Added a retry handler into the solution. We can now retry failed api requests.

this should resolve #202 and start on #208

PlexRequests.Api/PlexApi.cs

@@ -23,6 +23,9 @@
 //    OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 //    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //  ************************************************************************/
+using Polly;
+
+
 #endregion
 using System;
 
@@ -67,7 +70,14 @@ namespace PlexRequests.Api
             request.AddJsonBody(userModel);
 
             var api = new ApiRequest();
-            return api.Execute<PlexAuthentication>(request, new Uri("https://plex.tv/users/sign_in.json"));
+
+			var policy = RetryHandler.RetryAndWaitPolicy (new TimeSpan[] { 
+				TimeSpan.FromSeconds (2),
+				TimeSpan.FromSeconds(5),
+				TimeSpan.FromSeconds(10)
+			}, (exception, timespan) => Log.Error (exception, "Exception when calling SignIn for Plex, Retrying {0}", timespan));
+
+			return (PlexAuthentication)policy.Execute(() => api.Execute<PlexAuthentication>(request, new Uri("https://plex.tv/users/sign_in.json")));
         }
 
         public PlexFriends GetUsers(string authToken)
@@ -80,7 +90,13 @@ namespace PlexRequests.Api
             AddHeaders(ref request, authToken);
 
             var api = new ApiRequest();
-            var users = api.ExecuteXml<PlexFriends>(request, new Uri("https://plex.tv/pms/friends/all"));
+			var policy = RetryHandler.RetryAndWaitPolicy (new TimeSpan[] { 
+				TimeSpan.FromSeconds (2),
+				TimeSpan.FromSeconds(5),
+				TimeSpan.FromSeconds(10)
+			}, (exception, timespan) => Log.Error (exception, "Exception when calling GetUsers for Plex, Retrying {0}", timespan));
+
+			var users = (PlexFriends)policy.Execute(() =>api.ExecuteXml<PlexFriends>(request, new Uri("https://plex.tv/pms/friends/all")));
 
             return users;
         }
@@ -104,7 +120,13 @@ namespace PlexRequests.Api
             AddHeaders(ref request, authToken);
 
             var api = new ApiRequest();
-            var search = api.ExecuteXml<PlexSearch>(request, plexFullHost);
+			var policy = RetryHandler.RetryAndWaitPolicy (new TimeSpan[] { 
+				TimeSpan.FromSeconds (2),
+				TimeSpan.FromSeconds(5),
+				TimeSpan.FromSeconds(10)
+			}, (exception, timespan) => Log.Error (exception, "Exception when calling SearchContent for Plex, Retrying {0}", timespan));
+
+			var search = (PlexSearch)policy.Execute(() => api.ExecuteXml<PlexSearch>(request, plexFullHost));
 
             return search;
         }
@@ -117,9 +139,14 @@ namespace PlexRequests.Api
             };
 
             AddHeaders(ref request, authToken);
+			var policy = RetryHandler.RetryAndWaitPolicy (new TimeSpan[] { 
+				TimeSpan.FromSeconds (2),
+				TimeSpan.FromSeconds(5),
+				TimeSpan.FromSeconds(10)
+			}, (exception, timespan) => Log.Error (exception, "Exception when calling GetStatus for Plex, Retrying {0}", timespan));
 
             var api = new ApiRequest();
-            var users = api.ExecuteXml<PlexStatus>(request, uri);
+			var users = (PlexStatus)policy.Execute(() => api.ExecuteXml<PlexStatus>(request, uri));
 
             return users;
         }
@@ -133,8 +160,15 @@ namespace PlexRequests.Api
 
             AddHeaders(ref request, authToken);
 
+			var policy = RetryHandler.RetryAndWaitPolicy (new TimeSpan[] { 
+				TimeSpan.FromSeconds (2),
+				TimeSpan.FromSeconds(5),
+				TimeSpan.FromSeconds(10)
+			}, (exception, timespan) => Log.Error (exception, "Exception when calling GetAccount for Plex, Retrying: {0}", timespan));
+
+
             var api = new ApiRequest();
-            var account = api.ExecuteXml<PlexAccount>(request, new Uri("https://plex.tv/users/account"));
+			var account = (PlexAccount)policy.Execute(() => api.ExecuteXml<PlexAccount>(request, new Uri("https://plex.tv/users/account")));
 
             return account;
         }
@@ -152,8 +186,13 @@ namespace PlexRequests.Api
             var api = new ApiRequest();
             try
             {
+				var policy = RetryHandler.RetryAndWaitPolicy (new TimeSpan[] { 
+					TimeSpan.FromSeconds (5),
+					TimeSpan.FromSeconds(10),
+					TimeSpan.FromSeconds(30)
+				}, (exception, timespan) => Log.Error (exception, "Exception when calling GetLibrarySections for Plex, Retrying {0}", timespan));
 
-                return api.ExecuteXml<PlexLibraries>(request, plexFullHost);
+				return (PlexLibraries)policy.Execute(() => api.ExecuteXml<PlexLibraries>(request, plexFullHost));
             }
             catch (ApiRequestException)
             {
@@ -176,8 +215,13 @@ namespace PlexRequests.Api
             var api = new ApiRequest();
             try
             {
+				var policy = RetryHandler.RetryAndWaitPolicy (new TimeSpan[] { 
+					TimeSpan.FromSeconds (5),
+					TimeSpan.FromSeconds(10),
+					TimeSpan.FromSeconds(30)
+				}, (exception, timespan) => Log.Error (exception, "Exception when calling GetLibrary for Plex, Retrying {0}", timespan));
 
-                return api.ExecuteXml<PlexSearch>(request, plexFullHost);
+				return (PlexSearch)policy.Execute(() => api.ExecuteXml<PlexSearch>(request, plexFullHost));
             }
             catch (ApiRequestException)
             {

PlexRequests.Api/PlexRequests.Api.csproj

@@ -57,6 +57,9 @@
     <Reference Include="TMDbLib, Version=0.9.0.0, Culture=neutral, PublicKeyToken=null">
       <HintPath>..\packages\TMDbLib.0.9.0.0-alpha\lib\net45\TMDbLib.dll</HintPath>
     </Reference>
+    <Reference Include="Polly">
+      <HintPath>..\packages\Polly-Signed.4.2.0\lib\net45\Polly.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="ApiRequest.cs" />
@@ -81,6 +84,7 @@
     <Compile Include="TheTvDbApi.cs" />
     <Compile Include="TvMazeApi.cs" />
     <Compile Include="TvMazeBase.cs" />
+    <Compile Include="RetryHandler.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />

PlexRequests.Api/RetryHandler.cs

@@ -0,0 +1,34 @@
+using System;
+using Polly.Retry;
+using Polly;
+
+namespace PlexRequests.Api
+{
+	public static class RetryHandler
+	{
+		public static RetryPolicy RetryAndWaitPolicy(TimeSpan[] TimeSpan, Action action)
+		{
+			var policy = Policy.Handle<Exception> ()
+				.WaitAndRetry(TimeSpan, (exception, timeSpan) => action());
+			
+			return policy;
+		}
+
+		public static RetryPolicy RetryAndWaitPolicy(TimeSpan[] TimeSpan)
+		{
+			var policy = Policy.Handle<Exception> ()
+				.WaitAndRetry(TimeSpan);
+
+			return policy;
+		}
+
+		public static RetryPolicy RetryAndWaitPolicy(TimeSpan[] TimeSpan, Action<Exception, TimeSpan> action)
+		{
+			var policy = Policy.Handle<Exception> ()
+				.WaitAndRetry(TimeSpan, (exception, timeSpan) => action(exception, timeSpan));
+
+			return policy;
+		}
+	}
+}
+

PlexRequests.Api/packages.config

@@ -4,6 +4,7 @@
   <package id="Nancy" version="1.4.3" targetFramework="net452" />
   <package id="Newtonsoft.Json" version="8.0.2" targetFramework="net452" />
   <package id="NLog" version="4.2.3" targetFramework="net452" />
+  <package id="Polly-Signed" version="4.2.0" targetFramework="net45" />
   <package id="RestSharp" version="105.2.3" targetFramework="net452" requireReinstallation="True" />
   <package id="TMDbLib" version="0.9.0.0-alpha" targetFramework="net452" />
 </packages>

PlexRequests.UI/Validators/SonarrValidator.cs

@@ -38,7 +38,6 @@ namespace PlexRequests.UI.Validators
             RuleFor(request => request.Ip).NotEmpty().WithMessage("You must specify a IP/Host name.");
             RuleFor(request => request.Port).NotEmpty().WithMessage("You must specify a Port.");
             RuleFor(request => request.QualityProfile).NotEmpty().WithMessage("You must specify a Quality Profile.");
-            RuleFor(request => request.RootPath).NotEmpty().WithMessage("You must specify a Root Path.");
         }
     }
 }