fix: test_ethereum_url

Author: blockchainluffy

shutter/scripts/configure_keyper.sh

@@ -17,7 +17,7 @@ function test_ethereum_url() {
     RESULT=$(wscat -c "$SHUTTER_NETWORK_NODE_ETHEREUMURL" -x '{"jsonrpc": "2.0", "method": "eth_syncing", "params": [], "id": 1}')
     if [[ $RESULT =~ '"id":1' ]]; then return 0; else
         export SHUTTER_NETWORK_NODE_ETHEREUMURL=ws://execution.${NETWORK}.dncore.dappnode:8545
-        RESULT=$(wscat -c "" -x '{"jsonrpc": "2.0", "method": "eth_syncing", "params": [], "id": 1}')
+        RESULT=$(wscat -c "$SHUTTER_NETWORK_NODE_ETHEREUMURL" -x '{"jsonrpc": "2.0", "method": "eth_syncing", "params": [], "id": 1}')
         if [[ $RESULT =~ '"id":1' ]]; then return 0; else
             echo "Could not find DAppNode RPC/WS url for this package!"
             echo "Please configure 'ETHEREUM_WS' to point to an applicable websocket RPC service."