Query Service Does not work when I want to display list based on query.
When you use DB Login service it returns user session key in sessionToken request parameter. If you save sessionToken into localStorage variable and then pass it into all REST services in "X-Appery-Session-Token" request parameter our server sends requests to DB from logged user.
This way server filters collection records which are available only for logged user. To retrieve all records you need to add to request Header Request Parameter "X-Appery-Master-Key" (value for this parameter you can find on Settings tab of specific DB)
More information is here