Unable to catch error from nodejs/ mongoose

You can get it easily by using Callbacks.

Ref:

• https://docs.nodejitsu.com/articles/getting-started/control-flow/what-are-callbacks/
• https://www.tutorialspoint.com/nodejs/nodejs_callbacks_concept.htm

Controller

controller.updatePlayer = async (req, res) => {    const { game_name, player_name, x, y, z } = req.body;    Game.getPlayerDetails(playerName, function(err, playerData) {        if (err) {            res.status(500).send(err);        } else {            Game.updateGame(game_name, playerData, function (err, updatedData) {                if (err) {                        res.status(500).send(err);                } else {                    res.status(200).send(updatedData)                }            });        }    });};

Model:

GamesModel.getPlayerDetails = (playerName, callback) => {    PlayersModel.findOne({name: playerName}, callback);}  // You can put below code in respective models and import them in controller and use.GamesModel.updateGame = (gameName, player) => {    GamesModel.findOneAndUpdate({ name: gameName, 'players._id': player._id },     { $set: { 'players.$' : { _id: player._id, x, y, z } } },    {          projection: { players: { '$elemMatch': { _id: player._id} } },        returnNewDocument: true    }, callback);}

Hope this helps you.