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@dtu-olp-2024/kafka-nocobase

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A NocoBase plugin for Apache Kafka integration, supporting message publishing, topic management, and event-driven workflows. Built for the DTU GreenHope project.

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/** * This file is part of the NocoBase (R) project. * Copyright (c) 2020-2024 NocoBase Co., Ltd. * Authors: NocoBase Team. * * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License. * For more information, please refer to: https://www.nocobase.com/agreement. */ var __defProp = Object.defineProperty; var __getOwnPropDesc = Object.getOwnPropertyDescriptor; var __getOwnPropNames = Object.getOwnPropertyNames; var __hasOwnProp = Object.prototype.hasOwnProperty; var __export = (target, all) => { for (var name in all) __defProp(target, name, { get: all[name], enumerable: true }); }; var __copyProps = (to, from, except, desc) => { if (from && typeof from === "object" || typeof from === "function") { for (let key of __getOwnPropNames(from)) if (!__hasOwnProp.call(to, key) && key !== except) __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable }); } return to; }; var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod); var eventListener_exports = {}; __export(eventListener_exports, { KafkaEventListener: () => KafkaEventListener }); module.exports = __toCommonJS(eventListener_exports); var import_handler = require("./handler"); class KafkaEventListener { producer; consumer; constructor(producer, consumer) { this.producer = producer; this.consumer = consumer; } async initializeTopics(topics, appInstance) { try { await this.consumer.subscribe({ topics }); await this.consumer.run({ eachMessage: async ({ topic, partition, message }) => { try { const handler = import_handler.topicHandlers[topic]; const messageValue = message.value ? Buffer.from(message.value).toString("utf8") : null; if (messageValue) { try { const parsedMessage = JSON == null ? void 0 : JSON.parse(messageValue); await handler(parsedMessage, appInstance); } catch (jsonError) { console.error("Error parsing JSON:", jsonError); } } } catch (error) { console.error( `Error processing message from topic ${topic}:`, error ); } } }); } catch (error) { console.error("Failed to initialize topics:", error); throw error; } } async emit(topic, message) { try { await this.producer.send({ topic, messages: [ { value: JSON.stringify(message) } ] }); } catch (error) { console.error(`Failed to emit message to topic ${topic}:`, error); throw error; } } } // Annotate the CommonJS export names for ESM import in node: 0 && (module.exports = { KafkaEventListener });