如何利用React和Google Cloud构建可靠的云端应用

npx create-react-app cloud-app
cd cloud-app

npm install -g @google-cloud/sdk

gcloud init

npm install @google-cloud/storage

const { Storage } = require('@google-cloud/storage');
const storage = new Storage();
const bucketName = 'your-bucket-name';

const uploadFile = async (file) => {
  const blob = storage.bucket(bucketName).file(file.originalname);
  const blobStream = blob.createWriteStream();
  
  blobStream.on('error', (error) => {
    console.log(error);
  });
  
  blobStream.on('finish', () => {
    console.log('File uploaded successfully!');
  });
  
  blobStream.end(file.buffer);
};

npm install @google-cloud/pubsub

const { PubSub } = require('@google-cloud/pubsub');
const pubsub = new PubSub();
const topicName = 'your-topic-name';
const subscriptionName = 'your-subscription-name';

const createTopic = async () => {
  const [topic] = await pubsub.createTopic(topicName);
  console.log(`Topic ${topic.name} created.`);
};

const publishMessage = async (message) => {
  const dataBuffer = Buffer.from(message);
  const messageId = await pubsub.topic(topicName).publish(dataBuffer);
  console.log(`Message ${messageId} published.`);
};

const createSubscription = async () => {
  const [subscription] = await pubsub.topic(topicName).createSubscription(subscriptionName);
  console.log(`Subscription ${subscription.name} created.`);
};

const receiveMessage = async () => {
  const subscription = pubsub.subscription(subscriptionName);

  const messageHandler = (message) => {
    console.log(`Received message: ${message.data}`);
    // 处理消息
    message.ack();
  };

  subscription.on('message', messageHandler);
};