How to use the AWS SDK for JavaScript with B2 How to use the AWS SDK for JavaScript with B2

How to use the AWS SDK for JavaScript with B2

Troy Troy


B2 can easily be configured for use with the AWS SDK for JavaScript thanks to the S3 Compatible API. Below is an example of a sample.js that has been configured to set credentials, create a bucket, and upload a file.


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// Load the SDK and UUID
var AWS = require('aws-sdk');
var uuid = require('node-uuid');

// Create an S3 client
var credentials = new AWS.SharedIniFileCredentials({profile: 'b2'});
AWS.config.credentials = credentials;
var ep = new AWS.Endpoint('');
var s3 = new AWS.S3({endpoint: ep});

// Create a bucket and upload something into it
var bucketName = 'node-sdk-sample-' + uuid.v4();
var keyName = 'hello_world.txt';

s3.createBucket({Bucket: bucketName}, function() {
var params = {Bucket: bucketName, Key: keyName, Body: 'Hello World!'};
s3.putObject(params, function(err, data) {
if (err)
console.log("Successfully uploaded data to " + bucketName + "/" + keyName);


Content of the config.json

b2@vm:~/aws-nodejs-sample$ more config.json
{"accessKeyId": your_b2_keyid, "secretAccessKey": your_appKey, "region": "us-west-002" }


You can also have the credentials added to the ~/.aws/credentials as a separate profile

aws_access_key_id = your_b2_keyId
aws_secret_access_key = your_b2_appKey


In this case, you won’t need the following 2 lines in the script above 

var credentials = new AWS.SharedIniFileCredentials({profile: 'b2'});
AWS.config.credentials = credentials;

Then run the same script as follows.

b2@vm:~/aws-nodejs-sample$ AWS_PROFILE=b2 node sample.js
Successfully uploaded data to node-sdk-sample-38cb5413-29c2-46f5-ab2d-4ac4d553f929/hello_world.txt

The S3 Compatible API for Backblaze B2 Cloud Storage allows 1000’s of integrations to work with B2 natively. If you’re new to the S3 Compatible API, please see our Getting Started Guide. If you have any trouble using AWS SDK for JavaScript with B2, please let us know by emailing us at