Authenticate to Batch

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This document describes how to authenticate to Batch programmatically.

For more information about Google Cloud authentication, see the authentication overview.

API access

Batch supports programmatic access. How you authenticate to Batch depends on how you access the API. You can access the API in the following ways:

Google Cloud CLI

When you use the gcloud CLI to access Batch, you log in to the gcloud CLI with a Google Account, which provides the credentials used by the gcloud CLI commands.

If your organization's security policies prevent user accounts from having the required permissions, you can impersonate a service account, either by using the impersonate_service_account property or by using the --impersonate-service-account flag, which affects only the command for which you use it.

For more information about using the gcloud CLI with Batch, see the gcloud CLI reference pages.

REST

You can authenticate to Batch from the command line by using Application Default Credentials. For more information, see Authenticate using REST.

If you want to use the API without using a client library, you can use Google's authentication library for your programming language. Alternatively, you can implement authentication in your code.

Access control with IAM

When you grant roles to a principal, always grant roles with only the required permissions; granting broader roles, such as basic roles, violates the principle of least privilege.

For more information about the roles for Batch, see Access control with IAM. For more information about Identity and Access Management (IAM) and authorization, see IAM overview.

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