From d52bd0352d2efc1e11520d7af07cc88dd9a409ae Mon Sep 17 00:00:00 2001
From: Martin Boehm <martin.boehm@1mbsoftware.net>
Date: Tue, 11 Jun 2019 16:30:21 +0200
Subject: [PATCH] Handle error on ethereum openRPC

---
 bchain/coins/eth/ethrpc.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/bchain/coins/eth/ethrpc.go b/bchain/coins/eth/ethrpc.go
index 89813487..158ee94f 100644
--- a/bchain/coins/eth/ethrpc.go
+++ b/bchain/coins/eth/ethrpc.go
@@ -74,6 +74,9 @@ func NewEthereumRPC(config json.RawMessage, pushHandler func(bchain.Notification
 	}
 
 	rc, ec, err := openRPC(c.RPCURL)
+	if err != nil {
+		return nil, err
+	}
 
 	s := &EthereumRPC{
 		BaseChain:   &bchain.BaseChain{},
@@ -384,6 +387,7 @@ func (b *EthereumRPC) getBestHeader() (*ethtypes.Header, error) {
 		defer cancel()
 		b.bestHeader, err = b.client.HeaderByNumber(ctx, nil)
 		if err != nil {
+			b.bestHeader = nil
 			return nil, err
 		}
 		b.bestHeaderTime = time.Now()