From 560f93be76a9669dbbd4db2082125c53bda4b939 Mon Sep 17 00:00:00 2001
From: Marek Kotewicz <marek.kotewicz@gmail.com>
Date: Thu, 25 Jun 2015 10:08:01 +0200
Subject: [PATCH] fixed eth_getTransactionByHash when transactionHash is
 unknown

---
 libweb3jsonrpc/WebThreeStubServerBase.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libweb3jsonrpc/WebThreeStubServerBase.cpp b/libweb3jsonrpc/WebThreeStubServerBase.cpp
index c63c22693..cc0e80eab 100644
--- a/libweb3jsonrpc/WebThreeStubServerBase.cpp
+++ b/libweb3jsonrpc/WebThreeStubServerBase.cpp
@@ -385,6 +385,9 @@ Json::Value WebThreeStubServerBase::eth_getTransactionByHash(string const& _tran
 	try
 	{
 		h256 h = jsToFixed<32>(_transactionHash);
+		if (!client()->isKnownTransaction(h))
+			return Json::Value(Json::nullValue);
+
 		auto l = client()->transactionLocation(h);
 		return toJson(client()->transaction(h), l, client()->numberFromHash(l.first));
 	}