStore) {
	d.PanicIfTrue(req.Method != "GET", "Expected post method.")

	rootRef := rt.Root()
	fmt.Fprintf(w, "%v", rootRef.String())
	w.Header().Add("content-type", "text/plain")
}
func HandleRootGet(w http.ResponseWriter, req *http.Request, ps URLParams, rt chunks.ChunkStore) {
	err := d.Try(func() {
		d.Exp.Equal("GET", req.Method)

		rootRef := rt.Root()
		fmt.Fprintf(w, "%v", rootRef.String())
		w.Header().Add("content-type", "text/plain")
	})

	if err != nil {
		http.Error(w, fmt.Sprintf("Error: %v", err), http.StatusBadRequest)
		return
	}
}