//RedirectionRequest is an entity within my application

setInterval(function(){
    var groupedRedirectionRequests = RedirectionRequest.map(
        function(){emit(this.shortUrl, 1);}
        ).reduce(
        function(k, values){var sum = 0; for(var v in values){sum += values[v];} return sum;}
    ).select();
    websocket.sendMessageToAllUsers(JSON.stringify(groupedRedirectionRequests));
}, 1000);