export privKeys in WIF

lib/client/credentials.js

@@ -123,7 +123,10 @@ Credentials.prototype.exportCompressed = function() {
   var self = this;
 
   var values = _.map(EXPORTABLE_FIELDS, function(field) {
-    if ((field == 'xPubKey' || field == 'requestPrivKey') && self.canSign()) return;
+    if ((field == 'xPubKey' || field == 'requestPrivKey') && self.canSign()) return '';
+    if (field == 'requestPrivKey') {
+      return Bitcore.PrivateKey.fromString(self.requestPrivKey).toWIF();
+    }
     if (field == 'publicKeyRing') {
       return _.without(self.publicKeyRing, self.xPubKey);
     }

test/integration/client.js

@@ -915,9 +915,13 @@ describe('client API ', function() {
       importedClient.credentials.copayerName.should.equal(copayerName);
     });
     it('should export & import encrypted', function() {
+      var xPrivKey = clients[0].credentials.xPrivKey;
+      should.exist(xPrivKey);
+
       var exported = clients[0].export({
         password: '123'
       });
+      exported.should.not.contain(xPrivKey);
 
       importedClient = new Client({
         request: helpers.getRequest(app),
@@ -925,6 +929,8 @@ describe('client API ', function() {
       importedClient.import(exported, {
         password: '123'
       });
+      should.exist(importedClient.credentials.xPrivKey);
+      importedClient.credentials.xPrivKey.should.equal(xPrivKey);
     });
     it('should export & import compressed & encrypted', function() {
       var exported = clients[0].export({