test-repo/s3.js

const { S3Client, PutObjectCommand, ListBucketsCommand, GetObjectCommand } = require('@aws-sdk/client-s3');
// const { fromIni } = require('@aws-sdk/credential-providers');


const minioClient = new S3Client({
  endpoint: 'http://localhost:9000/test',  // MinIO server URL
  region: 'us-east-1',                // Required but not used by MinIO
  credentials: {
    accessKeyId: 'minioadmin',        // Default MinIO credentials
    secretAccessKey: 'minioadmin'
  },
  forcePathStyle: true,               // REQUIRED for MinIO
  sslEnabled: false                   // Set to true if using HTTPS
});

// List all buckets
async function listBuckets() {
  try {
    const command = new ListBucketsCommand({});
    const response = await minioClient.send(command);
    console.log('Buckets:', response.Buckets);
    return response.Buckets;
  } catch (error) {
    console.error('Error listing buckets:', error);
  }
}

// Upload a file
async function uploadFile(bucketName, objectName, fileContent) {
  try {
    const command = new PutObjectCommand({
      Bucket: bucketName,
      Key: objectName,
      Body: fileContent,
      ContentType: 'text/plain'
    });
    
    const response = await minioClient.send(command);
    console.log('File uploaded:', response);
    return response;
  } catch (error) {
    console.error('Upload error:', error);
  }
}

// Download a file
async function downloadFile(bucketName, objectName) {
  try {
    const command = new GetObjectCommand({
      Bucket: bucketName,
      Key: objectName
    });
    
    const response = await minioClient.send(command);
    const content = await response.Body.transformToString();
    console.log('File content:', content);
    return content;
  } catch (error) {
    console.error('Download error:', error);
  }
}

// Example usage
(async () => {
  // Create a bucket first (you need to create buckets via console or CLI)
  const buckets = await listBuckets();
  // console.log('Available buckets:', buckets);
  
  // Upload a file
  await uploadFile('cap-web', 'textfiles/test2.txt', 'Hello MinIO from Node.js!');
  
  // // Download the file
  // await downloadFile('cap-web', 'test.txt');
})();