mirror of https://github.com/dapr/quickstarts.git
Update Python WF quickstart to wait_for_workflow_completion
Signed-off-by: Marc Duiker <marcduiker@users.noreply.github.com>
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Marc Duiker
parent
fab217c30b
commit
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@ -49,35 +49,50 @@ dapr run -f .
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```
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==========Begin the purchase of item:==========
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= APP - order-processor == *** Welcome to the Dapr Workflow console app sample!
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== APP - order-processor == *** Welcome to the Dapr Workflow console app sample!
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== APP - order-processor == *** Using this app, you can place orders that start workflows.
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== APP - order-processor == 2025-02-12 15:37:11.711 durabletask-worker INFO: Starting gRPC worker that connects to dns:127.0.0.1:34609
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== APP - order-processor == 2025-02-12 15:37:11.717 durabletask-worker INFO: Successfully connected to dns:127.0.0.1:34609. Waiting for work items...
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== APP - order-processor == 2025-02-13 11:44:11.357 durabletask-worker INFO: Starting gRPC worker that connects to dns:127.0.0.1:38891
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== APP - order-processor == 2025-02-13 11:44:11.361 durabletask-worker INFO: Successfully connected to dns:127.0.0.1:38891. Waiting for work items...
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== APP - order-processor == INFO:NotifyActivity:Received order 6830cb00174544a0b062ba818e14fddc for 1 cars at $5000 !
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== APP - order-processor == 2025-02-13 11:44:14.157 durabletask-worker INFO: 6830cb00174544a0b062ba818e14fddc: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:VerifyInventoryActivity:Verifying inventory for order 6830cb00174544a0b062ba818e14fddc of 1 cars
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== APP - order-processor == INFO:VerifyInventoryActivity:There are 10 Cars available for purchase
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== APP - order-processor == 2025-02-13 11:44:14.171 durabletask-worker INFO: 6830cb00174544a0b062ba818e14fddc: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:ProcessPaymentActivity:Processing payment: 6830cb00174544a0b062ba818e14fddc for 1 cars at 5000 USD
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== APP - order-processor == INFO:ProcessPaymentActivity:Payment for request ID 6830cb00174544a0b062ba818e14fddc processed successfully
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== APP - order-processor == 2025-02-13 11:44:14.177 durabletask-worker INFO: 6830cb00174544a0b062ba818e14fddc: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:UpdateInventoryActivity:Checking inventory for order 6830cb00174544a0b062ba818e14fddc for 1 cars
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== APP - order-processor == INFO:UpdateInventoryActivity:There are now 9 cars left in stock
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== APP - order-processor == 2025-02-13 11:44:14.189 durabletask-worker INFO: 6830cb00174544a0b062ba818e14fddc: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:NotifyActivity:Order 6830cb00174544a0b062ba818e14fddc has completed!
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== APP - order-processor == 2025-02-13 11:44:14.195 durabletask-worker INFO: 6830cb00174544a0b062ba818e14fddc: Orchestration completed with status: COMPLETED
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== APP - order-processor == item: InventoryItem(item_name=Paperclip, per_item_cost=5, quantity=100)
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== APP - order-processor == item: InventoryItem(item_name=Cars, per_item_cost=5000, quantity=10)
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== APP - order-processor == item: InventoryItem(item_name=Computers, per_item_cost=500, quantity=100)
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== APP - order-processor == ==========Begin the purchase of item:==========
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== APP - order-processor == Starting order workflow, purchasing 1 of cars
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== APP - order-processor == 2025-02-12 15:37:16.719 durabletask-client INFO: Starting new 'order_processing_workflow' instance with ID = '645db1e53c644988b0b29d11dd21c118'.
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== APP - order-processor == 2025-02-12 15:37:16.724 durabletask-worker INFO: 645db1e53c644988b0b29d11dd21c118: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:NotifyActivity:Received order 645db1e53c644988b0b29d11dd21c118 for 1 cars at $5000 !
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== APP - order-processor == 2025-02-12 15:37:16.730 durabletask-worker INFO: 645db1e53c644988b0b29d11dd21c118: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:VerifyInventoryActivity:Verifying inventory for order 645db1e53c644988b0b29d11dd21c118 of 1 cars
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== APP - order-processor == 2025-02-13 11:44:16.363 durabletask-client INFO: Starting new 'order_processing_workflow' instance with ID = 'fc8a507e4a2246d2917d3ad4e3111240'.
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== APP - order-processor == 2025-02-13 11:44:16.366 durabletask-client INFO: Waiting 30s for instance 'fc8a507e4a2246d2917d3ad4e3111240' to complete.
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== APP - order-processor == 2025-02-13 11:44:16.366 durabletask-worker INFO: fc8a507e4a2246d2917d3ad4e3111240: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:NotifyActivity:Received order fc8a507e4a2246d2917d3ad4e3111240 for 1 cars at $5000 !
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== APP - order-processor == 2025-02-13 11:44:16.373 durabletask-worker INFO: fc8a507e4a2246d2917d3ad4e3111240: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:VerifyInventoryActivity:Verifying inventory for order fc8a507e4a2246d2917d3ad4e3111240 of 1 cars
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== APP - order-processor == INFO:VerifyInventoryActivity:There are 10 Cars available for purchase
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== APP - order-processor == 2025-02-12 15:37:16.740 durabletask-worker INFO: 645db1e53c644988b0b29d11dd21c118: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:ProcessPaymentActivity:Processing payment: 645db1e53c644988b0b29d11dd21c118 for 1 cars at 5000 USD
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== APP - order-processor == INFO:ProcessPaymentActivity:Payment for request ID 645db1e53c644988b0b29d11dd21c118 processed successfully
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== APP - order-processor == 2025-02-12 15:37:16.749 durabletask-worker INFO: 645db1e53c644988b0b29d11dd21c118: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:UpdateInventoryActivity:Checking inventory for order 645db1e53c644988b0b29d11dd21c118 for 1 cars
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== APP - order-processor == 2025-02-13 11:44:16.383 durabletask-worker INFO: fc8a507e4a2246d2917d3ad4e3111240: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:ProcessPaymentActivity:Processing payment: fc8a507e4a2246d2917d3ad4e3111240 for 1 cars at 5000 USD
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== APP - order-processor == INFO:ProcessPaymentActivity:Payment for request ID fc8a507e4a2246d2917d3ad4e3111240 processed successfully
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== APP - order-processor == 2025-02-13 11:44:16.390 durabletask-worker INFO: fc8a507e4a2246d2917d3ad4e3111240: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:UpdateInventoryActivity:Checking inventory for order fc8a507e4a2246d2917d3ad4e3111240 for 1 cars
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== APP - order-processor == INFO:UpdateInventoryActivity:There are now 9 cars left in stock
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== APP - order-processor == 2025-02-12 15:37:16.763 durabletask-worker INFO: 645db1e53c644988b0b29d11dd21c118: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:NotifyActivity:Order 645db1e53c644988b0b29d11dd21c118 has completed!
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== APP - order-processor == 2025-02-12 15:37:16.771 durabletask-worker INFO: 645db1e53c644988b0b29d11dd21c118: Orchestration completed with status: COMPLETED
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== APP - order-processor == Workflow completed! Result: WorkflowStatus.COMPLETED
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== APP - order-processor == 2025-02-12 15:37:16.775 durabletask-worker INFO: Stopping gRPC worker...
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== APP - order-processor == 2025-02-12 15:37:16.776 durabletask-worker INFO: Disconnected from dns:127.0.0.1:34609
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== APP - order-processor == 2025-02-12 15:37:16.777 durabletask-worker INFO: No longer listening for work items
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== APP - order-processor == 2025-02-12 15:37:16.777 durabletask-worker INFO: Worker shutdown completed
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== APP - order-processor == 2025-02-13 11:44:16.403 durabletask-worker INFO: fc8a507e4a2246d2917d3ad4e3111240: Orchestrator yielded with 1 task(s) and 0 event(s) outstanding.
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== APP - order-processor == INFO:NotifyActivity:Order fc8a507e4a2246d2917d3ad4e3111240 has completed!
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== APP - order-processor == 2025-02-13 11:44:16.411 durabletask-worker INFO: fc8a507e4a2246d2917d3ad4e3111240: Orchestration completed with status: COMPLETED
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== APP - order-processor == 2025-02-13 11:44:16.425 durabletask-client INFO: Instance 'fc8a507e4a2246d2917d3ad4e3111240' completed.
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== APP - order-processor == 2025-02-13 11:44:16.425 durabletask-worker INFO: Stopping gRPC worker...
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== APP - order-processor == 2025-02-13 11:44:16.426 durabletask-worker INFO: Disconnected from dns:127.0.0.1:38891
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== APP - order-processor == 2025-02-13 11:44:16.426 durabletask-worker INFO: No longer listening for work items
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== APP - order-processor == 2025-02-13 11:44:16.426 durabletask-worker INFO: Worker shutdown completed
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== APP - order-processor == Workflow completed! Result: {"processed": true, "__durabletask_autoobject__": true}
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```
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4. Stop Dapr workflow with CTRL-C or:
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@ -101,11 +116,11 @@ For a more detailed view of the workflow activities (duration, progress etc.), t
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When you ran `dapr run -f .`
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1. An OrderPayload is made containing one car.
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2. A unique order ID for the workflow is generated (in the above example, `645db1e53c644988b0b29d11dd21c118`) and the workflow is scheduled.
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2. A unique order ID for the workflow is generated (in the above example, `fc8a507e4a2246d2917d3ad4e3111240`) and the workflow is scheduled.
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3. The `NotifyActivity` workflow activity sends a notification saying an order for one car has been received.
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4. The `VerifyInventoryActivity` workflow activity checks the inventory data, determines if you can supply the ordered item, and responds with the number of cars in stock. The inventory is sufficient so the workflow continues.
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5. The total cost of the order is 5000, so the workflow will not call the `RequestApprovalActivity` activity.
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6. The `ProcessPaymentActivity` workflow activity begins processing payment for order `645db1e53c644988b0b29d11dd21c118` and confirms if successful.
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6. The `ProcessPaymentActivity` workflow activity begins processing payment for order `fc8a507e4a2246d2917d3ad4e3111240` and confirms if successful.
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7. The `UpdateInventoryActivity` workflow activity updates the inventory with the current available cars after the order has been processed.
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8. The `NotifyActivity` workflow activity sends a notification saying that order `645db1e53c644988b0b29d11dd21c118` has completed.
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8. The `NotifyActivity` workflow activity sends a notification saying that order `fc8a507e4a2246d2917d3ad4e3111240` has completed.
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9. The workflow terminates as completed and the OrderResult is set to processed.
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@ -43,60 +43,20 @@ class WorkflowConsoleApp:
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print(f'Starting order workflow, purchasing {order_quantity} of {item_name}', flush=True)
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instance_id = wfClient.schedule_new_workflow(
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workflow=order_processing_workflow, input=order.to_json())
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_id = instance_id
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def prompt_for_approval(wfClient: DaprWorkflowClient):
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"""This is a helper function to prompt for approval.
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Not using the prompt here ACTUALLY, as quickstart validation is required to be automated.
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But, in case you may want to run this sample manually, you can uncomment the following lines:
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try:
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signal.alarm(15)
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approved = input(f'(ID = {_id}) requires approval. Approve? [Y/N] ')
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signal.alarm(0) # cancel the alarm
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except TimeoutError:
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approved = "y"
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if state.runtime_status.name == "COMPLETED":
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return
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if approved.lower() == "y":
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wfClient.raise_workflow_event(instance_id=_id, event_name="approval_event", data={'approval': True})
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else:
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wfClient.raise_workflow_event(instance_id=_id, event_name="approval_event", data={'approval': False})
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## Additionally, you would need to import signal and define timeout_error:
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# import signal
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# def timeout_error(*_):
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# raise TimeoutError
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# signal.signal(signal.SIGALRM, timeout_error)
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"""
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wfClient.raise_workflow_event(instance_id=_id, event_name="approval_event", data={'approval': True})
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approval_seeked = False
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start_time = datetime.now()
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while True:
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time_delta = datetime.now() - start_time
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state = wfClient.get_workflow_state(instance_id=_id)
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try:
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state = wfClient.wait_for_workflow_completion(instance_id=instance_id, timeout_in_seconds=30)
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if not state:
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print("Workflow not found!") # not expected
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break
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if state.runtime_status in {WorkflowStatus.COMPLETED, WorkflowStatus.FAILED, WorkflowStatus.TERMINATED}:
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print(f'Workflow completed! Result: {state.runtime_status}', flush=True)
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break
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if time_delta.total_seconds() >= 10:
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state = wfClient.get_workflow_state(instance_id=_id)
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if total_cost > 5000 and state not in {WorkflowStatus.COMPLETED, WorkflowStatus.FAILED, WorkflowStatus.TERMINATED} and not approval_seeked:
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approval_seeked = True
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threading.Thread(target=prompt_for_approval(wfClient), daemon=True).start()
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print("Workflow not found!")
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elif state.runtime_status.name == 'COMPLETED':
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print(f'Workflow completed! Result: {state.serialized_output}')
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else:
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print(f'Workflow failed! Status: {state.runtime_status.name}') # not expected
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except TimeoutError:
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print('*** Workflow timed out!')
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wfr.shutdown()
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def restock_inventory(self, daprClient: DaprClient, baseInventory):
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for key, item in baseInventory.items():
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print(f'item: {item}')
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