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

void async function main() {
  const client = await MongoClient.connect('mongodb://localhost:27017/test');

  const p1 = client.db().createCollection('User', {
    timeseries: {
      timeField: 'timestamp',
      metaField: 'metadata',
      granularity: 'hours',
    }
  });

  await new Promise(resolve => setTimeout(resolve, 0));

  const p2 = client.db().collection('User').insertMany([{ name: 'test' }]);

  await Promise.all([p1, p2]);
  console.log(await client.db().listCollections().toArray());
}();

/home/val/Workspace/MongoDB/mongoose/node_modules/mongodb/lib/cmap/connection.js:210
                    callback(new error_1.MongoServerError(document));
                             ^

MongoServerError: Cannot create collection test.User - collection already exists.
    at Connection.onMessage (/home/val/Workspace/MongoDB/mongoose/node_modules/mongodb/lib/cmap/connection.js:210:30)