@robot.com/better-mqtt/mock.js

A modern, TypeScript-first MQTT client library that provides a better developer experience with async iterators, shared subscriptions, and React hooks. Better MQTT is a wrapper around the excellent [mqtt.js](https://github.com/mqttjs/MQTT.js) library, enh

// src/mock.ts
import { EventEmitter } from "ee-ts";
function stringParser(message) {
  return message.toString("utf8");
}
function jsonParser(message) {
  return JSON.parse(message.toString("utf8"));
}
function binaryParser(message) {
  return message;
}
var Subscription = class extends EventEmitter {
  topic;
  parser;
  constructor(opts) {
    super();
    this.topic = opts.topic;
    this.parser = opts.parser;
  }
  handleMessage(_message, _topic, _params) {
  }
  async *[Symbol.asyncIterator]() {
  }
  end() {
    this.emit("end");
  }
};
var BetterMQTT = class _BetterMQTT extends EventEmitter {
  client = new EventEmitter();
  error = null;
  get status() {
    return "offline";
  }
  publish(_topic, _message, _opts) {
  }
  async publishAsync(_topic, _message) {
    return Promise.resolve();
  }
  publishJson(_topic, _message) {
  }
  async publishJsonAsync(_topic, _message) {
    return Promise.resolve();
  }
  unsubscribe(_sub) {
  }
  subscribe(topic, parser) {
    return new Subscription({ mqtt: this, topic, parser });
  }
  subscribeString(topic) {
    return this.subscribe(topic, stringParser);
  }
  subscribeJson(topic) {
    return this.subscribe(topic, jsonParser);
  }
  subscribeBinary(topic) {
    return this.subscribe(topic, binaryParser);
  }
  async subscribeAsync(topic, parser) {
    return Promise.resolve(
      new Subscription({ mqtt: this, topic, parser })
    );
  }
  async subscribeStringAsync(topic) {
    return this.subscribeAsync(topic, stringParser);
  }
  async subscribeJsonAsync(topic) {
    return this.subscribeAsync(topic, jsonParser);
  }
  async subscribeBinaryAsync(topic) {
    return this.subscribeAsync(topic, binaryParser);
  }
  static async connectAsync(..._args) {
    return Promise.resolve(new _BetterMQTT());
  }
  static connect(..._args) {
    return new _BetterMQTT();
  }
  end() {
    this.emit("end");
  }
};
export {
  BetterMQTT,
  Subscription,
  binaryParser,
  jsonParser,
  stringParser
};
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