How To Copy Move All Objects In Amazon S3 From One Prefix To Other Using The Aws Sdk For Node Js

Amazon S3 (Simple Storage Service) is a reliable and scalable cloud storage solution provided by Amazon Web Services (AWS) that allows developers to store and retrieve data effortlessly. When managing objects in S3 buckets, you may need to copy or move all objects from one prefix to another, and the AWS SDK for Node.js offers a convenient way to achieve this.

To accomplish this task using the AWS SDK for Node.js, you will need to use the `copyObject` or `copyObjectCommand` method to copy objects within the same bucket or across different buckets. Here's a step-by-step guide to help you copy or move all objects in Amazon S3 from one prefix to another:

1. **Initialize AWS SDK**: First, you need to initialize the AWS SDK in your Node.js project by installing the `aws-sdk` npm package and configuring it with your AWS credentials.

npm install aws-sdk

2. **Import AWS SDK**: In your Node.js script or application file, require the `aws-sdk` module to start working with AWS services.

const AWS = require('aws-sdk');

3. **Create an S3 Object**: Initialize the S3 service object using the AWS SDK and specify the region where your S3 bucket is located.

const s3 = new AWS.S3({ region: 'your-region' });

4. **List Objects with Prefix**: Use the `listObjectsV2` method to retrieve a list of objects with the specified prefix in your source bucket.

const params = {
  Bucket: 'your-bucket-name',
  Prefix: 'source-prefix/',
};

s3.listObjectsV2(params, (err, data) => {
  if (err) {
    console.error('Error listing objects:', err);
  } else {
    data.Contents.forEach(object => {
      const sourceKey = object.Key;
      const destinationKey = sourceKey.replace('source-prefix/', 'destination-prefix/');
      
      // Copy object to the new prefix
      s3.copyObject({
        Bucket: 'your-bucket-name',
        CopySource: `/${params.Bucket}/${sourceKey}`,
        Key: destinationKey,
      }, (copyErr, copyData) => {
        if (copyErr) {
          console.error('Error copying object:', copyErr);
        } else {
          console.log(`Copied ${sourceKey} to ${destinationKey}`);
        }
      });
    });
  }
});

5. **Execute the Script**: Run your Node.js script to copy or move all objects from the source prefix to the destination prefix in your Amazon S3 bucket. Make sure you have appropriate permissions to perform these actions on your S3 bucket.

By following these steps and leveraging the AWS SDK for Node.js, you can efficiently copy or move all objects in Amazon S3 from one prefix to another. This streamlined process simplifies your data management tasks and empowers you to maintain a well-organized storage structure within your S3 buckets using the power of Node.js and AWS services.