AWS SDK credentials required for SDK Invocations

When you create an AWS account, your account is provided with root credentials. Those credentials consist of two access keys:

Access key ID

Secret access key

Access keys consist of an access key ID and secret access key, which are used to sign programmatic requests that you make to AWS. If you don't have access keys, you can create them from the AWS Management Console. As a best practice, do not use the AWS account root user access keys for any task where it's not required. Instead, create a new administrator IAM user with access keys for yourself.

The only time that you can view or download the secret access key is when you create the keys. You cannot recover them later. However, you can create new access keys at any time. You must also have permissions to perform the required IAM actions. For more information, see Permissions Required to Access IAM Resources in the IAM User Guide.

Sign in to the AWS Management Console and open the IAM console at https://console.aws.amazon.com/iam/.

In the navigation pane, choose Users.

Choose the name of the user whose access keys you want to create, and then choose the Security credentials tab.

In the Access keys section, choose Create access key.

To view the new access key pair, choose Show. You will not have access to the secret access key again after this dialog box closes. Your credentials will look something like this:

Access key ID: AKIAIOSFODNN7EXAMPLE

Secret access key: wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY

To download the key pair, choose Download .csv file. Store the keys in a secure location. You will not have access to the secret access key again after this dialog box closes.

Keep the keys confidential in order to protect your AWS account and never email them. Do not share them outside your organization, even if an inquiry appears to come from AWS or Amazon.com. No one who legitimately represents Amazon will ever ask you for your secret key.

After you download the .csv file, choose Close. When you create an access key, the key pair is active by default, and you can use the pair right away.

references:

https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/getting-your-credentials.html