clientRequestToken

A unique identifier for the new version of the secret.

If you use the Amazon Web Services CLI or one of the Amazon Web Services SDKs to call this operation, then you can leave this parameter empty. The CLI or SDK generates a random UUID for you and includes it as the value for this parameter in the request.

If you generate a raw HTTP request to the Secrets Manager service endpoint, then you must generate a ClientRequestToken and include it in the request.

This value helps ensure idempotency. Secrets Manager uses this value to prevent the accidental creation of duplicate versions if there are failures and retries during a rotation. We recommend that you generate a UUID-type value to ensure uniqueness of your versions within the specified secret.

• If the ClientRequestToken value isn't already associated with a version of the secret then a new version of the secret is created.

• If a version with this value already exists and that version's SecretString or SecretBinary values are the same as those in the request then the request is ignored. The operation is idempotent.

• If a version with this value already exists and the version of the SecretString and SecretBinary values are different from those in the request, then the request fails because you can't modify a secret version. You can only create new versions to store new secret values.

This value becomes the VersionId of the new version.