s3.js/bin/s3-download.js

#!/usr/bin/env node

'use strict';

require('dotenv').config();
var env = process.env;
var s3 = require('../index.js');

var accessKeyId = env.AWS_ACCESS_KEY || env.AWS_ACCESS_KEY_ID;
var secretAccessKey = env.AWS_SECRET_ACCESS_KEY;
var region = env.AWS_REGION;
var bucket = env.AWS_BUCKET;
var prefix = env.AWS_BUCKET_PREFIX;

var key = process.argv[2];
var filepath = process.argv[3];
var fs = require('fs');

if (!key || !filepath) {
    console.info('Usage: s3-download.js s3-key-name ./path/to/file.bin');
    process.exit(1);
}

async function run() {
    // GET STREAMED FILE
    var resp = await s3.get({
        accessKeyId,
        secretAccessKey,
        region,
        bucket,
        prefix,
        key,
        stream: filepath
    });

    console.log('Downloading', resp.url);
    await resp.stream;

    console.log('');
    console.log('Saved as', filepath);
    console.log('');
}

run().catch(function (err) {
    console.error('Error:');
    if (err.response) {
        console.error(err.url);
        console.error('GET Response:');
        console.error(err.response.statusCode);
        console.error(err.response.headers);
        console.error(err.response.body.toString('utf8'));
    } else {
        console.error(err);
    }
    process.exit(1);
});