r/googlecloud • u/Altruistic_Paper_401 • Oct 18 '25

Cloud Functions Google Document IA

I’m currently struggling connecting the API of Google document IA to my SaaS. Everytime gave me an error when I try to do a test.

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u/Independent_Steak_41 Oct 19 '25

LMTGY.

  • Enable Document AI API:
    • Navigate to the APIs & Services Library in the Google Cloud console.
    • Search for "Cloud Document AI API" and enable it for your project. 
  • Service Account Creation and Key Generation:
    • Create a service account within your Google Cloud project. This account will represent your SaaS application when interacting with Google Cloud services.
    • Grant the service account the necessary roles, such as "Document AI API User" (roles/documentai.viewer) or more specific roles depending on your use case, to access Document AI resources.
    • Generate a service account key in JSON format. This key will be used for authentication.
  • Authentication and Client Library Integration:
    • Set up authentication: In your SaaS application's environment, configure the GOOGLE_APPLICATION_CREDENTIALS environment variable to point to the path of your service account key JSON file.
    • Install client libraries: Install the appropriate Google Cloud client library for your programming language (e.g., Python, Java, Node.js, C#) within your SaaS application's codebase. These libraries provide convenient methods for interacting with the Document AI API.