From f310e7ccdcc167a618cfef41f946ed4827a27aba Mon Sep 17 00:00:00 2001
From: Alex Oberhauser <obale@users.noreply.github.com>
Date: Tue, 9 May 2017 05:38:31 -0400
Subject: [PATCH] Fix for "filterCreationErrorCallback is not a function" Error
 #552 (#861)

---
 lib/web3/filter.js      | 4 +++-
 lib/web3/methods/eth.js | 4 ++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/web3/filter.js b/lib/web3/filter.js
index 0eb41be..b8454a4 100644
--- a/lib/web3/filter.js
+++ b/lib/web3/filter.js
@@ -150,7 +150,9 @@ var Filter = function (requestManager, options, methods, formatter, callback, fi
             self.callbacks.forEach(function(cb){
                 cb(error);
             });
-            filterCreationErrorCallback(error);
+            if (typeof filterCreationErrorCallback === 'function') {
+              filterCreationErrorCallback(error);
+            }
         } else {
             self.filterId = id;
 
diff --git a/lib/web3/methods/eth.js b/lib/web3/methods/eth.js
index 494e8f4..54a0513 100644
--- a/lib/web3/methods/eth.js
+++ b/lib/web3/methods/eth.js
@@ -335,8 +335,8 @@ Eth.prototype.contract = function (abi) {
     return factory;
 };
 
-Eth.prototype.filter = function (fil, callback) {
-    return new Filter(this._requestManager, fil, watches.eth(), formatters.outputLogFormatter, callback);
+Eth.prototype.filter = function (fil, callback, filterCreationErrorCallback) {
+    return new Filter(this._requestManager, fil, watches.eth(), formatters.outputLogFormatter, callback, filterCreationErrorCallback);
 };
 
 Eth.prototype.namereg = function () {