overleaf/services/web/migrations/20210407085118_token-expiry-with-ttl-index.js

const Helpers = require('./lib/helpers')

exports.tags = ['server-ce', 'server-pro', 'saas']

const indexes = {
  tokens: [
    {
      // expire all tokens 90 days after they are created
      expireAfterSeconds: 90 * 24 * 60 * 60,
      key: {
        createdAt: 1,
      },
      name: 'createdAt_1',
    },
  ],
}

exports.migrate = async client => {
  const { db } = client

  await Promise.all(
    Object.keys(indexes).map(key =>
      Helpers.addIndexesToCollection(db[key], indexes[key])
    )
  )
}

exports.rollback = async client => {
  const { db } = client

  await Promise.all(
    Object.keys(indexes).map(key =>
      Helpers.dropIndexesFromCollection(db[key], indexes[key])
    )
  )
}