list-databases.js

const FaunaCommand = require('../lib/fauna-command.js')
const { errorOut } = require('../lib/misc.js')
const faunadb = require('faunadb')
const q = faunadb.query

/**
 * Despite its name, returns the first 1000 databases defined.
 * "1000 databases ought to be enough for anybody".
 */
function allDatabasesQuery(q) {
  return q.Map(
    q.Paginate(q.Databases(null), { size: 1000 }),
    q.Lambda('x', q.Get(q.Var('x')))
  )
}

class ListDatabasesCommand extends FaunaCommand {
  async run() {
    const log = this.log
    return this.withClient(function (client, _) {
      log('listing databases')
      return client
        .query(allDatabasesQuery(q))
        .then(function (res) {
          if (res.data.length > 0) {
            res.data.forEach(function (el) {
              log(el.ref.id)
            })
          } else {
            log('No databases created')
          }
        })
        .catch(function (err) {
          errorOut(err.message)
        })
    })
  }
}

ListDatabasesCommand.description = `
Lists child databases in the current database
`

ListDatabasesCommand.examples = ['$ fauna list-databases']

ListDatabasesCommand.flags = {
  ...FaunaCommand.flags,
}

module.exports = ListDatabasesCommand