@platformatic/kafka
Version:
Modern and performant client for Apache Kafka
93 lines (92 loc) • 3.75 kB
JavaScript
import { ResponseError } from "../../errors.js";
import { Writer } from "../../protocol/writer.js";
import { createAPI } from "../definitions.js";
/*
Metadata Request (Version: 12) => [topics] allow_auto_topic_creation include_topic_authorized_operations TAG_BUFFER
topics => topic_id name TAG_BUFFER
topic_id => UUID
name => COMPACT_NULLABLE_STRING
allow_auto_topic_creation => BOOLEAN
include_topic_authorized_operations => BOOLEAN
*/
export function createRequest(topics, allowAutoTopicCreation = false, includeTopicAuthorizedOperations = false) {
return Writer.create()
.appendArray(topics, (w, topic) => w.appendUUID(null).appendString(topic))
.appendBoolean(allowAutoTopicCreation)
.appendBoolean(includeTopicAuthorizedOperations)
.appendTaggedFields();
}
/*
Metadata Response (Version: 12) => throttle_time_ms [brokers] cluster_id controller_id [topics] TAG_BUFFER
throttle_time_ms => INT32
brokers => node_id host port rack TAG_BUFFER
node_id => INT32
host => COMPACT_STRING
port => INT32
rack => COMPACT_NULLABLE_STRING
cluster_id => COMPACT_NULLABLE_STRING
controller_id => INT32
topics => error_code name topic_id is_internal [partitions] topic_authorized_operations TAG_BUFFER
error_code => INT16
name => COMPACT_NULLABLE_STRING
topic_id => UUID
is_internal => BOOLEAN
partitions => error_code partition_index leader_id leader_epoch [replica_nodes] [isr_nodes] [offline_replicas] TAG_BUFFER
error_code => INT16
partition_index => INT32
leader_id => INT32
leader_epoch => INT32
replica_nodes => INT32
isr_nodes => INT32
offline_replicas => INT32
topic_authorized_operations => INT32
*/
export function parseResponse(_correlationId, apiKey, apiVersion, reader) {
const errors = [];
const response = {
throttleTimeMs: reader.readInt32(),
brokers: reader.readArray(r => {
return {
nodeId: r.readInt32(),
host: r.readString(),
port: r.readInt32(),
rack: r.readNullableString()
};
}),
clusterId: reader.readNullableString(),
controllerId: reader.readInt32(),
topics: reader.readArray((r, i) => {
const errorCode = r.readInt16();
if (errorCode !== 0) {
errors.push([`/topics/${i}`, errorCode]);
}
return {
errorCode,
name: r.readNullableString(),
topicId: r.readUUID(),
isInternal: r.readBoolean(),
partitions: r.readArray((r, j) => {
const errorCode = r.readInt16();
if (errorCode !== 0) {
errors.push([`/topics/${i}/partitions/${j}`, errorCode]);
}
return {
errorCode,
partitionIndex: r.readInt32(),
leaderId: r.readInt32(),
leaderEpoch: r.readInt32(),
replicaNodes: r.readArray(() => r.readInt32(), true, false),
isrNodes: r.readArray(() => r.readInt32(), true, false),
offlineReplicas: r.readArray(() => r.readInt32(), true, false)
};
}),
topicAuthorizedOperations: reader.readInt32()
};
})
};
if (errors.length) {
throw new ResponseError(apiKey, apiVersion, Object.fromEntries(errors), response);
}
return response;
}
export const api = createAPI(3, 12, createRequest, parseResponse);