mongodb instert document javascript

gistfile1.txt

const MongoClient = require('mongodb').MongoClient; // eslint-disable-line import/no-extraneous-dependencies

// Database Name
const dbName = 'demo';

(async () => {
  const client = await MongoClient.connect(
    'mongodb://mongouser:mongopass@localhost:27017/demo?authSource=demo'
  );
  console.log('Connected successfully to server'); // eslint-disable-line no-console

  const db = client.db(dbName);

  const collection = db.collection('test');
  const doc1 = { hello: 'doc1' };
  const doc2 = { hello: 'doc2' };
  const lotsOfDocs = [{ hello: 'doc3' }, { hello: 'doc4' }];
  collection.insert(doc1);
  collection.insert(doc2, { w: 1 }); // callback: function(err, result) {}
  collection.insert(lotsOfDocs, { w: 1 });
  client.close();
  return;
})();