⏱ Simple script to copy Algolia's settings, synonyms and rules from one index to all others in the same app.

algolia-settings-sync.js

/**
 * Script to copy Algolia's settings, synonyms and rules from one index to all others in the same application.
 */

import algoliasearch from 'algoliasearch'

const client = algoliasearch('APP_ID', 'ADMIN_API_KEY')
const sourceIndex = client.initIndex('SOURCE_INDEX_NAME')

const copySettings = async (source, target) => {
  // Exclude the replicas
  const { replicas, ...settings } = await source.getSettings()
  await target.setSettings(settings)
}

const copySynonyms = async (source, target) => {
  const synonyms = []
  
  await source.browseSynonyms({
    batch: batch => {
      batch.forEach(synonym => {
        synonyms.push(synonym)
      })
    },
  })

  await target.saveSynonyms(synonyms)
}

const copyRules = async (source, target) => {
  const rules = []

  await source.browseRules({
    batch: batch => {
      batch.forEach(synonym => {
        rules.push(synonym)
      })
    },
  })
  
  await target.saveRules(rules)
}
  
const run = async () => {
  try {
    // Get all indices and filter out the source one
    const { items } = await client.listIndices()
    const indices = items.map(item => item.name).filter(index => index !== sourceIndex.indexName)
    
    // For each index, copy settings, synonyms and rules
    for (const index of indices) {
      const targetIndex = client.initIndex(index)
      await copySettings(sourceIndex, targetIndex)
      await copySynonyms(sourceIndex, targetIndex)
      await copyRules(sourceIndex, targetIndex)
    }
  } catch (e) {
    console.error(e)
    process.exit(1)
  }
}

run()