Workflow Authoring: initial methods

all.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.29318.209
+# Visual Studio Version 17
+VisualStudioVersion = 17.3.32929.385
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.Actors", "src\Dapr.Actors\Dapr.Actors.csproj", "{C2DB4B64-B7C3-4FED-8753-C040F677C69A}"
 EndProject
@@ -35,57 +35,63 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		.editorconfig = .editorconfig
 	EndProjectSection
 EndProject
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+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.Actors.AspNetCore.IntegrationTest", "test\Dapr.Actors.AspNetCore.IntegrationTest\Dapr.Actors.AspNetCore.IntegrationTest.csproj", "{95BAF30B-8089-42CE-8530-6DFBCE1F6A07}"
 EndProject
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+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.Actors.AspNetCore.IntegrationTest.App", "test\Dapr.Actors.AspNetCore.IntegrationTest.App\Dapr.Actors.AspNetCore.IntegrationTest.App.csproj", "{1BA7E772-8AA7-4D5A-800D-66B17F62421C}"
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 EndProject
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+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.Extensions.Configuration", "src\Dapr.Extensions.Configuration\Dapr.Extensions.Configuration.csproj", "{B615B353-476C-43B9-A776-B193B0DBD256}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "examples", "examples", "{D687DDC4-66C5-4667-9E3A-FD8B78ECAA78}"
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 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "AspNetCore", "AspNetCore", "{A11DC259-D1DB-4686-AD28-A427D0BABA83}"
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-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GrpcServiceSample", "examples\AspNetCore\GrpcServiceSample\GrpcServiceSample.csproj", "{2EC50C79-782D-4985-ABB1-AD07F35D1621}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "GrpcServiceSample", "examples\AspNetCore\GrpcServiceSample\GrpcServiceSample.csproj", "{2EC50C79-782D-4985-ABB1-AD07F35D1621}"
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 EndProject
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+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SecretStoreConfigurationProviderSample", "examples\AspNetCore\SecretStoreConfigurationProviderSample\SecretStoreConfigurationProviderSample.csproj", "{5BACBA51-03FE-4CE1-B0F5-9E9C2A132FAB}"
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+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ControllerSample", "examples\AspNetCore\ControllerSample\ControllerSample.csproj", "{3160CC92-1D6E-42CB-AE89-9401C8CEC5CB}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Actor", "Actor", "{02374BD0-BF0B-40F8-A04A-C4C4D61D4992}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "IDemoActor", "examples\Actor\IDemoActor\IDemoActor.csproj", "{7957E852-1291-4FAA-9034-FB66CE817FF1}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "IDemoActor", "examples\Actor\IDemoActor\IDemoActor.csproj", "{7957E852-1291-4FAA-9034-FB66CE817FF1}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DemoActor", "examples\Actor\DemoActor\DemoActor.csproj", "{626D74DD-4F37-4F74-87A3-5A6888684F5E}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DemoActor", "examples\Actor\DemoActor\DemoActor.csproj", "{626D74DD-4F37-4F74-87A3-5A6888684F5E}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ActorClient", "examples\Actor\ActorClient\ActorClient.csproj", "{CC0A5C98-ACDE-4139-BA2F-2995A9B8E18C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ActorClient", "examples\Actor\ActorClient\ActorClient.csproj", "{CC0A5C98-ACDE-4139-BA2F-2995A9B8E18C}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Client", "Client", "{A7F41094-8648-446B-AECD-DCC2CC871F73}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StateManagement", "examples\Client\StateManagement\StateManagement.csproj", "{F70AC78E-8925-4770-832A-2FC67A620EB2}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "StateManagement", "examples\Client\StateManagement\StateManagement.csproj", "{F70AC78E-8925-4770-832A-2FC67A620EB2}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceInvocation", "examples\Client\ServiceInvocation\ServiceInvocation.csproj", "{8B570E70-0E73-4042-A4B6-1CC3CC782A65}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ServiceInvocation", "examples\Client\ServiceInvocation\ServiceInvocation.csproj", "{8B570E70-0E73-4042-A4B6-1CC3CC782A65}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PublishSubscribe", "examples\Client\PublishSubscribe\PublishSubscribe.csproj", "{DE6913E3-E5D9-4D1D-95F9-9FED87BD09BC}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PublishSubscribe", "examples\Client\PublishSubscribe\PublishSubscribe.csproj", "{DE6913E3-E5D9-4D1D-95F9-9FED87BD09BC}"
 EndProject
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+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.E2E.Test", "test\Dapr.E2E.Test\Dapr.E2E.Test.csproj", "{4AA9E7B7-36BF-4AAE-BFA3-C9CE8740F4A0}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Dapr.E2E.Test.App", "test\Dapr.E2E.Test.App\Dapr.E2E.Test.App.csproj", "{345FC3FB-D1E9-4AE8-9052-17D20AB01FA2}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.E2E.Test.App", "test\Dapr.E2E.Test.App\Dapr.E2E.Test.App.csproj", "{345FC3FB-D1E9-4AE8-9052-17D20AB01FA2}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Dapr.E2E.Test.Actors", "test\Dapr.E2E.Test.Actors\Dapr.E2E.Test.Actors.csproj", "{2AED1542-A8ED-488D-B6D0-E16AB5D6EF6C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.E2E.Test.Actors", "test\Dapr.E2E.Test.Actors\Dapr.E2E.Test.Actors.csproj", "{2AED1542-A8ED-488D-B6D0-E16AB5D6EF6C}"
 EndProject
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+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.E2E.Test.App.Grpc", "test\Dapr.E2E.Test.App.Grpc\Dapr.E2E.Test.App.Grpc.csproj", "{E8212911-344B-4638-ADC3-B215BCDCAFD1}"
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+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfigurationApi", "examples\Client\ConfigurationApi\ConfigurationApi.csproj", "{F80F837E-D2FC-4FFC-B68F-3CF0EC015F66}"
 EndProject
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+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.E2E.Test.App.ReentrantActors", "test\Dapr.E2E.Test.App.ReentrantActor\Dapr.E2E.Test.App.ReentrantActors.csproj", "{5BE7F505-7D77-4C3A-ABFD-54088774DAA7}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DistributedLock", "examples\Client\DistributedLock\DistributedLock.csproj", "{35031EDB-C0DE-453A-8335-D2EBEA2FC640}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DistributedLock", "examples\Client\DistributedLock\DistributedLock.csproj", "{35031EDB-C0DE-453A-8335-D2EBEA2FC640}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapr.Workflow", "src\Dapr.Workflow\Dapr.Workflow.csproj", "{07578B6C-9B96-4B3D-BA2E-7800EFCA7F99}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Workflow", "Workflow", "{BF3ED6BF-ADF3-4D25-8E89-02FB8D945CA9}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "WorkflowWebApp", "examples\Workflow\WorkflowWebApp\WorkflowWebApp.csproj", "{5C61ABED-7623-4C28-A5C9-C5972A0F669C}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -217,6 +223,14 @@ Global
 		{35031EDB-C0DE-453A-8335-D2EBEA2FC640}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{35031EDB-C0DE-453A-8335-D2EBEA2FC640}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{35031EDB-C0DE-453A-8335-D2EBEA2FC640}.Release|Any CPU.Build.0 = Release|Any CPU
+		{07578B6C-9B96-4B3D-BA2E-7800EFCA7F99}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{07578B6C-9B96-4B3D-BA2E-7800EFCA7F99}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{07578B6C-9B96-4B3D-BA2E-7800EFCA7F99}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{07578B6C-9B96-4B3D-BA2E-7800EFCA7F99}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5C61ABED-7623-4C28-A5C9-C5972A0F669C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5C61ABED-7623-4C28-A5C9-C5972A0F669C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5C61ABED-7623-4C28-A5C9-C5972A0F669C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5C61ABED-7623-4C28-A5C9-C5972A0F669C}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -256,6 +270,9 @@ Global
 		{F80F837E-D2FC-4FFC-B68F-3CF0EC015F66} = {A7F41094-8648-446B-AECD-DCC2CC871F73}
 		{5BE7F505-7D77-4C3A-ABFD-54088774DAA7} = {DD020B34-460F-455F-8D17-CF4A949F100B}
 		{35031EDB-C0DE-453A-8335-D2EBEA2FC640} = {A7F41094-8648-446B-AECD-DCC2CC871F73}
+		{07578B6C-9B96-4B3D-BA2E-7800EFCA7F99} = {27C5D71D-0721-4221-9286-B94AB07B58CF}
+		{BF3ED6BF-ADF3-4D25-8E89-02FB8D945CA9} = {D687DDC4-66C5-4667-9E3A-FD8B78ECAA78}
+		{5C61ABED-7623-4C28-A5C9-C5972A0F669C} = {BF3ED6BF-ADF3-4D25-8E89-02FB8D945CA9}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {65220BF2-EAE1-4CB2-AA58-EBE80768CB40}

examples/Workflow/WorkflowWebApp/Program.cs

@@ -0,0 +1,51 @@
+using Dapr.Workflow;
+
+// The workflow host is a background service that connects to the sidecar over gRPC
+WebApplicationBuilder builder = WebApplication.CreateBuilder(args);
+
+// Dapr workflows are registered as part of the service configuration
+builder.Services.AddDaprWorkflow(options =>
+{
+    // Example of registering a "PlaceOrder" workflow function
+    options.RegisterWorkflow<string, string>("PlaceOrder", implementation: async (context, input) =>
+    {
+        // In real life there are other steps related to placing an order, like reserving
+        // inventory and charging the customer credit card etc. But let's keep it simple ;)
+        return await context.CallActivityAsync<string>("ShipProduct", "Coffee Beans");
+    });
+
+    // Example of registering a "ShipProduct" workflow activity function
+    options.RegisterActivity<string, string>("ShipProduct", implementation: (context, input) =>
+    {
+        return Task.FromResult($"We are shipping {input} to the customer using our hoard of drones!");
+    });
+});
+
+WebApplication app = builder.Build();
+
+// POST starts new workflow instances
+app.MapPost("/order", async (HttpContext context, WorkflowClient client) =>
+{
+    string id = Guid.NewGuid().ToString()[..8];
+    await client.ScheduleNewWorkflowAsync("PlaceOrder", id);
+
+    // return an HTTP 202 and a Location header to be used for status query
+    return Results.AcceptedAtRoute("GetOrderEndpoint", new { id });
+});
+
+// GET fetches metadata for specific order workflow instances
+app.MapGet("/order/{id}", async (string id, WorkflowClient client) =>
+{
+    WorkflowMetadata metadata = await client.GetWorkflowMetadataAsync(id, getInputsAndOutputs: true);
+    if (metadata.Exists)
+    {
+        return Results.Ok(metadata);
+    }
+    else
+    {
+        return Results.NotFound($"No workflow created for order with ID = '{id}' was found.");
+    }
+}).WithName("GetOrderEndpoint");
+
+app.Run("http://0.0.0.0:10080");
+

examples/Workflow/WorkflowWebApp/Properties/launchSettings.json

@@ -0,0 +1,12 @@
+{
+  "profiles": {
+    "OrderingWebApi": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "applicationUrl": "https://localhost:10080;http://localhost:10080"
+    }
+  }
+}

examples/Workflow/WorkflowWebApp/WorkflowWebApp.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\src\Dapr.Workflow\Dapr.Workflow.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFrameworks>net6</TargetFrameworks>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+
+</Project>

examples/Workflow/WorkflowWebApp/demo.http

@@ -0,0 +1,6 @@
+### Create new order
+POST http://localhost:8080/workflow
+Content-Type: application/json
+
+### Query placeholder
+GET http://localhost:8080/workflow/XXX

src/Dapr.Workflow/Dapr.Workflow.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <!-- NuGet configuration -->
+  <PropertyGroup>
+    <TargetFrameworks>netcoreapp3.1;net5;net6</TargetFrameworks>
+    <Nullable>enable</Nullable>
+    <PackageId>Dapr.Workflow</PackageId>
+    <Title>Dapr Workflow Authoring SDK</Title>
+    <Description>Dapr Workflow SDK for building workflows as code with Dapr</Description>
+    <VersionPrefix>0.1.0</VersionPrefix>
+    <VersionSuffix>alpha</VersionSuffix>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.DurableTask.Client.Grpc" Version="1.0.0-rc.1" />
+    <PackageReference Include="Microsoft.DurableTask.Worker.Grpc" Version="1.0.0-rc.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Dapr.Client\Dapr.Client.csproj" />
+    <ProjectReference Include="..\Dapr.AspNetCore\Dapr.AspNetCore.csproj" />
+  </ItemGroup>
+
+</Project>

src/Dapr.Workflow/WorkflowActivityContext.cs

@@ -0,0 +1,43 @@
+// ------------------------------------------------------------------------
+// Copyright 2022 The Dapr Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//     http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// ------------------------------------------------------------------------
+
+namespace Dapr.Workflow
+{
+    using System;
+    using System.Threading;
+    using System.Threading.Tasks;
+    using Microsoft.DurableTask;
+
+    /// <summary>
+    /// Defines properties and methods for task activity context objects.
+    /// </summary>
+    public class WorkflowActivityContext
+    {
+        readonly TaskActivityContext innerContext;
+
+        internal WorkflowActivityContext(TaskActivityContext innerContext)
+        {
+            this.innerContext = innerContext ?? throw new ArgumentNullException(nameof(innerContext));
+        }
+
+        /// <summary>
+        /// Gets the name of the activity.
+        /// </summary>
+        public TaskName Name => this.innerContext.Name;
+
+        /// <summary>
+        /// Gets the unique ID of the current workflow instance.
+        /// </summary>
+        public string InstanceId => this.innerContext.InstanceId;
+    }
+}