.post(function (req, res) {
            var planet = new Planet(req.body);
            Planet.find({name: planet.name}, function (err, planet) {
                if (err) {
                    res.status(500).send(err);
                }
                if (planet == '') {
                    console.log("action: planet not found");
                    //download data from swapi here
                    // planet.save();
                } else {
                    //send data back
                    console.log("action: planet found");
                    res.status(201).send(planet);
                }
            })
        })