Firebase PubSub 模拟器不接收消息

Question

我正在尝试获取 firebase 模拟器，以使用 pubsub 发布来触发云功能。基本设置在云功能之外工作。尝试连接云功能时，没有任何消息出现。

我有一种感觉，我做了一些根本性的错误。

发布代码：

import { PubSub, Topic } from '@google-cloud/pubsub'; 
const topicName = 'MyTopic';
const [taskTopic] = await pubsub.createTopic(topicName);
await this.taskTopic.publish(Buffer.from(msg));

“手册”订阅：作品

 [subscription] = await this.renderTaskTopic.createSubscription(subscriptionName);
 subscription.on('message', (message) => {
    console.log('Received message:', message.data.toString());
    process.exit(0);
 });

使用云函数订阅：永远不会在模拟器中调用


export const subscribeToRenderTask = functions.pubsub.topic(topicName)
    .onPublish(async (message: functions.pubsub.Message) => {
        console.log('subscribeToRenderTask', message.data);
     }

emulator 设置似乎不错

 functions: The Firebase Authentication emulator is not running, so calls to Firebase Authentication will affect production.
✔  functions[convert]: http function initialized (http://0.0.0.0:5001/puredio-development/europe-west3/convert).
✔  functions[subscribeToRenderTask]: pubsub function initialized.

┌─────────────────────────────────────────────────────────────┐
│ ✔  All emulators ready! It is now safe to connect your app. │
│ i  View Emulator UI at http://0.0.0.0:8081                  │
└─────────────────────────────────────────────────────────────┘

┌───────────┬────────────────┬───────────────────────────────┐
│ Emulator  │ Host:Port      │ View in Emulator UI           │
├───────────┼────────────────┼───────────────────────────────┤
│ Functions │ 0.0.0.0:5001   │ http://0.0.0.0:8081/functions │
├───────────┼────────────────┼───────────────────────────────┤
│ Firestore │ 0.0.0.0:8080   │ http://0.0.0.0:8081/firestore │
├───────────┼────────────────┼───────────────────────────────┤
│ Pub/Sub   │ 127.0.0.1:8085 │ n/a                           │
└───────────┴────────────────┴───────────────────────────────┘
  Emulator Hub running at 127.0.0.1:4400
  Other reserved ports: 4500

Answer 1

RTFM：我需要设置以下环境变量，这样我的测试才能真正找到 pub sub 模拟器

export PUBSUB_EMULATOR_HOST = 'localhost:8085'
export PUBSUB_PROJECT_ID = 'my-project'

Firebase PubSub 模拟器不接收消息

Firebase PubSub Emulator not recieving messages

node.js

google-cloud-pubsub

firebase-tools

google-cloud-functions