From dcbc541accba3d57ecb6b18e0a1a52578eeef853 Mon Sep 17 00:00:00 2001
From: Ayrat Badykov <ayratin555@gmail.com>
Date: Wed, 3 Apr 2019 13:57:20 +0300
Subject: [PATCH] fix failing in rpc if balance is empty

---
 .../lib/block_scout_web/views/api/rpc/address_view.ex  | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/views/api/rpc/address_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api/rpc/address_view.ex
index f614f3cb88..90da6bed23 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api/rpc/address_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api/rpc/address_view.ex
@@ -9,7 +9,7 @@ defmodule BlockScoutWeb.API.RPC.AddressView do
   end
 
   def render("balance.json", %{addresses: [address]}) do
-    RPCView.render("show.json", data: "#{address.fetched_coin_balance.value}")
+    RPCView.render("show.json", data: "#{balance(address)}")
   end
 
   def render("balance.json", assigns) do
@@ -21,7 +21,7 @@ defmodule BlockScoutWeb.API.RPC.AddressView do
       Enum.map(addresses, fn address ->
         %{
           "account" => "#{address.hash}",
-          "balance" => "#{address.fetched_coin_balance.value}"
+          "balance" => "#{balance(address)}"
         }
       end)
 
@@ -157,4 +157,10 @@ defmodule BlockScoutWeb.API.RPC.AddressView do
       "symbol" => token.symbol
     }
   end
+
+  defp balance(address) do
+    balance = address.fetched_coin_balance && address.fetched_coin_balance.value
+
+    balance || 0
+  end
 end