Add getRoot method

service/processHttp.go

@@ -79,6 +79,10 @@ func claimHandler(w http.ResponseWriter, req *http.Request, op string) {
 		resp.Response, err = T.GenProof([]byte(c.ClaimData))
 	}
 
+	if op == "root" {
+		resp.Response = T.GetRoot()
+	}
+
 	if op == "check" {
 		if len(c.ProofData) < 1 {
 			resp.Error = true
@@ -121,6 +125,9 @@ func Listen(port int, proto string) {
 			claimHandler(w, r, "gen")})
 	http.HandleFunc("/checkProof", func(w http.ResponseWriter, r *http.Request) {
 			claimHandler(w, r, "check")})
+	http.HandleFunc("/getRoot", func(w http.ResponseWriter, r *http.Request) {
+			claimHandler(w, r, "root")})
+
 
 	if proto == "https" {
 	  log.Print("Starting server in https mode")

tree/tree.go

@@ -60,3 +60,7 @@ func (t *Tree) CheckProof(data []byte, mpHex string) (bool, error) {
   claim := mkcore.NewGenericClaim(t.Namespace, "default", data, nil)
   return merkletree.CheckProof(t.Tree.Root(), mp, claim.Hi(), claim.Ht(), t.Tree.NumLevels()), nil
 }
+
+func (t *Tree) GetRoot() (string) {
+  return t.Tree.Root().Hex()
+}