diff --git a/client_test.go b/client_test.go
index b1869ba..e743443 100644
--- a/client_test.go
+++ b/client_test.go
@@ -403,3 +403,29 @@ func TestQueryStatistics(t *testing.T) {
 	assert.Nil(t,err)
 	assert.Equal(t, 1, res.RelationshipsDeleted(), "Expecting 1 relationships deleted")
 }
+
+func TestUtils(t *testing.T) {
+	res := RandomString(10)
+	assert.Equal(t, len(res), 10)
+
+	res = ToString("test_string")
+	assert.Equal(t, res, "\"test_string\"")
+	
+	res = ToString(10)
+	assert.Equal(t, res, "10")	
+
+	res = ToString(1.2)
+	assert.Equal(t, res, "1.2")
+
+	res = ToString(true)
+	assert.Equal(t, res, "true")
+
+	var arr = []interface{}{1,2,3,"boom"}
+	res = ToString(arr)
+	assert.Equal(t, res, "[1,2,3,\"boom\"]")
+	
+	jsonMap := make(map[string]interface{})
+	jsonMap["object"] = map[string]interface{} {"foo": 1}
+	res = ToString(jsonMap)
+	assert.Equal(t, res, "{object: {foo: 1}}")
+}
diff --git a/utils.go b/utils.go
index 5645d01..3a26cad 100644
--- a/utils.go
+++ b/utils.go
@@ -18,6 +18,14 @@ func arrayToString(arr []interface{}) string {
 	return "[" + strings.Join(strArray, ",") + "]"
 }
 
+func mapToString(data map[string]interface{}) string {
+	pairsArray := []string{}
+	for k, v := range data {
+		pairsArray = append(pairsArray, k + ": " + ToString(v))
+	}
+	return "{" + strings.Join(pairsArray, ",") + "}"
+}
+
 func ToString(i interface{}) string {
 	if(i == nil) {
 		return "null"
@@ -33,9 +41,12 @@ func ToString(i interface{}) string {
 		return strconv.FormatFloat(i.(float64), 'f', -1, 64)
 	case bool:
 		return strconv.FormatBool(i.(bool))
-	case []interface {}:
+	case []interface{}:
 		arr := i.([]interface{})
 		return arrayToString(arr)
+	case map[string]interface{}:
+		data := i.(map[string]interface{})
+		return mapToString(data)
 	default:
 		panic("Unrecognized type to convert to string")
 	}