What is the recommended way to authenticate with the Vertex AI Generative AI API in Google Cloud Functions

Question

Can you tell me What is the recommended way to authenticate with the Vertex AI Generative AI API in Google Cloud Functions?

Answer 1

The recommended way to authenticate with the Vertex AI Generative AI API in Google Cloud Functions is to use Application Default Credentials (ADC) via the Google Cloud SDK or a service account with proper IAM permissions.

Here is the code snippet you can refer to:

In the above code we are using the following key points:

• Uses Application Default Credentials (ADC) for seamless authentication.
• Fetches OAuth Token Securely and refreshes if needed.
• Constructs API Request Properly with authentication headers.
• Implements Google Cloud Functions Decorator for HTTP handling.
• Handles Errors Gracefully by returning appropriate messages

Hence, authenticating with Vertex AI Generative AI API in Google Cloud Functions requires using Application Default Credentials (ADC), fetching OAuth tokens, and structuring API requests securely.