127 lines
3.6 KiB
C#
127 lines
3.6 KiB
C#
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using NLog;
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using System.Net;
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using System.Reflection;
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using System.Text.Json.Serialization;
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namespace ChatRoom;
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public class Server
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{
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/// <summary>
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/// Logger for this class.
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/// </summary>
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Logger log = LogManager.GetCurrentClassLogger();
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/// <summary>
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/// Program entry point.
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/// </summary>
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/// <param name="args">Command line arguments.</param>
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public static void Main(string[] args)
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{
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var self = new Server();
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self.Run(args);
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}
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/// <summary>
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/// Program body.
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/// </summary>
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/// <param name="args">Command line arguments.</param>
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private void Run(string[] args)
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{
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//configure logging
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ConfigureLogging();
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//indicate server is about to start
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log.Info("Server is about to start");
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//start the server
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StartServer(args);
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}
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/// <summary>
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/// Configure loggin subsystem.
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/// </summary>
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private void ConfigureLogging()
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{
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var config = new NLog.Config.LoggingConfiguration();
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var console =
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new NLog.Targets.ConsoleTarget("console")
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{
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Layout = @"${date:format=HH\:mm\:ss}|${level}| ${message} ${exception}"
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};
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config.AddTarget(console);
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config.AddRuleForAllLevels(console);
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LogManager.Configuration = config;
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}
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/// <summary>
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/// Starts integrated server.
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/// </summary>
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/// <param name="args">Command line arguments.</param>
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public void StartServer(string[] args)
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{
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//create web app builder
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var builder = WebApplication.CreateBuilder(args);
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//configure integrated server
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builder.WebHost.ConfigureKestrel(opts => {
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opts.Listen(IPAddress.Loopback, 5000);
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});
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//add and configure swagger documentation generator (http://127.0.0.1:5000/swagger/)
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builder.Services.AddSwaggerGen(opts => {
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//include code comments in swagger documentation
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var xmlFilename = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
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opts.IncludeXmlComments(Path.Combine(AppContext.BaseDirectory, xmlFilename));
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});
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//turn on support for web api controllers
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builder.Services
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.AddControllers()
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.AddJsonOptions(opts => {
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//this makes enumeration values to be strings instead of integers in opeanapi doc
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opts.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter());
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});
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//add CORS policies
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builder.Services.AddCors(cr => {
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//allow everything from everywhere
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cr.AddPolicy("allowAll", cp => {
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cp.AllowAnyOrigin();
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cp.AllowAnyMethod();
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cp.AllowAnyHeader();
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});
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});
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//publish the background logic as (an internal) service through dependency injection,
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//otherwise it will not start until the first client calls into controller
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builder.Services.AddSingleton(new ChatRoomLogic());
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//build the server
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var app = builder.Build();
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//turn CORS policy on
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app.UseCors("allowAll");
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//turn on support for swagger doc web page
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app.UseSwagger();
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app.UseSwaggerUI();
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//turn on request routing
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app.UseRouting();
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//configure routes
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app.MapControllerRoute(
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name: "default",
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pattern: "{controller}/{action=Index}/{id?}"
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);
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//run the server
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app.Run();
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// app.RunAsync(); //use this if you need to implement background processing in the main thread
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}
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}
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