community-repo/joystream-api/scripts/export-data-directory.js

/* global api, hashing, keyring, types, util */

// run this script with:
// yarn script exportDataDirectory
//
// or copy and paste the code into the pioneer javascript toolbox at:
// https://testnet.joystream.org/#/js

const script = async ({ api, hashing, keyring, types, util }) => {
  const runtimeSpecVersion = api.runtimeVersion.specVersion

  const ownerAccountToMemberId = async (accountId) => {
    const memberIds = await api.query.members.memberIdsByRootAccountId(accountId)
    return memberIds[0] || null
  }

  const ids = await api.query.dataDirectory.knownContentIds()

  // When a BTreeMap is constructed for injection the node will fail to decode
  // it if its not sorted.
  ids.sort()

  let transformed = await Promise.all(ids.map(async (id) => {
    let obj = await api.query.dataDirectory.dataObjectByContentId(id)
    if (obj.isNone) { return null }
    obj = obj.unwrap()

    return [id, {
      owner: runtimeSpecVersion <= 15 ? await ownerAccountToMemberId(obj.owner) : obj.owner,
      added_at: obj.added_at,
      type_id: obj.type_id,
      size: obj.size_in_bytes,
      liaison: runtimeSpecVersion <= 15 ? new types.u64(0) : obj.liaison,
      liaison_judgement: obj.liaison_judgement,
      ipfs_content_id: obj.ipfs_content_id }]
  }))

  console.log(JSON.stringify(transformed))
  console.error(`Exported ${transformed.length} objects`)
}

if (typeof module === 'undefined') {
  // Pioneer js-toolbox
  script({ api, hashing, keyring, types, util })
} else {
  // Node
  module.exports = script
}