chore: extract rate limiting settings to configuration

Author: nanotaboada

src/Dotnet.Samples.AspNetCore.WebApi/Configurations/RateLimiterConfiguration.cs

@@ -0,0 +1,25 @@
+namespace Dotnet.Samples.AspNetCore.WebApi.Configurations;
+
+/// <summary>
+/// Configuration options for the Fixed Window Rate Limiter.
+/// </summary>
+public class RateLimiterConfiguration
+{
+    /// <summary>
+    /// Gets or sets the maximum number of permits that can be leased per window.
+    /// Default value is 60 requests.
+    /// </summary>
+    public int PermitLimit { get; set; } = 60;
+
+    /// <summary>
+    /// Gets or sets the time window in seconds for rate limiting.
+    /// Default value is 60 seconds (1 minute).
+    /// </summary>
+    public int WindowSeconds { get; set; } = 60;
+
+    /// <summary>
+    /// Gets or sets the maximum number of requests that can be queued when the permit limit is exceeded.
+    /// A value of 0 means no queuing (default).
+    /// </summary>
+    public int QueueLimit { get; set; } = 0;
+}

src/Dotnet.Samples.AspNetCore.WebApi/Extensions/ServiceCollectionExtensions.cs

@@ -105,7 +105,9 @@ IConfiguration configuration
     {
         services.AddSwaggerGen(options =>
         {
-            options.SwaggerDoc("v1", configuration.GetSection("OpenApiInfo").Get<OpenApiInfo>());
+            var openApiInfo = configuration.GetSection("OpenApiInfo").Get<OpenApiInfo>();
+
+            options.SwaggerDoc("v1", openApiInfo);
             options.IncludeXmlComments(SwaggerUtilities.ConfigureXmlCommentsFilePath());
             options.AddSecurityDefinition("Bearer", SwaggerUtilities.ConfigureSecurityDefinition());
             options.OperationFilter<AuthorizeCheckOperationFilter>();
@@ -159,9 +161,17 @@ public static IServiceCollection RegisterPlayerRepository(this IServiceCollectio
     /// <see href="https://learn.microsoft.com/en-us/aspnet/core/performance/rate-limit"/>
     /// </summary>
     /// <param name="services">The IServiceCollection instance.</param>
+    /// <param name="configuration">The application configuration instance.</param>
     /// <returns>The IServiceCollection for method chaining.</returns>
-    public static IServiceCollection AddFixedWindowRateLimiter(this IServiceCollection services)
+    public static IServiceCollection AddFixedWindowRateLimiter(
+        this IServiceCollection services,
+        IConfiguration configuration
+    )
     {
+        var settings =
+            configuration.GetSection("RateLimiter").Get<RateLimiterConfiguration>()
+            ?? new RateLimiterConfiguration();
+
         services.AddRateLimiter(options =>
         {
             options.GlobalLimiter = PartitionedRateLimiter.Create<HttpContext, string>(
@@ -173,10 +183,10 @@ public static IServiceCollection AddFixedWindowRateLimiter(this IServiceCollecti
                         partitionKey: partitionKey,
                         factory: _ => new FixedWindowRateLimiterOptions
                         {
-                            PermitLimit = 60,
-                            Window = TimeSpan.FromSeconds(60),
+                            PermitLimit = settings.PermitLimit,
+                            Window = TimeSpan.FromSeconds(settings.WindowSeconds),
                             QueueProcessingOrder = QueueProcessingOrder.OldestFirst,
-                            QueueLimit = 0
+                            QueueLimit = settings.QueueLimit
                         }
                     );
                 }

src/Dotnet.Samples.AspNetCore.WebApi/Program.cs

@@ -26,7 +26,7 @@
 builder.Services.AddControllers();
 builder.Services.AddValidators();
 builder.Services.AddCorsDefaultPolicy(builder.Environment);
-builder.Services.AddFixedWindowRateLimiter();
+builder.Services.AddFixedWindowRateLimiter(builder.Configuration);
 
 if (builder.Environment.IsDevelopment())
 {

src/Dotnet.Samples.AspNetCore.WebApi/appsettings.Development.json

@@ -33,5 +33,10 @@
       "Name": "MIT License",
       "Url": "https://opensource.org/license/mit"
     }
+  },
+  "RateLimiter": {
+    "PermitLimit": 60,
+    "WindowSeconds": 60,
+    "QueueLimit": 0
   }
 }

src/Dotnet.Samples.AspNetCore.WebApi/appsettings.json

@@ -33,5 +33,10 @@
       "Name": "MIT License",
       "Url": "https://opensource.org/license/mit"
     }
+  },
+  "RateLimiter": {
+    "PermitLimit": 60,
+    "WindowSeconds": 60,
+    "QueueLimit": 0
   }
 }