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79 lines
2.7 KiB
Python
79 lines
2.7 KiB
Python
# Copyright (c) Microsoft. All rights reserved.
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"""Client that starts the composed workflow orchestration and prints the result.
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The worker (``worker.py``) must be running first. Only the *outer* workflow is
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started by the client; its embedded sub-workflow runs automatically as a durable
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child orchestration when the outer workflow reaches the ``WorkflowExecutor`` node.
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The workflow is started via ``DurableWorkflowClient.start_workflow`` - which
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schedules the ``dafx-review_pipeline`` orchestration that
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``DurableAIAgentWorker.configure_workflow`` auto-registers for the outer workflow.
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Prerequisites:
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- ``worker.py`` running and connected to the same Durable Task Scheduler.
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- A Durable Task Scheduler reachable at ``ENDPOINT`` (default ``http://localhost:8080``).
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"""
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import asyncio
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import logging
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import os
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from agent_framework.azure import DurableWorkflowClient
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from azure.identity import AzureCliCredential
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from dotenv import load_dotenv
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from durabletask.azuremanaged.client import DurableTaskSchedulerClient
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load_dotenv()
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logging.basicConfig(level=logging.INFO)
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logger = logging.getLogger(__name__)
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# The client targets the outer workflow; the sub-workflow runs as a child orchestration.
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WORKFLOW_NAME = "review_pipeline"
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def get_client(taskhub: str | None = None, endpoint: str | None = None) -> DurableTaskSchedulerClient:
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"""Create a configured DurableTaskSchedulerClient."""
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taskhub_name = taskhub or os.getenv("TASKHUB", "default")
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endpoint_url = endpoint or os.getenv("ENDPOINT", "http://localhost:8080")
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credential = None if endpoint_url == "http://localhost:8080" else AzureCliCredential()
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return DurableTaskSchedulerClient(
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host_address=endpoint_url,
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secure_channel=endpoint_url != "http://localhost:8080",
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taskhub=taskhub_name,
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token_credential=credential,
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)
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def run_workflow(client: DurableWorkflowClient, review: str) -> None:
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"""Start the outer workflow with a review and wait for the result."""
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instance_id = client.start_workflow(input=review)
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logger.info("Started workflow instance: %s", instance_id)
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output = client.await_workflow_output(instance_id)
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logger.info("Workflow output: %s", output)
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async def main() -> None:
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"""Run the composed workflow against a couple of product reviews."""
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client = DurableWorkflowClient(get_client(), workflow_name=WORKFLOW_NAME)
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logger.info("TEST 1: Positive review")
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run_workflow(
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client,
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"Absolutely love this espresso machine - it heats up fast and the coffee is consistently great.",
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)
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logger.info("TEST 2: Negative review")
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run_workflow(
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client,
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"Disappointed. The device stopped working after two weeks and support never replied.",
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)
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if __name__ == "__main__":
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asyncio.run(main())
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