mirror of https://github.com/dapr/docs.git
add python tab to how-to
Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com>
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Hannah Hunter
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@ -81,10 +81,12 @@ It also includes a `RunAsync` method that does the heavy lifting of the workflow
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Compose the workflow activities into a workflow.
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{{< tabs ".NET" >}}
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{{< tabs ".NET" Python >}}
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{{% codetab %}}
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<!--csharp-->
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[In the following example](https://github.com/dapr/dotnet-sdk/blob/master/examples/Workflow/WorkflowConsoleApp/Program.cs), for a basic ASP.NET order processing application using the .NET SDK, your project code would include:
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- A NuGet package called `Dapr.Workflow` to receive the .NET SDK capabilities
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@ -152,8 +154,79 @@ app.Run();
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{{% /codetab %}}
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{{< /tabs >}}
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{{% codetab %}}
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<!--python-->
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[In the following example](todo), for a basic Python order processing application using the Python SDK, your project code would include:
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- A Python package called `DaprClient` to receive the Python SDK capabilities
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- A builder with an extension method called `todo`
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- This will allow you to register workflows and workflow activities (tasks that workflows can schedule)
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- HTTP API calls
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- **start_workflow**: Start an instance of a workflow
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- **get_workflow**: Get information on a single workflow
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- **terminate_workflow**: Terminate or stop a particular instance of a workflow
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- **raise_event**: Raise an event on a workflow
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- **pause_workflow**: Pauses or suspends a workflow instance that can later be resumed
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- **resume_workflow**: Resumes a paused workflow instance
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- **purge_workflow**: Removes all metadata related to a specific workflow instance
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```python
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from dapr.clients import DaprClient
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from dapr.clients.grpc._helpers import to_bytes
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# ...
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# Dapr Workflows are registered as part of the service configuration
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with DaprClient() as d:
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instanceId = "RRLINSTANCEID35"
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workflowComponent = "dapr"
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workflowName = "PlaceOrder"
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workflowOptions = dict()
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workflowOptions["task_queue"] = "testQueue"
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inventoryItem = ("Computers", 5, 10)
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item2 = "paperclips"
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encoded_data = b''.join(bytes(str(element), 'UTF-8') for element in item2)
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encoded_data2 = json.dumps(item2).encode("UTF-8")
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# ...
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# Start the workflow
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start_resp = d.start_workflow(instance_id=instanceId, workflow_component=workflowComponent,
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workflow_name=workflowName, input=encoded_data2, workflow_options=workflowOptions)
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print(f"Attempting to start {workflowName}")
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print(f"start_resp {start_resp.instance_id}")
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getResponse = d.get_workflow(instance_id=instanceId, workflow_component=workflowComponent)
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print(f"Get response from {workflowName} after start call: {getResponse.runtime_status}")
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# Pause Test
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d.pause_workflow(instance_id=instanceId, workflow_component=workflowComponent)
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getResponse = d.get_workflow(instance_id=instanceId, workflow_component=workflowComponent)
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print(f"Get response from {workflowName} after pause call: {getResponse.runtime_status}")
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# Resume Test
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d.resume_workflow(instance_id=instanceId, workflow_component=workflowComponent)
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getResponse = d.get_workflow(instance_id=instanceId, workflow_component=workflowComponent)
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print(f"Get response from {workflowName} after resume call: {getResponse.runtime_status}")
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# Terminate Test
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d.terminate_workflow(instance_id=instanceId, workflow_component=workflowComponent)
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getResponse = d.get_workflow(instance_id=instanceId, workflow_component=workflowComponent)
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print(f"Get response from {workflowName} after terminate call: {getResponse.runtime_status}")
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# Purge Test
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d.purge_workflow(instance_id=instanceId, workflow_component=workflowComponent)
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getResponse = d.get_workflow(instance_id=instanceId, workflow_component=workflowComponent)
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print(f"Get response from {workflowName} after purge call: {getResponse}")
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```
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{{% /codetab %}}
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{{< /tabs >}}
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{{% alert title="Important" color="warning" %}}
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@ -170,4 +243,6 @@ Now that you've authored a workflow, learn how to manage it.
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## Related links
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- [Workflow overview]({{< ref workflow-overview.md >}})
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- [Workflow API reference]({{< ref workflow_api.md >}})
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- [Try out the .NET example](https://github.com/dapr/dotnet-sdk/tree/master/examples/Workflow)
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- Try out the full SDK examples:
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- [.NET example](https://github.com/dapr/dotnet-sdk/tree/master/examples/Workflow)
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- [Python example](todo)
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