Build auth API

src/Robware.Api.Auth/Controllers/AuthController.cs

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+using System;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+using Robware.Api.Auth.Models;
+using Robware.Auth;
+
+namespace Robware.Api.Auth.Controllers {
+	[ApiController]
+	[Route("[controller]")]
+	public class AuthController : ControllerBase {
+		private readonly ILogger<AuthController> _logger;
+		private readonly IAuthenticator _authenticator;
+
+		public AuthController(ILogger<AuthController> logger, IAuthenticator authenticator) {
+			_logger = logger;
+			_authenticator = authenticator;
+		}
+
+		[HttpPost(nameof(Authenticate))]
+		public async Task<ActionResult<User>> Authenticate(LoginRequest request) {
+			var (result, user) = await _authenticator.Authenticate(request.Username, request.Password);
+			switch (result) {
+				case AuthenticationResult.Success:
+					return user;
+				case AuthenticationResult.NotFound:
+					return NotFound();
+				case AuthenticationResult.IncorrectPassword:
+					return Unauthorized();
+				default:
+					throw new ArgumentOutOfRangeException();
+			}
+		}
+	}
+}

src/Robware.Api.Auth/Models/LoginRequest.cs

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+namespace Robware.Api.Auth.Models {
+	public class LoginRequest {
+		public string Username { get; set; }
+		public string Password { get; set; }
+	}
+}

src/Robware.Api.Auth/Program.cs

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+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
+
+namespace Robware.Api.Auth {
+	public class Program {
+		public static void Main(string[] args) =>
+			Host.CreateDefaultBuilder(args)
+				.ConfigureWebHostDefaults(webBuilder => {
+					webBuilder.UseStartup<Startup>();
+				}).Build().Run();
+	}
+}

src/Robware.Api.Auth/Properties/launchSettings.json

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+{
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:61069",
+      "sslPort": 44309
+    }
+  },
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "Robware.Api.Auth": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "weatherforecast",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "applicationUrl": "https://localhost:5001;http://localhost:5000"
+    }
+  }
+}

src/Robware.Api.Auth/Robware.Api.Auth.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Robware.Auth\Robware.Auth.csproj" />
+    <ProjectReference Include="..\Robware.Data\Robware.Data.csproj" />
+  </ItemGroup>
+
+
+</Project>

src/Robware.Api.Auth/Startup.cs

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+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Robware.Auth;
+using Robware.Data;
+
+namespace Robware.Api.Auth {
+	public class Startup {
+		public Startup(IConfiguration configuration) {
+			Configuration = configuration;
+		}
+
+		public IConfiguration Configuration { get; }
+
+		// This method gets called by the runtime. Use this method to add services to the container.
+		public void ConfigureServices(IServiceCollection services) {
+			services.AddControllers();
+
+			services.AddSingleton<ICryptographyProvider, CryptographyProvider>()
+			        .AddSingleton<IAuthenticator, Authenticator>()
+			        .AddSingleton<IDatabaseProvider>(new MySQLDatabaseProvider(Configuration.GetConnectionString("database")))
+			        .AddSingleton<IUsers, UserRepository>();
+		}
+
+		// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
+		public void Configure(IApplicationBuilder app, IWebHostEnvironment env) {
+			if (env.IsDevelopment()) {
+				app.UseDeveloperExceptionPage();
+			}
+
+			app.UseHttpsRedirection();
+
+			app.UseRouting();
+
+			app.UseAuthorization();
+
+			app.UseEndpoints(endpoints => {
+				endpoints.MapControllers();
+			});
+		}
+	}
+}

src/Robware.Api.Auth/appsettings.Development.json

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+{
+	"Logging": {
+		"LogLevel": {
+			"Default": "Information",
+			"Microsoft": "Warning",
+			"Microsoft.Hosting.Lifetime": "Information"
+		}
+	},
+	"ConnectionStrings": {
+		"database": "Server=localhost;User ID=user;Password=pass;Database=db"
+	}
+}

src/Robware.Api.Auth/appsettings.json

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+{
+	"Logging": {
+		"LogLevel": {
+			"Default": "Information",
+			"Microsoft": "Warning",
+			"Microsoft.Hosting.Lifetime": "Information"
+		}
+	},
+	"Kestrel": {
+		"EndPoints": {
+			"Http": {
+				"Url": "http://0.0.0.0:5003"
+			}
+		}
+	},
+	"AllowedHosts": "*",
+	"ConnectionStrings": {
+		"database": "<DatabaseConnectionString>"
+	}
+}