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

A modern Apache Kafka client for node.js

const Decoder = require('../../../decoder')
const { parse: parseV0 } = require('../v0/response')

/**
 * v2 (supported in 0.10.0 or later)
 * ProduceResponse => [TopicName [Partition ErrorCode Offset Timestamp]] ThrottleTime
 *   TopicName => string
 *   Partition => int32
 *   ErrorCode => int16
 *   Offset => int64
 *   Timestamp => int64
 *   ThrottleTime => int32
 */

const partition = decoder => ({
  partition: decoder.readInt32(),
  errorCode: decoder.readInt16(),
  offset: decoder.readInt64().toString(),
  timestamp: decoder.readInt64().toString(),
})

const decode = async rawData => {
  const decoder = new Decoder(rawData)
  const topics = decoder.readArray(decoder => ({
    topicName: decoder.readString(),
    partitions: decoder.readArray(partition),
  }))

  const throttleTime = decoder.readInt32()

  return {
    topics,
    throttleTime,
  }
}

module.exports = {
  decode,
  parse: parseV0,
}