Delete all data from database -MEAN application

I want to delete all data in my database by a single click.but it gives "DELETE http://localhost:8080/api/deleteAll 404 (Not Found)".

can anyone help with this?

Below codes are my attempt.

Controller

$scope.deleteAllData = function () {
Event.deleteAll()
.success(function(){
console.log("All Deleted");
})
    .error(function (error) {
        $scope.status = 'Unable to load event data: ';
});

};

Service

  deleteAll : function() {
        return $http.delete('/api/deleteAll');
    },

Route

app.delete('/api/deleteAll', function(req, res) {

 filesReadUploads.remove({},function(err) {
        if (err) {
            console.log(err)
        } else {
            res.end('success');
        }
    });
 });

Thanks

via MSKP