const { MongoClient } = require('mongodb');

(async() => {
  const client = await MongoClient.connect('mongodb://localhost/');
  const db = client.db('testvalidation' + Date.now());
  const coll = await db.createCollection('contacts', {
    validator: {
      $and: [
        { phone: { $type: "string" } },
        { email: { $regex: /@mongodb\.com$/ } },
        { status: { $in: [ "Unknown", "Incomplete" ] } }
      ]
    }
  });

  try {
    await coll.insertOne({ email: "test@mongodb.com", status: "Unknown" });
  } catch (err) {
    console.dir(err, { depth: Infinity }); // err.errInfo.details.clausesNotSatisfied is helpful error information
  }

  try {
    await coll.insertMany([{ email: "test@mongodb.com", status: "Unknown" }]);
  } catch (err) {
    console.dir(err, { depth: Infinity }); // that information is missing here
  }

  await client.close();
})();