@platformatic/kafka
Version:
Modern and performant client for Apache Kafka
66 lines (65 loc) • 2.4 kB
JavaScript
import { ResponseError } from "../../errors.js";
import { Writer } from "../../protocol/writer.js";
import { createAPI } from "../definitions.js";
/*
OffsetForLeaderEpoch Request (Version: 4) => replica_id [topic] TAG_BUFFER
replica_id => INT32
topic => topic [partitions] TAG_BUFFER
topic => COMPACT_STRING
partitions => partition current_leader_epoch leader_epoch TAG_BUFFER
partition => INT32
current_leader_epoch => INT32
leader_epoch => INT32
*/
export function createRequest(replicaId, topics) {
return Writer.create()
.appendInt32(replicaId)
.appendArray(topics, (w, topic) => {
w.appendString(topic.name).appendArray(topic.partitions, (w, partition) => {
w.appendInt32(partition.partitionIndex)
.appendInt32(partition.currentLeaderEpoch)
.appendInt32(partition.leaderEpoch);
});
})
.appendTaggedFields();
}
/*
OffsetForLeaderEpoch Response (Version: 4) => throttle_time_ms [topics] TAG_BUFFER
throttle_time_ms => INT32
topics => topic [partitions] TAG_BUFFER
topic => COMPACT_STRING
partitions => partition error_code leader_epoch end_offset TAG_BUFFER
partition => INT32
error_code => INT16
leader_epoch => INT32
end_offset => INT64
*/
export function parseResponse(_correlationId, apiKey, apiVersion, reader) {
const errors = [];
const response = {
throttleTimeMs: reader.readInt32(),
topics: reader.readArray((r, i) => {
return {
topic: r.readString(),
partitions: r.readArray((r, j) => {
const partition = r.readInt32();
const errorCode = r.readInt16();
if (errorCode !== 0) {
errors.push([`/topics/${i}/partitions/${j}`, errorCode]);
}
return {
partition,
errorCode,
leaderEpoch: r.readInt32(),
endOffset: r.readInt64()
};
})
};
})
};
if (errors.length) {
throw new ResponseError(apiKey, apiVersion, Object.fromEntries(errors), response);
}
return response;
}
export const api = createAPI(23, 4, createRequest, parseResponse);