google/ pubsub /v1/pubsub.proto在/protos中找不到

Question

我试图从firebase云函数发布一条json消息到发布子主题，我使用的是pubsubVersion0.19.0。

我得到了这个错误：

google/pubsub/v1/pubsub.proto could not be found in /protos
    at Function.GrpcClient._resolveFile (/srv/node_modules/google-gax/lib/grpc.js:174:9)
    at GrpcClient.loadProto (/srv/node_modules/google-gax/lib/grpc.js:162:33)
    at new PublisherClient (/srv/index.js:6842:15)
    at PubSub../node_modules/@google-cloud/pubsub/src/index.js.PubSub.getClient_ (/srv/index.js:3985:17)
    at PubSub../node_modules/@google-cloud/pubsub/src/index.js.PubSub.request (/srv/index.js:4006:8)
    at Publisher../node_modules/@google-cloud/pubsub/src/publisher.js.Publisher.publish_ (/srv/index.js:4404:14)
    at ontimeout (timers.js:482:11)
    at tryOnTimeout (timers.js:317:5)
    at Timer.listOnTimeout (timers.js:277:5)

这是我的代码：

const pubsub = new PubSub();
const topic = pubsub.topic(PUBSUB_TOPIC_NAME);
const publisher = topic.publisher();
const dataBuffer = Buffer.from(JSON.stringify(req.body));
publisher
.publish(dataBuffer)
.then(messageId => {
  console.log(`Message ${messageId} published.`);
  res.status(200).send('Message published.');
})
.catch(err => {
  console.error('ERROR:', err);
  res.status(500).send(err);
  return Promise.reject(err);
});

Answer 1

通过安装protos库可以解决此错误：

pip install -U googleapis-common-protos

注意:您正在使用的Pub/Sub版本是旧的。当前版本是0.39.0。更新：pip install -U google-cloud-pubsub