How to upload images to S3 with Node.js
Posted on July 8, 2020 in
1 min read
Here an handy script to upload a folder of images to S3 using Node.js.
First, the dependencies, install the following packages:
AWS and Dotenv with:
npm install aws-sdk dotenv
Then, create a .env file putting your AWS credentials, such as:
AWS_ACCESS_KEY_ID=YOURKEYID
AWS_SECRET_ACCESS_KEY=YOURSECRETKEY
S3_BUCKET_NAME=yourbucketname
S3_REGION=eu-central-1
Finally, here the uploadToS3.js script with some comments along the lines:
require('dotenv').config()
const fs = require('fs')
const aws = require('aws-sdk')
aws.config.region = process.env.S3_REGION
const S3_BUCKET = process.env.S3_BUCKET_NAME
let index = 0
let imgList = []
const upload = () => {
const pathName = imgList[index]
const s3 = new aws.S3()
console.log('uploading', pathName)
const buffer = fs.readFileSync('dl/' + filename, null)
const s3Params = {
Bucket: S3_BUCKET,
Key: pathName,
Expires: 60 * 15,
Body: buffer,
ContentType: 'image/jpg',
ACL: 'public-read'
}
s3.putObject(s3Params, (err, data) => {
if (err) throw err
index++
if (index >= imgList.length) {
cb()
} else {
upload(cb)
}
})
}
module.exports = (cb) => {
imgList = fs.readdirSync('dl')
upload(cb)
}
The above script can be used this way:
const uploadImages = require('./uploadToS3.js')
uploadImages(() => {
console.log('done!')
})
Happy uploading!