spv close connections fix

routes/shepherd/electrum/balance.js

@@ -13,7 +13,6 @@ module.exports = (shepherd) => {
             json.hasOwnProperty('confirmed') &&
             json.hasOwnProperty('unconfirmed')) {
           if (network === 'komodo') {
-            ecl.connect();
             ecl.blockchainAddressListunspent(req.query.address)
             .then((utxoList) => {              
               if (utxoList &&
@@ -81,6 +80,8 @@ module.exports = (shepherd) => {
                     res.end(JSON.stringify(successObj));
                   });
                 } else {
+                  ecl.close();
+                  
                   const successObj = {
                     msg: 'success',
                     result: {
@@ -98,6 +99,8 @@ module.exports = (shepherd) => {
                   res.end(JSON.stringify(successObj));
                 }
               } else {
+                ecl.close();
+                
                 const successObj = {
                   msg: 'success',
                   result: {
@@ -133,6 +136,8 @@ module.exports = (shepherd) => {
             res.end(JSON.stringify(successObj));
           }
         } else {
+          ecl.close();
+          
           const successObj = {
             msg: 'error',
             result: shepherd.CONNECTION_ERROR_OR_INCOMPLETE_DATA,

routes/shepherd/electrum/listunspent.js

@@ -26,6 +26,7 @@ module.exports = (shepherd) => {
                 }
 
                 if (!_utxo.length) { // no confirmed utxo
+                  ecl.close();
                   resolve('no valid utxo');
                 } else {
                   shepherd.Promise.all(_utxo.map((_utxoItem, index) => {
@@ -129,6 +130,7 @@ module.exports = (shepherd) => {
                   });
                 }
               } else {
+                ecl.close();
                 resolve('cant get current height');
               }
             });

routes/shepherd/electrum/merkle.js

@@ -83,13 +83,16 @@ module.exports = (shepherd) => {
                   resolve(false);
                 }
               } else {
+                ecl.close();
                 resolve(shepherd.CONNECTION_ERROR_OR_INCOMPLETE_DATA);
               }
             } else {
+              ecl.close();
               resolve(shepherd.CONNECTION_ERROR_OR_INCOMPLETE_DATA);
             }
           });
         } else {
+          ecl.close();
           resolve(shepherd.CONNECTION_ERROR_OR_INCOMPLETE_DATA);
         }
       });
@@ -118,7 +121,8 @@ module.exports = (shepherd) => {
           height,
           _filteredServerList,
           shepherd.electrumCoins[coin].server.ip + ':' + shepherd.electrumCoins[coin].server.port + ':' + shepherd.electrumServers[coin === 'KMD' || coin === 'komodo' ? 'komodo' : coin.toLowerCase()].proto
-        ).then((proof) => {
+        )
+        .then((proof) => {
           resolve(proof);
         });
       } else {

routes/shepherd/electrum/transactions.js

@@ -188,6 +188,8 @@ module.exports = (shepherd) => {
                   res.end(JSON.stringify(successObj));
                 });
               } else {
+                ecl.close();
+                
                 const successObj = {
                   msg: 'success',
                   result: [],