@platformatic/kafka
Version:
Modern and performant client for Apache Kafka
69 lines (68 loc) • 2.56 kB
JavaScript
import { ResponseError } from "../../errors.js";
import { Writer } from "../../protocol/writer.js";
import { createAPI } from "../definitions.js";
/*
ListOffsets Request (Version: 8) => replica_id isolation_level [topics] TAG_BUFFER
replica_id => INT32
isolation_level => INT8
topics => name [partitions] TAG_BUFFER
name => COMPACT_STRING
partitions => partition_index current_leader_epoch timestamp TAG_BUFFER
partition_index => INT32
current_leader_epoch => INT32
timestamp => INT64
*/
export function createRequest(replica, isolationLevel, topics) {
return Writer.create()
.appendInt32(replica)
.appendInt8(isolationLevel)
.appendArray(topics, (w, topic) => {
w.appendString(topic.name).appendArray(topic.partitions, (w, partition) => {
w.appendInt32(partition.partitionIndex)
.appendInt32(partition.currentLeaderEpoch)
.appendInt64(partition.timestamp);
});
})
.appendTaggedFields();
}
/*
ListOffsets Response (Version: 8) => throttle_time_ms [topics] TAG_BUFFER
throttle_time_ms => INT32
topics => name [partitions] TAG_BUFFER
name => COMPACT_STRING
partitions => partition_index error_code timestamp offset leader_epoch TAG_BUFFER
partition_index => INT32
error_code => INT16
timestamp => INT64
offset => INT64
leader_epoch => INT32
*/
export function parseResponse(_correlationId, apiKey, apiVersion, reader) {
const errors = [];
const response = {
throttleTimeMs: reader.readInt32(),
topics: reader.readArray((r, i) => {
return {
name: r.readString(),
partitions: r.readArray((r, j) => {
const partition = {
partitionIndex: r.readInt32(),
errorCode: r.readInt16(),
timestamp: r.readInt64(),
offset: r.readInt64(),
leaderEpoch: r.readInt32()
};
if (partition.errorCode !== 0) {
errors.push([`/topics/${i}/partitions/${j}`, partition.errorCode]);
}
return partition;
})
};
})
};
if (errors.length) {
throw new ResponseError(apiKey, apiVersion, Object.fromEntries(errors), response);
}
return response;
}
export const api = createAPI(2, 8, createRequest, parseResponse);