dynamodb-stream-elasticsearch/src/utils/table-name-from-arn.js

Missing blueprint for AWS Lambda. Reads stream from AWS DynamoDB and writes it to AWS ElasticSearch.

// Extracts the DynamoDB table from an ARN
module.exports = arn => {
  /** This is a default dynamo table arn
   *  arn:aws:dynamodb:eu-west-1:123456789012:table/table-name/stream/2015-11-13T09:23:17.104
   *  After split
   *  [
   *    'arn:aws:dynamodb:eu-west-1:123456789012:table',
   *    'table-name',
   *    'stream',
   *    '2015-11-13T09:23:17.104'
   *  ]
   */
  return arn.split('/')[1].toLowerCase()
}