S3 Util to Upload files and fetch uploaded files

s3-util.js

const fs = require('fs'); // npm i fs
const AWS = require('aws-sdk'); // npm i aws-sdk

const arguments = {};
process.argv.forEach(arg => {
    const [index, value] = arg.split("=");
    console.log(index, value);
    arguments[index] = value;
});

AWS.config.update({
    accessKeyId: "<AWS-ACCESS-KEY>",
    secretAccessKey: "<AWS-SECRET-KEY>"
});

const s3 = new AWS.S3({ region: "<AWS-S3-REGION>" });

const getParams = () => {
    const filepath = '/Users/system/Pictures/f0d33d80-0adc-11ea-8755-d33e3212dd94.png';
    const [ fileName, fileExt ] = filepath.substring(filepath.lastIndexOf('/') +1).split('.');
    const Body = fs.createReadStream(filepath);
    const now = new Date();
    const timeStamp = now.getTime();
    const Key = `${fileName}_${timeStamp}.${fileExt}`;
    // to set meta data of the file for showing the file inline instead of force download
    // const ContentType = 'image/png';
    // const ContentType = 'text/csv';
    const ContentType = 'text/plain';
    // const ACL = 'public-read';
    const params = {
        Bucket = "<AWS-S3-BUCKET>",
        Key,
        Body,
        ACL,
        ContentType,
    };
    return params;
}

const getUploadLink = () => {
    const minuteInSeconds = 60;
    const hourInSeconds = 60 * minuteInSeconds;
    const dayInSeconds = 24 * hourInSeconds;
    const weekInSeconds = 7 * dayInSeconds;
    const Expires = 1 * weekInSeconds;
    const ACL = 'public-read';
    const ContentType = 'image/png';
    const Key = getParams().Key
    const params = {
        Key,
        Bucket,
        Expires,
        ContentType,
        ACL
    }
    s3.getSignedUrl('putObject', params, function(err, data) {
        if (err) console.log('getLink error ->', err); 
        else console.log('getLink data ->', data); 
    });
}

const upload = () => {
    const params = getParams();
    s3.upload(params, function(err, data) {
        if (err) console.log('upload error ->', err); 
        else console.log('upload data ->', data); 
    });
}

const putObject = () => {
    const params = getParams();
    s3.putObject(params, function(err, data) {
        if (err) console.log('putObject error ->', err); 
        else console.log('putObject data ->', data); 
    });
}

const getLink = Key => {
    const minuteInSeconds = 60;
    const hourInSeconds = 60 * minuteInSeconds;
    const dayInSeconds = 24 * hourInSeconds;
    const weekInSeconds = 7 * dayInSeconds;
    const Expires = 1 * weekInSeconds;
    const params = {
        Key,
        Bucket,
        Expires
    }
    s3.getSignedUrl('getObject', params, function(err, data) {
        if (err) console.log('getLink error ->', err); 
        else console.log('getLink data ->', data); 
    });
}

const keys = arguments.filePaths.split(',');

keys.map(key => {
    console.log(`Secured AWS S3 link of ${key} is ${getLink(key)}`);
})

// upload();
// putObject();
// getUploadLink();

node s3-util.js filePaths='someName.png,someOtherFile.jpeg' command to upload files to S3 using the above file