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Amazon s3 bucket image upload using node.js

In this article, I will explain about storing the image in S3 bucket and save URL in your local storage.

google image

Before we move to write we have to create an S3 bucket. The link helps you to create a bucket. Click here

Once you create a bucket then move to write coding.

In AWS account, you have these things



3. Bucket name

4. Region

Various ways we can store images in the S3 bucket. In this example, we store images using base64 format.

Convert base64 to image buffer.



Install plugin

npm install aws-sdk

Once you installed successfully then move to set up AWS-SDK.


Set your ‘AWS_ACCESS_KEY_ID’ and ‘AWS_SECRET_ACCESS_KEY’ in your .env file.

Set your region and bucket name from your AWS account.

PutObject function


In the above picture we define these things

key: Path of images (‘/user/1.jpg’).

buffer: Image buffer.

ContentEncoding: 'base64',
ContentType: 'image/jpeg',
ACL: 'public-read'


We can set our uploaded image URL

You can access your image by using:


or if there are no folders, you can do:


Get uploaded image URL:


The function return image URL.

Once you get image URL then store in your local storage.

Once I get the image URL then I store the image URL in my PostgreSQL DB.




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Edison Devadoss

Edison Devadoss

Software developer / JavaScript / React / React Native / Firebase / Node.js / C Programming / Book Reader / Story Teller

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