Google service account: setup guide for automation

A Google service account is a crucial tool for automating interactions with Google APIs such as Drive, Sheets, Calendar, and Gmail without requiring user consent each time a workflow runs. This guide provides a comprehensive overview of correctly setting up a Google service account, including enabling necessary APIs, creating the account with minimal permissions, sharing resources with the service account email, and securing the JSON key. It highlights the importance of the principle of least privilege in permissions management to minimize security risks, as over-permissioned accounts are a common cause of security incidents. The guide explains the JWT-based authentication flow used in automation workflows, where CodeWords manages Google authentication natively for seamless integration with Sheets, Drive, and Calendar. It also addresses common mistakes, such as forgetting to share resources or committing JSON keys to version control, and emphasizes the importance of safe key rotation and monitoring for abuse. The guide concludes by noting that Google service accounts, when set up correctly, provide reliable automation, while misconfigurations can lead to ongoing debugging and permission issues.

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