kafka-ts/dist/producer/producer-state.js

**KafkaTS** is a Apache Kafka client library for Node.js. It provides both a low-level API for communicating directly with the Apache Kafka cluster and high-level APIs for publishing and subscribing to Kafka topics.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ProducerState = void 0;
const api_1 = require("../api");
class ProducerState {
    options;
    producerId = 0n;
    producerEpoch = 0;
    sequences = {};
    constructor(options) {
        this.options = options;
    }
    async initProducerId() {
        const result = await this.options.cluster.sendRequest(api_1.API.INIT_PRODUCER_ID, {
            transactionalId: null,
            transactionTimeoutMs: 0,
            producerId: this.producerId,
            producerEpoch: this.producerEpoch,
        });
        this.producerId = result.producerId;
        this.producerEpoch = result.producerEpoch;
        this.sequences = {};
    }
    getSequence(topic, partition) {
        return this.sequences[topic]?.[partition] ?? 0;
    }
    updateSequence(topic, partition, messagesCount) {
        this.sequences[topic] ??= {};
        this.sequences[topic][partition] ??= 0;
        this.sequences[topic][partition] += messagesCount;
    }
}
exports.ProducerState = ProducerState;