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Build, test, and deploy a custom app on Reasoning Engine
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This sample demonstrates how to build, test, and deploy a custom app on Reasoning Engine. It includes a local test of the app and the steps to deploy the app on the Reasoning Engine.
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For detailed documentation that includes this code sample, see the following:
Code sample
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[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],[],[],[],null,["# Build, test, and deploy a custom app on Reasoning Engine\n\nThis sample demonstrates how to build, test, and deploy a custom app on Reasoning Engine. It includes a local test of the app and the steps to deploy the app on the Reasoning Engine.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Agent Engine API](/vertex-ai/generative-ai/docs/model-reference/reasoning-engine)\n\nCode sample\n-----------\n\n### Python\n\n\nBefore trying this sample, follow the Python setup instructions in the\n[Vertex AI quickstart using\nclient libraries](/vertex-ai/docs/start/client-libraries).\n\n\nFor more information, see the\n[Vertex AI Python API\nreference documentation](/python/docs/reference/aiplatform/latest).\n\n\nTo authenticate to Vertex AI, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n import https://cloud.google.com/python/docs/reference/vertexai/latest/\n from vertexai.preview import https://cloud.google.com/python/docs/reference/vertexai/latest/vertexai.preview.reasoning_engines.html\n\n # TODO(developer): Update and un-comment below lines\n # PROJECT_ID = \"your-project-id\"\n # staging_bucket = \"gs://YOUR_BUCKET_NAME\"\n https://cloud.google.com/python/docs/reference/vertexai/latest/.init(\n project=PROJECT_ID, location=\"us-central1\", staging_bucket=staging_bucket\n )\n\n class SimpleAdditionApp:\n def query(self, a: int, b: int) -\u003e str:\n \"\"\"Query the application.\n Args:\n a: The first input number\n b: The second input number\n Returns:\n int: The additional result.\n \"\"\"\n return f\"{int(a)} + {int(b)} is {int(a + b)}\"\n\n # Locally test\n app = SimpleAdditionApp()\n app.query(a=1, b=2)\n\n # Create a remote app with Reasoning Engine.\n # This may take 1-2 minutes to finish.\n reasoning_engine = https://cloud.google.com/python/docs/reference/vertexai/latest/vertexai.preview.reasoning_engines.html.https://cloud.google.com/python/docs/reference/vertexai/latest/vertexai.preview.reasoning_engines.ReasoningEngine.html.create(\n SimpleAdditionApp(),\n display_name=\"Demo Addition App\",\n description=\"A simple demo addition app\",\n requirements=[\"cloudpickle==3\"],\n extra_packages=[],\n )\n # Example response:\n # Using bucket YOUR_BUCKET_NAME\n # Writing to gs://YOUR_BUCKET_NAME/reasoning_engine/reasoning_engine.pkl\n # ...\n # ReasoningEngine created. Resource name: projects/123456789/locations/us-central1/reasoningEngines/123456\n # To use this ReasoningEngine in another session:\n # reasoning_engine = vertexai.preview.reasoning_engines.ReasoningEngine('projects/123456789/locations/...\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=generativeaionvertexai)."]]