如何在nodejs中对IBM对象存储执行CURD操作

npm install ibm-cos-sdk ibm-cloud-sdk

const IBMCloud = require('ibm-cloud-sdk');
const COS = require('ibm-cos-sdk');

const config = {
  endpoint: 's3.us.cloud-object-storage.appdomain.cloud',
  apiKeyId: 'YOUR_API_KEY',
  ibmAuthEndpoint: 'https://iam.cloud.ibm.com/identity/token',
  serviceInstanceId: 'YOUR_SERVICE_INSTANCE_ID',
  bucketName: 'YOUR_BUCKET_NAME'
};

const cos = new COS.S3(config);

const createBucket = async () => {
  const params = {
    Bucket: config.bucketName,
    CreateBucketConfiguration: {
      LocationConstraint: 'us-standard'
    }
  };

  try {
    await cos.createBucket(params).promise();
    console.log('Bucket created successfully');
  } catch (err) {
    console.error('Error creating bucket:', err);
  }
};

createBucket();

const uploadObject = async () => {
  const params = {
    Bucket: config.bucketName,
    Key: 'example.txt',
    Body: 'Hello, IBM Object Storage!'
  };

  try {
    await cos.putObject(params).promise();
    console.log('Object uploaded successfully');
  } catch (err) {
    console.error('Error uploading object:', err);
  }
};

uploadObject();

const downloadObject = async () => {
  const params = {
    Bucket: config.bucketName,
    Key: 'example.txt'
  };

  try {
    const data = await cos.getObject(params).promise();
    console.log('Object downloaded successfully:', data.Body.toString());
  } catch (err) {
    console.error('Error downloading object:', err);
  }
};

downloadObject();

const updateObject = async () => {
  const params = {
    Bucket: config.bucketName,
    Key: 'example.txt',
    Body: 'Updated content'
  };

  try {
    await cos.putObject(params).promise();
    console.log('Object updated successfully');
  } catch (err) {
    console.error('Error updating object:', err);
  }
};

updateObject();

const deleteObject = async () => {
  const params = {
    Bucket: config.bucketName,
    Key: 'example.txt'
  };

  try {
    await cos.deleteObject(params).promise();
    console.log('Object deleted successfully');
  } catch (err) {
    console.error('Error deleting object:', err);
  }
};

deleteObject();