kafkajs/src/protocol/requests/describeConfigs/v2/response.js

A modern Apache Kafka client for node.js

const { parse, decode: decodeV1 } = require('../v1/response')

/**
 * Starting in version 2, on quota violation, brokers send out responses before throttling.
 * @see https://cwiki.apache.org/confluence/display/KAFKA/KIP-219+-+Improve+quota+communication
 *
 * DescribeConfigs Response (Version: 2) => throttle_time_ms [resources]
 *   throttle_time_ms => INT32
 *   resources => error_code error_message resource_type resource_name [config_entries]
 *     error_code => INT16
 *     error_message => NULLABLE_STRING
 *     resource_type => INT8
 *     resource_name => STRING
 *     config_entries => config_name config_value read_only config_source is_sensitive [config_synonyms]
 *       config_name => STRING
 *       config_value => NULLABLE_STRING
 *       read_only => BOOLEAN
 *       config_source => INT8
 *       is_sensitive => BOOLEAN
 *       config_synonyms => config_name config_value config_source
 *         config_name => STRING
 *         config_value => NULLABLE_STRING
 *         config_source => INT8
 */

const decode = async rawData => {
  const decoded = await decodeV1(rawData)

  return {
    ...decoded,
    throttleTime: 0,
    clientSideThrottleTime: decoded.throttleTime,
  }
}

module.exports = {
  decode,
  parse,
}