Restore a version of a prompt

This sample demonstrates how to restore a specific version of the specified prompt.

Code sample

Python

Before trying this sample, follow the Python setup instructions in the Vertex AI quickstart using client libraries. For more information, see the Vertex AI Python API reference documentation.

To authenticate to Vertex AI, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

#     import vertexai
#     from vertexai.preview import prompts
#
#     # Initialize vertexai
#     vertexai.init(project=PROJECT_ID, location="us-central1")
#
#     # Create local Prompt
#     prompt = Prompt(
#         prompt_name="zoologist",
#         prompt_data="Which animal is the fastest on earth?",
#         model_name="gemini-2.0-flash-001",
#         system_instruction="You are a zoologist. Answer in a short sentence.",
#     )
#     # Save Prompt to online resource.
#     prompt1 = prompts.create_version(prompt=prompt)
#     prompt_id = prompt1.prompt_id
#
#     # Restore to prompt version id 1 (original)
#     prompt_version_metadata = prompts.restore_version(prompt_id=prompt_id, version_id="1")
#
#     # Fetch the newly restored latest version of the prompt
#     prompt1 = prompts.get(prompt_id=prompt_version_metadata.prompt_id)
#
#     # Example response:
#     # Restored prompt version 1 under prompt id 12345678910 as version number 2

What's next

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