LOGIN: Accessing by Username or Email

server/models/user.js

@@ -10,7 +10,9 @@ mongoose.Promise = global.Promise;
 
 mongoose.level = "F";
 // Resolving error Unknown modifier: $pushAll
-mongoose.plugin(schema => { schema.options.usePushEach = true });
+mongoose.plugin(schema => {
+  schema.options.usePushEach = true
+});
 
 mongoose.set('debug', process.env.DEBUG);
 
@@ -102,7 +104,9 @@ UserSchema.methods.generateAuthToken = function (req) {
   var date_login = new Date();
 
   // CANCELLA IL PRECEDENTE !
-  user.tokens = user.tokens.filter(function(tok) { return (tok.access !== access) || ((tok.access === access)  && (tok.browser !== browser) ) ; });
+  user.tokens = user.tokens.filter(function (tok) {
+    return (tok.access !== access) || ((tok.access === access) && (tok.browser !== browser));
+  });
   user.tokens.push({ access, browser, token, date_login });
 
   return user.save()
@@ -154,8 +158,15 @@ UserSchema.statics.findByCredentials = function (username, password) {
 
   return User.findOne({ username: username }).then((user) => {
     if (!user) {
-      return null;
+      // Check if with email:
+      return User.findOne({ email: username })
+    } else {
+      return user
     }
+  }).then(user => {
+    if (!user)
+      return null;
+
     pwd = user.password;
 
     return new Promise((resolve, reject) => {