Setting Credentials in a Web Browser - AWS SDK for JavaScript

We announced the upcoming end-of-support for AWS SDK for JavaScript v2. We recommend that you migrate to AWS SDK for JavaScript v3. For dates, additional details, and information on how to migrate, please refer to the linked announcement.

Setting Credentials in a Web Browser

There are several ways to supply your credentials to the SDK from browser scripts. Some of these are more secure and others afford greater convenience while developing a script. Here are the ways you can supply your credentials in order of recommendation:

  1. Using Amazon Cognito Identity to authenticate users and supply credentials

  2. Using web federated identity

  3. Hard coded in the script


We do not recommend hard coding your AWS credentials in your scripts. Hard coding credentials poses a risk of exposing your access key ID and secret access key.