diff --git a/cyberwow/lib/controller/rpc.dart b/cyberwow/lib/controller/rpc.dart
index 05fb9bb..674eb76 100644
--- a/cyberwow/lib/controller/rpc.dart
+++ b/cyberwow/lib/controller/rpc.dart
@@ -26,6 +26,7 @@ import 'package:http/http.dart' as http;
 import 'package:flutter/foundation.dart';
 
 import '../config.dart';
+import '../helper.dart';
 
 int rpcID = 0;
 
@@ -68,8 +69,7 @@ Future<String> rpcString(String method, {String field}) async {
     final _result = json.decode(response.body)['result'];
     final _field = field == null ? _result : _result[field];
 
-    final JsonEncoder encoder = new JsonEncoder.withIndent('  ');
-    return encoder.convert(_field);
+    return pretty(_field);
   }
 }
 
@@ -180,8 +180,7 @@ Future<String> rpcOtherString(String method, {String field}) async {
     final _body= json.decode(response.body);
     final _field = field == null ? _body: _body[field];
 
-    final JsonEncoder encoder = new JsonEncoder.withIndent('  ');
-    return encoder.convert(_field);
+    return pretty(_field);
   }
 }
 
diff --git a/cyberwow/lib/helper.dart b/cyberwow/lib/helper.dart
new file mode 100644
index 0000000..bf03074
--- /dev/null
+++ b/cyberwow/lib/helper.dart
@@ -0,0 +1,27 @@
+/*
+
+Copyright 2019 fuwa
+
+This file is part of CyberWOW.
+
+CyberWOW is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+CyberWOW is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with CyberWOW.  If not, see <https://www.gnu.org/licenses/>.
+
+*/
+
+import 'dart:convert';
+
+String pretty(dynamic x) {
+  final JsonEncoder encoder = new JsonEncoder.withIndent('  ');
+  return encoder.convert(x);
+}
diff --git a/cyberwow/lib/state.dart b/cyberwow/lib/state.dart
index d3aa102..b903072 100644
--- a/cyberwow/lib/state.dart
+++ b/cyberwow/lib/state.dart
@@ -200,7 +200,7 @@ class SyncedState extends HookedState {
   String getInfo = 'getInfo';
   String syncInfo = 'syncInfo';
   String getConnections = 'getConnections';
-  String getTransactionPool = 'getTransactionPool';
+  List<dynamic> getTransactionPool = [];
 
   SyncedState(f, s, this.stdout, this.processOutput) : super (f, s);
 
@@ -232,9 +232,9 @@ class SyncedState extends HookedState {
         getConnections = await rpc.getConnectionsString();
         // getTransactionPool = await rpc.getTransactionPoolString();
 
-        final getTransactionPool = await rpc.getTransactionPoolSimple();
+        getTransactionPool = await rpc.getTransactionPoolSimple();
 
-        log.fine('getTransactionPool: $getTransactionPool');
+        // log.fine('getTransactionPool: $getTransactionPool');
         syncState();
       }
     }
diff --git a/cyberwow/lib/widget/synced.dart b/cyberwow/lib/widget/synced.dart
index aca7d39..9a4adc4 100644
--- a/cyberwow/lib/widget/synced.dart
+++ b/cyberwow/lib/widget/synced.dart
@@ -23,6 +23,7 @@ import 'package:flutter/material.dart';
 
 import '../state.dart';
 import '../config.dart';
+import '../helper.dart';
 
 Widget summary(SyncedState state) {
   return Container
@@ -157,18 +158,19 @@ Widget rpcView(String title, String body) {
 Widget getInfo(SyncedState state) => rpcView('info', state.getInfo);
 Widget getConnections(SyncedState state) => rpcView('connections', state.getConnections);
 Widget syncInfo(SyncedState state) => rpcView('sync info', state.syncInfo);
-Widget getTransactionPool(SyncedState state) => rpcView('transaction pool', state.getTransactionPool);
+Widget getTransactionPool(SyncedState state) =>
+  rpcView('transaction pool', pretty(state.getTransactionPool));
 
 Widget pageView (SyncedState state, PageController controller) {
   return PageView (
     controller: controller,
     children:
     [
+      getTransactionPool(state),
       summary(state),
       getInfo(state),
       getConnections(state),
       // syncInfo(state),
-      // getTransactionPool(state),
     ],
   );
 }