CODEWITHSUNDEEP
authenticationpostmangoogle-cloud-endpointsservice-accountsgoogle-cloud-vertex-ai
Maxime Oriol
Maxime Oriol

Reputation: 143

How to authenticate with a Vertex AI endpoint in Postman without manual action?

I created a endpoint on Google Cloud Platform Vertex AI and I managed to consume it with Postman with the following authentication process:

  1. Connect to GCP
  2. Open a gcloud console and run gcloud auth login
  3. Follow the process to authenticate yourself as user of the Google Cloud SDK
  4. Run gcloud auth print-access-token
  5. Copy the returned token and paste it onto Postman > Authorization > Type > Bearer Token

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This token is only valid one hour.

How can I remove this repetitive manual authentication ? Could you describe another process for setting up automatic authentication ?

Upvotes: 0

Views: 1692

Answers (2)

Maxime Oriol
Maxime Oriol

Reputation: 143

To my knowledge, the best way is to define a service account (SA), use its key (which never expires) and a Javascript pre-request script:

  1. A devops engineer can create the custom user-manager SA and grants it the aiplatform.endpoints.predict permission (see tutorial here)
  2. Configure Postman with the keys of the created service account and the pre-request script auto-generating a Bearer token (see tutorial here)
  3. Fill in the content of your request (method, url, body, etc) and run it

Upvotes: 0

Nestor
Nestor

Reputation: 1377

There is a documentation about token's lifetime here.

By default, access tokens are good for 1 hour (3,600 seconds). When the access token has expired, your token management code must get a new one.

If you need an access token with a longer or shorter lifetime, you can use the serviceAccounts.generateAccessToken method to create the token. This method enables you to choose the lifetime of the token, with a maximum lifetime of 12 hours.

Upvotes: 1

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