Resolvers for Movie schema

resolvers.js

movies: () => {
            return Movie.find()
            .then(movies => {
                return movies.map(movie => {
                    return { ...movie._doc, _id: movie._doc._id.toString()};        //overwriting id 
                });
            })
            .catch(err => {
                throw err;
            });
        },
        createMovie: (args) => {
            const movie = new Movie({
                title: args.movieInput.title,                
                year: +args.movieInput.year,
                released: args.movieInput.released,
                genre: args.movieInput.genre,
                director: args.movieInput.director,
                actors: args.movieInput.actors,
                plot: args.movieInput.plot,
                poster: args.movieInput.poster,
                imdbRating: +args.movieInput.imdbRating,
                language: args.movieInput.language,
                runtime: args.movieInput.runtime
            });
            return movie
            .save()
            .then(result => {
                console.log(result);
                return {...result._doc, _id: result._doc._id.toString()};        // spread operator. _doc is provided by mongoose to get our properties and not meta data
            }).catch(err => {
                console.log(err);
                throw err;
            });
        }