How to upload image/file to AWS S3 bucket using nodejs

By Mr. Rahul April 8, 2021 NodeJS 0 Comments

In this era amazon provides the best web services. So today i am going to explain how we can store data on AWS S3 bucket with help of nodejs. firstly after sign in on amazon website you need to follow these steps for upload data into S3 bucket.
1. Go to AWS console https://console.aws.amazon.com/s3/
2. Choose Create bucket.
3. Enter bucket name.
4. Select Region what you want to choose
5. Then bucket to make public.
6. Click on save
7. Now bucket created

Setup project for node js:

1 . mkdir node

2 . cd /node

3 . Run these commands for install node project

npm install
npm install express –save

1 2	npm install npm install express –save

4. Now create index.js file in the root of the project folder. And paste this code.

var express = require('express');
var app = express();

app.get('/', function (req, res) {
  res.send('Hello World!');
});

app.listen(3000, function () {
  console.log('Example app listening on port 3000!');
});

var express = require('express');

var app = express();

app.get('/', function (req, res) {

res.send('Hello World!');

});

app.listen(3000, function () {

console.log('Example app listening on port 3000!');

});

5. Install ‘aws-sdk’ library for use AWS S3 bucket

npm install aws-sdk

1	npm install aws-sdk

6. After that add this code on top of page

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

1 2	const fs = require('fs'); const AWS = require('aws-sdk');

7. This is AWS bucket details what you need to set in nodejs code.

const ID = 'XXXXXXX';
const SECRET = 'XXXXXXXXX';

// The name of the bucket that you have created
const BUCKET_NAME = 'BUCKET_NAME';

const s3 = new AWS.S3({
    accessKeyId: ID,
    secretAccessKey: SECRET
});

const ID = 'XXXXXXX';

const SECRET = 'XXXXXXXXX';

// The name of the bucket that you have created

const BUCKET_NAME = 'BUCKET_NAME';

const s3 = new AWS.S3({

accessKeyId: ID,

secretAccessKey: SECRET

});

This function i have created for upload file on aws s3 bucket. I use fs library for read file content and send file to the bucket with this code.

function uploadS3(filepath, filename, uploadpath) {
    console.log(filepath)
    fs.readFile(filepath, function (err, data) {
        if (err) throw err; // Something went wrong!
        
        // Read content from the file
        const fileContent = fs.readFileSync(filepath);

        // Setting up S3 upload parameters
        const params = {
            Bucket: BUCKET_NAME,
            Key: uploadpath+'/'+filename, // File name you want to save as in S3
            Body: fileContent,
            ACL:'public-read' // Make file public
        };

        // Uploading files to the bucket
        s3.upload(params, function(err, data) {
            if (err) {
                throw err;
            }
            console.log(`File uploaded successfully. ${data.Location}`);
          // This code for delete file after upload
            fs.unlink(filepath, function (err) {
                if (err) {
                    console.error(err);
                }
                console.log('Temp File Delete');
            });

            console.log({'msg': 'File uploaded successfully!!', 'status': 1});
        });

    });
};

function uploadS3(filepath, filename, uploadpath) {

console.log(filepath)

fs.readFile(filepath, function (err, data) {

if (err) throw err; // Something went wrong!

// Read content from the file

const fileContent = fs.readFileSync(filepath);

// Setting up S3 upload parameters

const params = {

Bucket: BUCKET_NAME,

Key: uploadpath+'/'+filename, // File name you want to save as in S3

Body: fileContent,

ACL:'public-read' // Make file public

};

// Uploading files to the bucket

s3.upload(params, function(err, data) {

if (err) {

throw err;

}

console.log(`File uploaded successfully. ${data.Location}`);

// This code for delete file after upload

fs.unlink(filepath, function (err) {

if (err) {

console.error(err);

}

console.log('Temp File Delete');

});

console.log({'msg': 'File uploaded successfully!!', 'status': 1});

});

};

Call function in index.js file

uploadS3('image.png', 'uploadfile.png', '/uploadpath/');

1	uploadS3('image.png', 'uploadfile.png', '/uploadpath/');

Now run application with this command

node index.js

1	node index.js

This is tutorial for upload file from node application to AWS S3 bucket if you like this tutorial please share and keep learning for better life. Thanks, 🙂

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Tags:nodejs

About Author

@rahul

Website designer, Full stack developer, Blogger with 10+ years of experience.

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How to upload image/file to AWS S3 bucket using nodejs

Setup project for node js:

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