Aspire masstransit sample

samples/AspireWithMassTransit/AspireWithMassTransit.ApiService/AspireWithMassTransit.ApiService.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AspireWithMassTransit.ServiceDefaults\AspireWithMassTransit.ServiceDefaults.csproj"/>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MassTransit.RabbitMQ" Version="8.3.1" />
+  </ItemGroup>
+
+</Project>

samples/AspireWithMassTransit/AspireWithMassTransit.ApiService/HelloAspireEventConsumer.cs

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+using MassTransit;
+
+namespace AspireWithMassTransit.ApiService;
+
+public class HelloAspireEventConsumer : IConsumer<HelloAspireEvent>
+{
+    private readonly ILogger<HelloAspireEventConsumer> _logger;
+
+    public HelloAspireEventConsumer(ILogger<HelloAspireEventConsumer> logger)
+    {
+        _logger = logger;
+    }
+
+    public Task Consume(ConsumeContext<HelloAspireEvent> context)
+    {
+        _logger.LogInformation("Received: {Message}", context.Message.Message);
+        return Task.CompletedTask;
+    }
+}
+
+public record HelloAspireEvent(string Message);

samples/AspireWithMassTransit/AspireWithMassTransit.ApiService/Program.cs

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+using AspireWithMassTransit.ApiService;
+using MassTransit;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add service defaults & Aspire client integrations.
+builder.AddServiceDefaults();
+
+// Add services to the container.
+builder.Services.AddProblemDetails();
+
+builder.Services.AddMassTransit(s =>
+{
+    s.AddConsumers(typeof(Program).Assembly);
+    s.UsingRabbitMq((context, cfg) =>
+    {
+        var configuration = context.GetRequiredService<IConfiguration>();
+        var host = configuration.GetConnectionString("messaging");
+
+        cfg.Host(host);
+        cfg.ConfigureEndpoints(context);
+    });
+});
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+app.UseExceptionHandler();
+
+app.MapGet("/", async (IPublishEndpoint publishEndpoint) =>
+{
+    await publishEndpoint.Publish(new HelloAspireEvent("Hello, .NET!"));
+    await publishEndpoint.Publish(new HelloAspireEvent("Hello, Aspire!"));
+
+    return Results.Ok("ok");
+});
+
+app.MapDefaultEndpoints();
+
+app.Run();
+

samples/AspireWithMassTransit/AspireWithMassTransit.ApiService/Properties/launchSettings.json

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+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "launchUrl": "",
+      "applicationUrl": "http://localhost:5575",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "launchUrl": "",
+      "applicationUrl": "https://localhost:7381;http://localhost:5575",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

samples/AspireWithMassTransit/AspireWithMassTransit.ApiService/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

samples/AspireWithMassTransit/AspireWithMassTransit.ApiService/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

samples/AspireWithMassTransit/AspireWithMassTransit.AppHost/AspireWithMassTransit.AppHost.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <Sdk Name="Aspire.AppHost.Sdk" Version="9.0.0"/>
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsAspireHost>true</IsAspireHost>
+    <UserSecretsId>7d4e2632-ca72-4db3-8665-001fb368e89b</UserSecretsId>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AspireWithMassTransit.ApiService\AspireWithMassTransit.ApiService.csproj"/>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Aspire.Hosting.AppHost" Version="9.0.0"/>
+    <PackageReference Include="Aspire.Hosting.RabbitMQ" Version="9.0.0"/>
+  </ItemGroup>
+
+</Project>

samples/AspireWithMassTransit/AspireWithMassTransit.AppHost/Program.cs

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+var builder = DistributedApplication.CreateBuilder(args);
+
+var messaging = builder.AddRabbitMQ("messaging")
+    .WithLifetime(ContainerLifetime.Persistent)
+    .WithManagementPlugin()
+    .WithDataVolume();
+
+var apiService = builder.AddProject<Projects.AspireWithMassTransit_ApiService>("apiservice")
+    .WithReference(messaging);
+
+builder.Build().Run();

samples/AspireWithMassTransit/AspireWithMassTransit.AppHost/Properties/launchSettings.json

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+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:17131;http://localhost:15194",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "DOTNET_ENVIRONMENT": "Development",
+        "DOTNET_DASHBOARD_OTLP_ENDPOINT_URL": "https://localhost:21047",
+        "DOTNET_RESOURCE_SERVICE_ENDPOINT_URL": "https://localhost:22126"
+      }
+    },
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:15194",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "DOTNET_ENVIRONMENT": "Development",
+        "DOTNET_DASHBOARD_OTLP_ENDPOINT_URL": "http://localhost:19101",
+        "DOTNET_RESOURCE_SERVICE_ENDPOINT_URL": "http://localhost:20047"
+      }
+    }
+  }
+}

samples/AspireWithMassTransit/AspireWithMassTransit.AppHost/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

samples/AspireWithMassTransit/AspireWithMassTransit.AppHost/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning",
+      "Aspire.Hosting.Dcp": "Warning"
+    }
+  }
+}

samples/AspireWithMassTransit/AspireWithMassTransit.ServiceDefaults/AspireWithMassTransit.ServiceDefaults.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsAspireSharedProject>true</IsAspireSharedProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <FrameworkReference Include="Microsoft.AspNetCore.App"/>
+
+    <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="8.10.0"/>
+    <PackageReference Include="Microsoft.Extensions.ServiceDiscovery" Version="9.0.0"/>
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.9.0"/>
+    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.9.0"/>
+    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.9.0"/>
+    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.9.0"/>
+    <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.9.0"/>
+  </ItemGroup>
+
+</Project>

samples/AspireWithMassTransit/AspireWithMassTransit.ServiceDefaults/Extensions.cs

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+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Diagnostics.HealthChecks;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Diagnostics.HealthChecks;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.ServiceDiscovery;
+using OpenTelemetry;
+using OpenTelemetry.Metrics;
+using OpenTelemetry.Trace;
+
+namespace Microsoft.Extensions.Hosting;
+
+// Adds common .NET Aspire services: service discovery, resilience, health checks, and OpenTelemetry.
+// This project should be referenced by each service project in your solution.
+// To learn more about using this project, see https://aka.ms/dotnet/aspire/service-defaults
+public static class Extensions
+{
+    public static TBuilder AddServiceDefaults<TBuilder>(this TBuilder builder) where TBuilder : IHostApplicationBuilder
+    {
+        builder.ConfigureOpenTelemetry();
+
+        builder.AddDefaultHealthChecks();
+
+        builder.Services.AddServiceDiscovery();
+
+        builder.Services.ConfigureHttpClientDefaults(http =>
+        {
+            // Turn on resilience by default
+            http.AddStandardResilienceHandler();
+
+            // Turn on service discovery by default
+            http.AddServiceDiscovery();
+        });
+
+        // Uncomment the following to restrict the allowed schemes for service discovery.
+        // builder.Services.Configure<ServiceDiscoveryOptions>(options =>
+        // {
+        //     options.AllowedSchemes = ["https"];
+        // });
+
+        return builder;
+    }
+
+    public static TBuilder ConfigureOpenTelemetry<TBuilder>(this TBuilder builder) where TBuilder : IHostApplicationBuilder
+    {
+        builder.Logging.AddOpenTelemetry(logging =>
+        {
+            logging.IncludeFormattedMessage = true;
+            logging.IncludeScopes = true;
+        });
+
+        builder.Services.AddOpenTelemetry()
+            .WithMetrics(metrics =>
+            {
+                metrics.AddAspNetCoreInstrumentation()
+                    .AddHttpClientInstrumentation()
+                    .AddMeter("MassTransit")
+                    .AddRuntimeInstrumentation();
+            })
+            .WithTracing(tracing =>
+            {
+                tracing.AddAspNetCoreInstrumentation()
+                    .AddSource("MassTransit")
+                    .AddHttpClientInstrumentation();
+            });
+
+        builder.AddOpenTelemetryExporters();
+
+        return builder;
+    }
+
+    private static TBuilder AddOpenTelemetryExporters<TBuilder>(this TBuilder builder) where TBuilder : IHostApplicationBuilder
+    {
+        var useOtlpExporter = !string.IsNullOrWhiteSpace(builder.Configuration["OTEL_EXPORTER_OTLP_ENDPOINT"]);
+
+        if (useOtlpExporter)
+        {
+            builder.Services.AddOpenTelemetry().UseOtlpExporter();
+        }
+
+        return builder;
+    }
+
+    public static TBuilder AddDefaultHealthChecks<TBuilder>(this TBuilder builder) where TBuilder : IHostApplicationBuilder
+    {
+        builder.Services.AddHealthChecks()
+            // Add a default liveness check to ensure app is responsive
+            .AddCheck("self", () => HealthCheckResult.Healthy(), ["live"]);
+
+        return builder;
+    }
+
+    public static WebApplication MapDefaultEndpoints(this WebApplication app)
+    {
+        // Adding health checks endpoints to applications in non-development environments has security implications.
+        // See https://aka.ms/dotnet/aspire/healthchecks for details before enabling these endpoints in non-development environments.
+        if (app.Environment.IsDevelopment())
+        {
+            // All health checks must pass for app to be considered ready to accept traffic after starting
+            app.MapHealthChecks("/health");
+
+            // Only health checks tagged with the "live" tag must pass for app to be considered alive
+            app.MapHealthChecks("/alive", new HealthCheckOptions
+            {
+                Predicate = r => r.Tags.Contains("live")
+            });
+        }
+
+        return app;
+    }
+}

samples/AspireWithMassTransit/AspireWithMassTransit.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AspireWithMassTransit.ApiService", "AspireWithMassTransit.ApiService\AspireWithMassTransit.ApiService.csproj", "{0B88A0EE-6435-4A30-9131-165118F3053C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AspireWithMassTransit.AppHost", "AspireWithMassTransit.AppHost\AspireWithMassTransit.AppHost.csproj", "{665B7823-0444-4F4D-9C41-D43CD50DAEF3}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AspireWithMassTransit.ServiceDefaults", "AspireWithMassTransit.ServiceDefaults\AspireWithMassTransit.ServiceDefaults.csproj", "{77A8E695-50D9-48D4-8ED3-1F458BB31A00}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0B88A0EE-6435-4A30-9131-165118F3053C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0B88A0EE-6435-4A30-9131-165118F3053C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0B88A0EE-6435-4A30-9131-165118F3053C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0B88A0EE-6435-4A30-9131-165118F3053C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{665B7823-0444-4F4D-9C41-D43CD50DAEF3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{665B7823-0444-4F4D-9C41-D43CD50DAEF3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{665B7823-0444-4F4D-9C41-D43CD50DAEF3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{665B7823-0444-4F4D-9C41-D43CD50DAEF3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{77A8E695-50D9-48D4-8ED3-1F458BB31A00}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{77A8E695-50D9-48D4-8ED3-1F458BB31A00}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{77A8E695-50D9-48D4-8ED3-1F458BB31A00}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{77A8E695-50D9-48D4-8ED3-1F458BB31A00}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal