app.js

var AWS = require('aws-sdk')

var s3 = new AWS.S3({
  accessKeyId: 'admin',
  secretAccessKey: 'password',
  endpoint: 'http://localhost:9001',
  s3ForcePathStyle: true,
  signatureVersion: 'v4'
})

s3.createBucket({ Bucket: "awstest" }, (err, data) => {
  if (err)
    console.log("Error: ", err)
  else
    console.log("Success: ", data.Location)
})

var params = { Bucket: 'awstest', Key: 'testobject', Body: 'Hello from MinIO!' };

s3.putObject(params, (err, data) => {
  if (err) {
    console.log(err)
  } else {
    console.log("Successfully uploaded data to testbucket/testobject")
  }
})

var params = { Bucket: 'awstest', Key: 'testobject' }

var file = require('fs').createWriteStream('./test_from_minio.txt')

s3.getObject(params)
  .on('httpData', (chunk) => { file.write(chunk) })
  .on('httpDone', () => { file.end() })
  .send()