Create a gRPC service for publishing rankings

Tasks/Lab11/RankingService/.dockerignore

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+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**

Tasks/Lab11/RankingService/RankingService.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.10.34928.147
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RankingService", "RankingService\RankingService.csproj", "{DE7F9795-772A-4134-895F-3F65193E86BE}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{DE7F9795-772A-4134-895F-3F65193E86BE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DE7F9795-772A-4134-895F-3F65193E86BE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DE7F9795-772A-4134-895F-3F65193E86BE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DE7F9795-772A-4134-895F-3F65193E86BE}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {6790DB4E-93FA-425B-94D4-36A687BC734A}
+	EndGlobalSection
+EndGlobal

Tasks/Lab11/RankingService/RankingService/Program.cs

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+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+builder.Services.AddGrpc();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+app.MapGrpcService<RankingService.Services.RankingService>();
+app.MapGet("/", () => "Communication with gRPC endpoints must be made through a gRPC client. To learn how to create a client, visit: https://go.microsoft.com/fwlink/?linkid=2086909");
+
+app.Run();

Tasks/Lab11/RankingService/RankingService/Properties/launchSettings.json

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+{
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "http://localhost:8000"
+    },
+    "https": {
+      "commandName": "Project",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "https://localhost:8001;http://localhost:8000"
+    }
+  },
+  "$schema": "http://json.schemastore.org/launchsettings.json"
+}

Tasks/Lab11/RankingService/RankingService/Protos/ranking.proto

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+syntax = "proto3";
+
+option csharp_namespace = "RankingService";
+
+package ranking;
+
+service Ranking {
+  rpc GetRanking (RankingRequest) returns (RankingReply);
+}
+
+message RankingRequest {}
+
+message RankingReply {
+	repeated Competitor competitors = 1;
+}
+
+message Competitor {
+	string name = 1;
+	string time = 2;
+}

Tasks/Lab11/RankingService/RankingService/RankingService.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UserSecretsId>5327ada4-dcdc-48d6-b679-b7202b6adc09</UserSecretsId>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Protobuf Include="Protos\ranking.proto" GrpcServices="Server" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Grpc.AspNetCore" Version="2.57.0" />
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.20.1" />
+  </ItemGroup>
+
+</Project>

Tasks/Lab11/RankingService/RankingService/Services/RankingService.cs

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+using Grpc.Core;
+using RankingService;
+
+namespace RankingService.Services
+{
+    public class RankingService : Ranking.RankingBase
+    {
+        private readonly ILogger<RankingService> _logger;
+
+        private readonly string[] ranks =
+        {
+            "Mueller Stefan,02:31:14",
+            "Marti Adrian,2:30:09",
+            "Kiptum Daniel,2:11:31",
+            "Ancay Tarcis,2:20:02",
+            "Kreibuhl Christian,2:21:47",
+            "Ott Michael,2:33:48",
+            "Menzi Christoph,2:27:26",
+            "Oliver Ruben,2:32:12",
+            "Elmer Beat,2:33:53",
+            "Kuehni Martin,2:33:36"
+        };
+
+        private Lazy<List<Competitor>> competitors;
+
+        public RankingService(ILogger<RankingService> logger)
+        {
+            _logger = logger;
+
+            competitors = new Lazy<List<Competitor>>(
+                () =>
+                {
+                    List<Competitor> result = [];
+
+                    foreach (string rank in ranks)
+                    {
+                        string[] items = rank.Split(',');
+
+                        result.Add(
+                            new()
+                            {
+                                Name = items[0],
+                                Time = items[1]
+                            });
+                    }
+
+                    return result;
+                });
+        }
+
+        public override Task<RankingReply> GetRanking(RankingRequest request, ServerCallContext context)
+        {
+            RankingReply result = new RankingReply();
+            result.Competitors.AddRange(competitors.Value);
+            return Task.FromResult(result);
+        }
+    }
+}

Tasks/Lab11/RankingService/RankingService/appsettings.Development.json

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

Tasks/Lab11/RankingService/RankingService/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*",
+  "Kestrel": {
+    "EndpointDefaults": {
+      "Protocols": "Http2"
+    }
+  }
+}