Fixed: Tweaked ratelimit logic for rarbg api.

src/NzbDrone.Common/Http/HttpRequestBuilder.cs

@@ -22,6 +22,7 @@ namespace NzbDrone.Common.Http
         public bool UseSimplifiedUserAgent { get; set; }
         public bool AllowAutoRedirect { get; set; }
         public bool ConnectionKeepAlive { get; set; }
+        public TimeSpan RateLimit { get; set; }
         public bool LogResponseContent { get; set; }
         public NetworkCredential NetworkCredential { get; set; }
         public Dictionary<string, string> Cookies { get; private set; }
@@ -103,6 +104,7 @@ namespace NzbDrone.Common.Http
             request.UseSimplifiedUserAgent = UseSimplifiedUserAgent;
             request.AllowAutoRedirect = AllowAutoRedirect;
             request.ConnectionKeepAlive = ConnectionKeepAlive;
+            request.RateLimit = RateLimit;
             request.LogResponseContent = LogResponseContent;
 
             if (NetworkCredential != null)
@@ -245,6 +247,13 @@ namespace NzbDrone.Common.Http
             return this;
         }
 
+        public virtual HttpRequestBuilder WithRateLimit(double seconds)
+        {
+            RateLimit = TimeSpan.FromSeconds(seconds);
+
+            return this;
+        }
+
         public virtual HttpRequestBuilder Post()
         {
             Method = HttpMethod.POST;

src/NzbDrone.Core/Indexers/Rarbg/RarbgTokenProvider.cs

@@ -30,7 +30,8 @@ namespace NzbDrone.Core.Indexers.Rarbg
             return _tokenCache.Get(settings.BaseUrl, () =>
                 {
                     var requestBuilder = new HttpRequestBuilder(settings.BaseUrl.Trim('/'))
-                        .Resource("/pubapi_v2.php?get_token=get_token")
+                        .WithRateLimit(3.0)
+                        .Resource("/pubapi_v2.php?get_token=get_token&app_id=Sonarr")
                         .Accept(HttpAccept.Json);
 
                     if (settings.CaptchaToken.IsNotNullOrWhiteSpace())