Step 12.20: Allow location message type on server side

Author: dotansimha

api/server/methods.ts

@@ -70,7 +70,7 @@ Meteor.methods({
     if (!this.userId) throw new Meteor.Error('unauthorized',
       'User must be logged-in to create a new chat');
 
-    check(type, Match.OneOf(String, [ MessageType.TEXT ]));
+    check(type, Match.OneOf(String, [ MessageType.TEXT, MessageType.LOCATION ]));
     check(chatId, nonEmptyString);
     check(content, nonEmptyString);