handle exceptions in express layer

lib/expressapp.js

@@ -151,7 +151,12 @@ ExpressApp.prototype.start = function(opts, cb) {
   // DEPRECATED
   router.post('/v1/wallets/', function(req, res) {
     logDeprecated(req);
-    var server = getServer(req, res);
+    var server;
+    try {
+      server = getServer(req, res);
+    } catch (ex) {
+      return returnError(ex, res, req);
+    }
     req.body.supportBIP44AndP2PKH = false;
     server.createWallet(req.body, function(err, walletId) {
       if (err) return returnError(err, res, req);
@@ -162,7 +167,12 @@ ExpressApp.prototype.start = function(opts, cb) {
   });
 
   router.post('/v2/wallets/', function(req, res) {
-    var server = getServer(req, res);
+    var server;
+    try {
+      server = getServer(req, res);
+    } catch (ex) {
+      return returnError(ex, res, req);
+    }
     server.createWallet(req.body, function(err, walletId) {
       if (err) return returnError(err, res, req);
       res.json({
@@ -173,7 +183,12 @@ ExpressApp.prototype.start = function(opts, cb) {
 
   router.put('/v1/copayers/:id/', function(req, res) {
     req.body.copayerId = req.params['id'];
-    var server = getServer(req, res);
+    var server;
+    try {
+      server = getServer(req, res);
+    } catch (ex) {
+      return returnError(ex, res, req);
+    }
     server.addAccess(req.body, function(err, result) {
       if (err) return returnError(err, res, req);
       res.json(result);
@@ -185,7 +200,12 @@ ExpressApp.prototype.start = function(opts, cb) {
     logDeprecated(req);
     req.body.walletId = req.params['id'];
     req.body.supportBIP44AndP2PKH = false;
-    var server = getServer(req, res);
+    var server;
+    try {
+      server = getServer(req, res);
+    } catch (ex) {
+      return returnError(ex, res, req);
+    }
     server.joinWallet(req.body, function(err, result) {
       if (err) return returnError(err, res, req);
 
@@ -195,7 +215,12 @@ ExpressApp.prototype.start = function(opts, cb) {
 
   router.post('/v2/wallets/:id/copayers/', function(req, res) {
     req.body.walletId = req.params['id'];
-    var server = getServer(req, res);
+    var server;
+    try {
+      server = getServer(req, res);
+    } catch (ex) {
+      return returnError(ex, res, req);
+    }
     server.joinWallet(req.body, function(err, result) {
       if (err) return returnError(err, res, req);
 
@@ -340,7 +365,12 @@ ExpressApp.prototype.start = function(opts, cb) {
     logDeprecated(req);
     var opts = {};
     if (req.query.network) opts.network = req.query.network;
-    var server = getServer(req, res);
+    var server;
+    try {
+      server = getServer(req, res);
+    } catch (ex) {
+      return returnError(ex, res, req);
+    }
     server.getFeeLevels(opts, function(err, feeLevels) {
       if (err) return returnError(err, res, req);
       _.each(feeLevels, function(feeLevel) {
@@ -354,7 +384,12 @@ ExpressApp.prototype.start = function(opts, cb) {
   router.get('/v2/feelevels/', function(req, res) {
     var opts = {};
     if (req.query.network) opts.network = req.query.network;
-    var server = getServer(req, res);
+    var server;
+    try {
+      server = getServer(req, res);
+    } catch (ex) {
+      return returnError(ex, res, req);
+    }
     server.getFeeLevels(opts, function(err, feeLevels) {
       if (err) return returnError(err, res, req);
       res.json(feeLevels);