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Added workflow example for sub-workflows
Signed-off-by: Whit Waldo <whit.waldo@innovian.net>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| using Dapr.Workflow; | ||
| using Microsoft.Extensions.DependencyInjection; | ||
| using Microsoft.Extensions.Hosting; | ||
| using WorkflowSubWorkflow.Workflows; | ||
|
|
||
| var builder = Host.CreateDefaultBuilder(args).ConfigureServices(services => | ||
| { | ||
| services.AddDaprWorkflow(options => | ||
| { | ||
| options.RegisterWorkflow<DemoWorkflow>(); | ||
| options.RegisterWorkflow<DemoSubWorkflow>(); | ||
| }); | ||
| }); | ||
|
|
||
| using var host = builder.Build(); | ||
| await host.StartAsync(); | ||
|
|
||
| await using var scope = host.Services.CreateAsyncScope(); | ||
| var daprWorkflowClient = scope.ServiceProvider.GetRequiredService<DaprWorkflowClient>(); | ||
|
|
||
| var instanceId = $"demo-workflow-{Guid.NewGuid().ToString()[..8]}"; | ||
| await daprWorkflowClient.ScheduleNewWorkflowAsync(nameof(DemoWorkflow), instanceId, instanceId ); | ||
|
|
||
| await daprWorkflowClient.WaitForWorkflowCompletionAsync(instanceId); | ||
| var state = await daprWorkflowClient.GetWorkflowStateAsync(instanceId); | ||
| Console.WriteLine($"Workflow {instanceId}, state: {state.RuntimeStatus}"); | ||
|
|
||
| state = await daprWorkflowClient.GetWorkflowStateAsync($"{instanceId}-sub"); | ||
| Console.WriteLine($"Workflow {instanceId}-sub, state: {state.RuntimeStatus}"); |
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18
examples/Workflow/WorkflowSubWorkflow/WorkflowSubWorkflow.csproj
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| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| </PropertyGroup> | ||
|
|
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| <ItemGroup> | ||
| <PackageReference Include="Microsoft.Extensions.Hosting" /> | ||
| </ItemGroup> | ||
|
|
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\..\src\Dapr.Workflow\Dapr.Workflow.csproj" /> | ||
| </ItemGroup> | ||
|
|
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| </Project> |
20 changes: 20 additions & 0 deletions
20
examples/Workflow/WorkflowSubWorkflow/Workflows/DemoSubWorkflow.cs
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| Original file line number | Diff line number | Diff line change |
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| using Dapr.Workflow; | ||
|
|
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| namespace WorkflowSubWorkflow.Workflows; | ||
|
|
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| internal sealed class DemoSubWorkflow : Workflow<string, bool> | ||
| { | ||
| /// <summary> | ||
| /// Override to implement workflow logic. | ||
| /// </summary> | ||
| /// <param name="context">The workflow context.</param> | ||
| /// <param name="instanceId">The deserialized workflow input.</param> | ||
| /// <returns>The output of the workflow as a task.</returns> | ||
| public override async Task<bool> RunAsync(WorkflowContext context, string instanceId) | ||
| { | ||
| Console.WriteLine($"Workflow {context.InstanceId} started"); | ||
| Console.WriteLine($"Received input: {instanceId}"); | ||
| await context.CreateTimer(TimeSpan.FromSeconds(5)); | ||
| return true; | ||
| } | ||
| } |
21 changes: 21 additions & 0 deletions
21
examples/Workflow/WorkflowSubWorkflow/Workflows/DemoWorkflow.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| using Dapr.Workflow; | ||
|
|
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| namespace WorkflowSubWorkflow.Workflows; | ||
|
|
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| internal sealed class DemoWorkflow : Workflow<string, bool> | ||
| { | ||
| /// <summary> | ||
| /// Override to implement workflow logic. | ||
| /// </summary> | ||
| /// <param name="context">The workflow context.</param> | ||
| /// <param name="instanceId">The deserialized workflow input.</param> | ||
| /// <returns>The output of the workflow as a task.</returns> | ||
| public override async Task<bool> RunAsync(WorkflowContext context, string instanceId) | ||
| { | ||
| Console.WriteLine($"Workflow {instanceId} started"); | ||
| var subInstanceId = instanceId + "-sub"; | ||
| var options = new ChildWorkflowTaskOptions(subInstanceId); | ||
| await context.CallChildWorkflowAsync<bool>(nameof(DemoSubWorkflow), "Hello, sub-workflow", options); | ||
| return true; | ||
| } | ||
| } |