better insight error handling

lib/blockchainexplorer.js

@@ -32,7 +32,7 @@ function BlockChainExplorer(opts) {
         url: url
       });
     default:
-      throw new Error('Provider ' + provider + ' not supperted.');
+      throw new Error('Provider ' + provider + ' not supported.');
   };
 };
 

lib/blockchainexplorers/insight.js

@@ -16,6 +16,15 @@ function Insight(opts) {
   this.url = opts.url;
 };
 
+
+var _parseErr = function(err, res) {
+  if (err) {
+    return "Insight Error";
+  }
+  log.warn("Insight " + res.request.href  + " Returned Status: " + res.statusCode);
+  return "Error querying the blockchain";
+};
+
 Insight.prototype.getConnectionInfo = function() {
   return 'Insight (' + this.network + ') @ ' + this.url;
 };
@@ -34,7 +43,7 @@ Insight.prototype.getUnspentUtxos = function(addresses, cb) {
   };
 
   request(args, function(err, res, unspent) {
-    if (err || res.statusCode !== 200) return cb(err || res);
+    if (err || res.statusCode !== 200) return cb(_parseErr(err,res));
     return cb(null, unspent);
   });
 };
@@ -53,7 +62,7 @@ Insight.prototype.broadcast = function(rawTx, cb) {
   };
 
   request(args, function(err, res, body) {
-    if (err || res.statusCode !== 200) return cb(err || res);
+    if (err || res.statusCode !== 200) return cb(_parseErr(err,res));
     return cb(null, body ? body.txid : null);
   });
 };
@@ -66,7 +75,7 @@ Insight.prototype.getTransaction = function(txid, cb) {
   };
 
   request(args, function(err, res, tx) {
-    if (err || res.statusCode != 200) return cb(err || res);
+    if (err || res.statusCode !== 200) return cb(_parseErr(err,res));
     return cb(null, tx);
   });
 };
@@ -86,7 +95,7 @@ Insight.prototype.getTransactions = function(addresses, from, to, cb) {
   };
 
   request(args, function(err, res, txs) {
-    if (err || res.statusCode != 200) return cb(err || res);
+    if (err || res.statusCode !== 200) return cb(_parseErr(err,res));
 
     if (_.isObject(txs) && txs.items)
       txs = txs.items;
@@ -117,7 +126,7 @@ Insight.prototype.estimateFee = function(nbBlocks, cb) {
     json: true,
   };
   request(args, function(err, res, body) {
-    if (err || res.statusCode !== 200) return cb(err || res);
+    if (err || res.statusCode !== 200) return cb(_parseErr(err,res));
     return cb(null, body);
   });
 };

lib/expressapp.js

@@ -78,15 +78,16 @@ ExpressApp.prototype.start = function(opts, cb) {
         message: err.message,
       }).end();
     } else {
-      var code, message;
+      var code = 500, message;
       if (_.isObject(err)) {
         code = err.code || err.statusCode;
         message = err.message || err.body;
       }
+
       var m = message || err.toString();
 
       if (!opts.disableLogs)
-        log.error('Err: ' + req.url + ' :' + code + ':' + m);
+        log.error(req.url + ' :' + code + ':' + m);
 
       res.status(code || 500).json({
         error: m,