@platformatic/kafka
Version:
Modern and performant client for Apache Kafka
51 lines (50 loc) • 1.8 kB
JavaScript
import { ResponseError } from "../../errors.js";
import { Writer } from "../../protocol/writer.js";
import { createAPI } from "../definitions.js";
/*
FindCoordinator Request (Version: 4) => key_type [coordinator_keys] TAG_BUFFER
key_type => INT8
coordinator_keys => COMPACT_STRING
*/
export function createRequest(keyType, coordinatorKeys) {
return Writer.create()
.appendInt8(keyType)
.appendArray(coordinatorKeys, (w, k) => w.appendString(k), true, false)
.appendTaggedFields();
}
/*
FindCoordinator Response (Version: 4) => throttle_time_ms [coordinators] TAG_BUFFER
throttle_time_ms => INT32
coordinators => key node_id host port error_code error_message TAG_BUFFER
key => COMPACT_STRING
node_id => INT32
host => COMPACT_STRING
port => INT32
error_code => INT16
error_message => COMPACT_NULLABLE_STRING
*/
export function parseResponse(_correlationId, apiKey, apiVersion, reader) {
const errors = [];
const response = {
throttleTimeMs: reader.readInt32(),
coordinators: reader.readArray((r, i) => {
const coordinator = {
key: r.readString(),
nodeId: r.readInt32(),
host: r.readString(),
port: r.readInt32(),
errorCode: r.readInt16(),
errorMessage: r.readNullableString()
};
if (coordinator.errorCode !== 0) {
errors.push([`/coordinators/${i}`, coordinator.errorCode]);
}
return coordinator;
})
};
if (errors.length) {
throw new ResponseError(apiKey, apiVersion, Object.fromEntries(errors), response);
}
return response;
}
export const api = createAPI(10, 4, createRequest, parseResponse);