Migrate Contentful entry and it's child entries from environment to another

migrate-contentful-entry.ts

import { createClient } from 'contentful-management'
import contentfulExport, { Options } from 'contentful-export'
//@ts-ignore
import contentfulImport from 'contentful-import'

// This code was based on Hany Darwish's solution: https://github.com/contentful/contentful-cli/issues/614#issuecomment-955794191

// MODIFY THESE VALUES BEFORE RUNNING
//
// Run like this ts-node --project migrate-entry-tsconfig.json migrate-contentful-entry.ts

const SPACE_ID = 'SPACE ID HERE'
const MANAGEMENT_TOKEN = 'TOKEN HERE'
const SOURCE_ENV_ID = 'dev'
const TARGET_ENV_ID = 'test'
const ENTRY_ID = 'ENTRY TO MIGRATE'
const CONTENT_FILE_URL = 'export.json'
const maxDepth = 10

const options: Options = {
  spaceId: SPACE_ID,
  environmentId: SOURCE_ENV_ID,
  managementToken: MANAGEMENT_TOKEN,
  contentFile: CONTENT_FILE_URL,
  contentOnly: true,
  downloadAssets: false,
  skipContent: false,
  skipRoles: true,
  skipWebhooks: true,
}

async function importEntries() {
  const importOptions = {
    contentFile: CONTENT_FILE_URL,
    spaceId: SPACE_ID,
    managementToken: MANAGEMENT_TOKEN,
    environmentId: TARGET_ENV_ID,
  }
  await contentfulImport(importOptions)
}

async function main() {
  const client = createClient({
    accessToken: options.managementToken,
  })

  const space = await client.getSpace(options.spaceId)
  const environment = await space.getEnvironment(SOURCE_ENV_ID)
  const entryReferences = await environment.getEntryReferences(ENTRY_ID, {
    include: maxDepth,
  })
  const entries =
    entryReferences.includes?.Entry?.map((e) => e.sys.id).join(',') || ''
  const assets =
    entryReferences.includes?.Asset?.map((e) => e.sys.id).join(',') || ''

  options.queryEntries = [`sys.id[in]=${ENTRY_ID},${entries}`]
  options.queryAssets = [`sys.id[in]=${assets}`]

  await contentfulExport(options)
  await importEntries()
}

main()
  .then(() => process.exit(0))
  .catch((err) => {
    console.log(err)
    process.exit(1)
  })

migrate-entry-tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "allowJs": true,
    "skipLibCheck": true,
    "strict": true,
    "noEmit": true,
    "esModuleInterop": true,
    "noUnusedParameters": true,
    "noUnusedLocals": true
  },
  "include": ["migrate-contentful-entry.ts"],
  "exclude": ["node_modules"]
}