mongoose-map.js

mongoose-map.js

var mongoose = require('mongoose');
var getTestConnection = require('./getTestConnection.js');

var UserSchema = new mongoose.Schema({
    name: { type: String, required: true },
    notes: {
      type: Map,
      of: String,
      default: {},
    }
  },
);

async function main() {
  await getTestConnection();
  var User = mongoose.model('users', UserSchema);
  await User.deleteMany();
  let users = ['mary', 'alice', 'bob', 'bill'].map(async (n) => {
    let user = new User({name: n});
    await user.save();
    return user;
  });
  users = await Promise.all(users);
  console.log(users);
  let mary = await User.findOne({name: 'mary'});
  mary.notes.set(String(users[1].id), 'loser');
  mary.notes.set(String(users[2].id), 'winner');
  await mary.save()
  console.log(mary);
  console.log(mary.notes.keys());
  console.log('Done');
}

main()
.then(() => process.exit())
.catch((err) => { console.log(err); console.log('Exiting..'); process.exit() });

/**
> db.users.find()[0]
{
	"_id" : ObjectId("5e4b599af2ff2912f956a456"),
	"notes" : {
		"5e4b599af2ff2912f956a457" : "loser",
		"5e4b599af2ff2912f956a458" : "winner"
	},
	"name" : "mary",
	"__v" : 0
}
> db.users.find()[0].notes instanceof Object
true
* /