auto upload content to s3 bucket

config.json

{
    "accessKeyId": "xxxxx",
    "secretAccessKey": "xxxxxxx",
    "region": "ap-northeast-1"
}

s3-deploy.js

var path = require("path");
var fs = require('fs');
var mime = require('mime');
var AWS = require('aws-sdk');
AWS.config.loadFromPath('./s3-deploy/config.json');
let s3 = new AWS.S3();

const uploadDir = function (s3Path, bucketName) {
    function walkSync(currentDirPath, callback) {
        fs.readdirSync(currentDirPath).forEach(function (name) {
            var filePath = path.join(currentDirPath, name);
            var stat = fs.statSync(filePath);
            if (stat.isFile()) {
                callback(filePath, stat);
            } else if (stat.isDirectory()) {
                walkSync(filePath, callback);
            }
        });
    }

    walkSync(s3Path, function (filePath, stat) {
        let bucketPath = filePath.substring(s3Path.length + 1);
        let mimeType = mime.getType(bucketPath);
        let params = { 
            Bucket: bucketName, 
            Key: bucketPath.replace(/\\/g, '/'), 
            Body: fs.readFileSync(filePath),
            ContentType: mimeType
        };
        s3.putObject(params, function (err, data) {
            if (err) {
                console.log(err)
            } else {
                console.log('Successfully uploaded ' + bucketPath + ' to ' + bucketName);
            }
        });
    });
};

uploadDir("public", "images.troyyang.com");