An s3 example for Node.js

s3-example.js

var fs = require('fs'),
  AWS = require('aws-sdk'),
  s3 = new AWS.S3();
var body = fs.createReadStream('./profile.jpeg');
var date = new Date();
var params = { 
  Bucket: 'rapidoapp',
  Key: "avatar-" + date.getTime() + ".jpeg",
  Body: body
};

s3.putObject(params, function(err, data) {
  console.log(data);
});