Fixed issue where qos was being created for each request so circuit breaker was never stopping traffic going to downstream service.

src/Ocelot/Configuration/Builder/QoSOptionsBuilder.cs

@@ -0,0 +1,34 @@
+namespace Ocelot.Configuration.Builder
+{
+    public class QoSOptionsBuilder
+    {
+        private int _exceptionsAllowedBeforeBreaking;
+
+        private int _durationOfBreak;
+
+        private int _timeoutValue;
+
+        public QoSOptionsBuilder WithExceptionsAllowedBeforeBreaking(int exceptionsAllowedBeforeBreaking)
+        {
+            _exceptionsAllowedBeforeBreaking = exceptionsAllowedBeforeBreaking;
+            return this;
+        }
+
+        public QoSOptionsBuilder WithDurationOfBreak(int durationOfBreak)
+        {
+            _durationOfBreak = durationOfBreak;
+            return this;
+        }
+
+        public QoSOptionsBuilder WithTimeoutValue(int timeoutValue)
+        {
+            _timeoutValue = timeoutValue;
+            return this;
+        }
+
+        public QoSOptions Build()
+        {
+            return new QoSOptions(_exceptionsAllowedBeforeBreaking, _durationOfBreak, _timeoutValue);
+        }
+    }
+}

src/Ocelot/Configuration/Creator/FileOcelotConfigurationCreator.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Net.Http;
 using System.Text;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
@@ -10,9 +9,9 @@ using Ocelot.Configuration.File;
 using Ocelot.Configuration.Parser;
 using Ocelot.Configuration.Validator;
 using Ocelot.LoadBalancer.LoadBalancers;
+using Ocelot.Requester.QoS;
 using Ocelot.Responses;
 using Ocelot.Utilities;
-using Ocelot.Values;
 
 namespace Ocelot.Configuration.Creator
 {
@@ -26,11 +25,14 @@ namespace Ocelot.Configuration.Creator
         private const string RegExMatchEverything = ".*";
         private const string RegExMatchEndString = "$";
         private const string RegExIgnoreCase = "(?i)";
+        private const string RegExForwardSlashOnly = "^/$";
 
         private readonly IClaimToThingConfigurationParser _claimToThingConfigurationParser;
         private readonly ILogger<FileOcelotConfigurationCreator> _logger;
         private readonly ILoadBalancerFactory _loadBalanceFactory;
         private readonly ILoadBalancerHouse _loadBalancerHouse;
+        private readonly IQoSProviderFactory _qoSProviderFactory;
+        private readonly IQosProviderHouse _qosProviderHouse;
 
         public FileOcelotConfigurationCreator(
             IOptions<FileConfiguration> options, 
@@ -38,10 +40,14 @@ namespace Ocelot.Configuration.Creator
             IClaimToThingConfigurationParser claimToThingConfigurationParser, 
             ILogger<FileOcelotConfigurationCreator> logger,
             ILoadBalancerFactory loadBalancerFactory,
-            ILoadBalancerHouse loadBalancerHouse)
+            ILoadBalancerHouse loadBalancerHouse, 
+            IQoSProviderFactory qoSProviderFactory, 
+            IQosProviderHouse qosProviderHouse)
         {
             _loadBalanceFactory = loadBalancerFactory;
             _loadBalancerHouse = loadBalancerHouse;
+            _qoSProviderFactory = qoSProviderFactory;
+            _qosProviderHouse = qosProviderHouse;
             _options = options;
             _configurationValidator = configurationValidator;
             _claimToThingConfigurationParser = claimToThingConfigurationParser;
@@ -86,17 +92,17 @@ namespace Ocelot.Configuration.Creator
         {
             var isAuthenticated = IsAuthenticated(fileReRoute);
 
-            var isAuthorised = IsAuthenticated(fileReRoute);
+            var isAuthorised = IsAuthorised(fileReRoute);
 
             var isCached = IsCached(fileReRoute);
 
             var requestIdKey = BuildRequestId(fileReRoute, globalConfiguration);
 
-            var loadBalancerKey = BuildLoadBalancerKey(fileReRoute);
+            var reRouteKey = BuildReRouteKey(fileReRoute);
 
-            var upstreamTemplatePattern = BuildUpstreamTemplate(fileReRoute);
+            var upstreamTemplatePattern = BuildUpstreamTemplatePattern(fileReRoute);
 
-            var isQos = fileReRoute.QoSOptions.ExceptionsAllowedBeforeBreaking > 0 && fileReRoute.QoSOptions.TimeoutValue >0;
+            var isQos = IsQoS(fileReRoute);
 
             var serviceProviderConfiguration = BuildServiceProviderConfiguration(fileReRoute, globalConfiguration);
 
@@ -108,6 +114,8 @@ namespace Ocelot.Configuration.Creator
 
             var claimsToQueries = BuildAddThingsToRequest(fileReRoute.AddQueriesToRequest);
 
+            var qosOptions = BuildQoSOptions(fileReRoute);
+
             var reRoute = new ReRouteBuilder()
                 .WithDownstreamPathTemplate(fileReRoute.DownstreamPathTemplate)
                 .WithUpstreamPathTemplate(fileReRoute.UpstreamPathTemplate)
@@ -127,16 +135,31 @@ namespace Ocelot.Configuration.Creator
                 .WithLoadBalancer(fileReRoute.LoadBalancer)
                 .WithDownstreamHost(fileReRoute.DownstreamHost)
                 .WithDownstreamPort(fileReRoute.DownstreamPort)
-                .WithLoadBalancerKey(loadBalancerKey)
+                .WithLoadBalancerKey(reRouteKey)
                 .WithServiceProviderConfiguraion(serviceProviderConfiguration)
                 .WithIsQos(isQos)
-                .WithQosOptions(new QoSOptions(fileReRoute.QoSOptions.ExceptionsAllowedBeforeBreaking, fileReRoute.QoSOptions.DurationOfBreak, fileReRoute.QoSOptions.TimeoutValue))
+                .WithQosOptions(qosOptions)
                 .Build();   
 
             await SetupLoadBalancer(reRoute);
+            SetupQosProvider(reRoute);
             return reRoute;
         }
 
+        private QoSOptions BuildQoSOptions(FileReRoute fileReRoute)
+        {
+            return new QoSOptionsBuilder()
+                .WithExceptionsAllowedBeforeBreaking(fileReRoute.QoSOptions.ExceptionsAllowedBeforeBreaking)
+                .WithDurationOfBreak(fileReRoute.QoSOptions.DurationOfBreak)
+                .WithTimeoutValue(fileReRoute.QoSOptions.TimeoutValue)
+                .Build();
+        }
+
+        private bool IsQoS(FileReRoute fileReRoute)
+        {
+            return fileReRoute.QoSOptions?.ExceptionsAllowedBeforeBreaking > 0 && fileReRoute.QoSOptions?.TimeoutValue > 0;
+        }
+
         private bool IsAuthenticated(FileReRoute fileReRoute)
         {
             return !string.IsNullOrEmpty(fileReRoute.AuthenticationOptions?.Provider);
@@ -163,7 +186,7 @@ namespace Ocelot.Configuration.Creator
                 return requestIdKey;
         }
 
-        private string BuildLoadBalancerKey(FileReRoute fileReRoute)
+        private string BuildReRouteKey(FileReRoute fileReRoute)
         {
             //note - not sure if this is the correct key, but this is probably the only unique key i can think of given my poor brain
             var loadBalancerKey = $"{fileReRoute.UpstreamPathTemplate}{fileReRoute.UpstreamHttpMethod}";
@@ -185,7 +208,13 @@ namespace Ocelot.Configuration.Creator
         private async Task SetupLoadBalancer(ReRoute reRoute)
         {
             var loadBalancer = await _loadBalanceFactory.Get(reRoute);
-            _loadBalancerHouse.Add(reRoute.LoadBalancerKey, loadBalancer);
+            _loadBalancerHouse.Add(reRoute.ReRouteKey, loadBalancer);
+        }
+
+        private void SetupQosProvider(ReRoute reRoute)
+        {
+            var loadBalancer = _qoSProviderFactory.Get(reRoute);
+            _qosProviderHouse.Add(reRoute.ReRouteKey, loadBalancer);
         }
 
         private ServiceProviderConfiguraion BuildServiceProviderConfiguration(FileReRoute fileReRoute, FileGlobalConfiguration globalConfiguration)
@@ -206,7 +235,7 @@ namespace Ocelot.Configuration.Creator
                     .Build();
         }
 
-        private string BuildUpstreamTemplate(FileReRoute reRoute)
+        private string BuildUpstreamTemplatePattern(FileReRoute reRoute)
         {
             var upstreamTemplate = reRoute.UpstreamPathTemplate;
 
@@ -230,6 +259,11 @@ namespace Ocelot.Configuration.Creator
                 upstreamTemplate = upstreamTemplate.Replace(placeholder, RegExMatchEverything);
             }
 
+            if (upstreamTemplate == "/")
+            {
+                return RegExForwardSlashOnly;
+            }
+
             var route = reRoute.ReRouteIsCaseSensitive 
                 ? $"{upstreamTemplate}{RegExMatchEndString}" 
                 : $"{RegExIgnoreCase}{upstreamTemplate}{RegExMatchEndString}";

src/Ocelot/Configuration/QoSOptions.cs

@@ -1,8 +1,5 @@
-using Polly.Timeout;
+using System;
-using System;
+using Polly.Timeout;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
 
 namespace Ocelot.Configuration
 {

src/Ocelot/Configuration/ReRoute.cs

@@ -25,12 +25,12 @@ namespace Ocelot.Configuration
             string loadBalancer, 
             string downstreamHost, 
             int downstreamPort, 
-            string loadBalancerKey, 
+            string reRouteKey, 
             ServiceProviderConfiguraion serviceProviderConfiguraion,
             bool isQos,
             QoSOptions qos)
         {
-            LoadBalancerKey = loadBalancerKey;
+            ReRouteKey = reRouteKey;
             ServiceProviderConfiguraion = serviceProviderConfiguraion;
             LoadBalancer = loadBalancer;
             DownstreamHost = downstreamHost;
@@ -57,7 +57,7 @@ namespace Ocelot.Configuration
             QosOptions = qos;
         }
 
-        public string LoadBalancerKey {get;private set;}
+        public string ReRouteKey {get;private set;}
         public PathTemplate DownstreamPathTemplate { get; private set; }
         public PathTemplate UpstreamPathTemplate { get; private set; }
         public string UpstreamTemplatePattern { get; private set; }

src/Ocelot/DependencyInjection/ServiceCollectionExtensions.cs

@@ -28,6 +28,7 @@ using Ocelot.Logging;
 using Ocelot.QueryStrings;
 using Ocelot.Request.Builder;
 using Ocelot.Requester;
+using Ocelot.Requester.QoS;
 using Ocelot.Responder;
 using Ocelot.ServiceDiscovery;
 
@@ -61,6 +62,8 @@ namespace Ocelot.DependencyInjection
         {
             services.AddMvcCore().AddJsonFormatters();
             services.AddLogging();
+            services.AddSingleton<IQosProviderHouse, QosProviderHouse>();
+            services.AddSingleton<IQoSProviderFactory, QoSProviderFactory>();
             services.AddSingleton<IServiceDiscoveryProviderFactory, ServiceDiscoveryProviderFactory>();
             services.AddSingleton<ILoadBalancerFactory, LoadBalancerFactory>();
             services.AddSingleton<ILoadBalancerHouse, LoadBalancerHouse>();

src/Ocelot/DownstreamRouteFinder/Finder/DownstreamRouteFinder.cs

@@ -30,6 +30,13 @@ namespace Ocelot.DownstreamRouteFinder.Finder
 
             foreach (var reRoute in applicableReRoutes)
             {
+                if (upstreamUrlPath == reRoute.UpstreamTemplatePattern)
+                {
+                    var templateVariableNameAndValues = _urlPathPlaceholderNameAndValueFinder.Find(upstreamUrlPath, reRoute.UpstreamPathTemplate.Value);
+
+                    return new OkResponse<DownstreamRoute>(new DownstreamRoute(templateVariableNameAndValues.Data, reRoute));
+                }
+
                 var urlMatch = _urlMatcher.Match(upstreamUrlPath, reRoute.UpstreamTemplatePattern);
 
                 if (urlMatch.Data.Match)

src/Ocelot/Errors/OcelotErrorCode.cs

@@ -26,6 +26,7 @@
         ServicesAreEmptyError,
         UnableToFindServiceDiscoveryProviderError,
         UnableToFindLoadBalancerError,
-        RequestTimedOutError
+        RequestTimedOutError,
+        UnableToFindQoSProviderError
     }
 }

src/Ocelot/LoadBalancer/Middleware/LoadBalancingMiddleware.cs

@@ -6,7 +6,6 @@ using Ocelot.LoadBalancer.LoadBalancers;
 using Ocelot.Logging;
 using Ocelot.Middleware;
 using Ocelot.QueryStrings.Middleware;
-using Ocelot.ServiceDiscovery;
 
 namespace Ocelot.LoadBalancer.Middleware
 {
@@ -31,7 +30,7 @@ namespace Ocelot.LoadBalancer.Middleware
         {
             _logger.LogDebug("started calling load balancing middleware");
 
-            var loadBalancer = _loadBalancerHouse.Get(DownstreamRoute.ReRoute.LoadBalancerKey);
+            var loadBalancer = _loadBalancerHouse.Get(DownstreamRoute.ReRoute.ReRouteKey);
             if(loadBalancer.IsError)
             {
                 SetPipelineError(loadBalancer.Errors);

src/Ocelot/Request/Builder/HttpRequestCreator.cs

@@ -3,6 +3,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 using Ocelot.Responses;
 using Ocelot.Configuration;
+using Ocelot.Requester.QoS;
 
 namespace Ocelot.Request.Builder
 {
@@ -18,7 +19,7 @@ namespace Ocelot.Request.Builder
             string contentType, 
             RequestId.RequestId requestId,
             bool isQos,
-            QoSOptions qos)
+            IQoSProvider qosProvider)
         {
             var request = await new RequestBuilder()
                 .WithHttpMethod(httpMethod)
@@ -30,7 +31,7 @@ namespace Ocelot.Request.Builder
                 .WithRequestId(requestId)
                 .WithCookies(cookies)
                 .WithIsQos(isQos)
-                .WithQos(qos)
+                .WithQos(qosProvider)
                 .Build();
 
             return new OkResponse<Request>(request);

src/Ocelot/Request/Builder/IRequestCreator.cs

@@ -1,8 +1,8 @@
 using System.IO;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
+using Ocelot.Requester.QoS;
 using Ocelot.Responses;
-using Ocelot.Configuration;
 
 namespace Ocelot.Request.Builder
 {
@@ -17,6 +17,6 @@ namespace Ocelot.Request.Builder
             string contentType,
             RequestId.RequestId requestId,
             bool isQos,
-            QoSOptions qos);
+            IQoSProvider qosProvider);
     }
 }

src/Ocelot/Request/Builder/RequestBuilder.cs

@@ -8,7 +8,7 @@ using System.Net.Http.Headers;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Primitives;
-using Ocelot.Configuration;
+using Ocelot.Requester.QoS;
 
 namespace Ocelot.Request.Builder
 {
@@ -24,7 +24,7 @@ namespace Ocelot.Request.Builder
         private IRequestCookieCollection _cookies;
         private readonly string[] _unsupportedHeaders = {"host"};
         private bool _isQos;
-        private QoSOptions _qos;
+        private IQoSProvider _qoSProvider;
 
         public RequestBuilder WithHttpMethod(string httpMethod)
         {
@@ -80,9 +80,9 @@ namespace Ocelot.Request.Builder
             return this;
         }
 
-        public RequestBuilder WithQos(QoSOptions qos)
+        public RequestBuilder WithQos(IQoSProvider qoSProvider)
         {
-            _qos = qos;
+            _qoSProvider = qoSProvider;
             return this;
         }
 
@@ -105,7 +105,7 @@ namespace Ocelot.Request.Builder
 
             var cookieContainer = CreateCookieContainer(uri);
 
-            return new Request(httpRequestMessage, cookieContainer,_isQos,_qos);
+            return new Request(httpRequestMessage, cookieContainer,_isQos, _qoSProvider);
         }
 
         private Uri CreateUri()

src/Ocelot/Request/Middleware/HttpRequestBuilderMiddleware.cs

@@ -1,10 +1,10 @@
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
-using Microsoft.Extensions.Logging;
 using Ocelot.Infrastructure.RequestData;
 using Ocelot.Logging;
 using Ocelot.Middleware;
 using Ocelot.Request.Builder;
+using Ocelot.Requester.QoS;
 
 namespace Ocelot.Request.Middleware
 {
@@ -13,15 +13,18 @@ namespace Ocelot.Request.Middleware
         private readonly RequestDelegate _next;
         private readonly IRequestCreator _requestCreator;
         private readonly IOcelotLogger _logger;
+        private readonly IQosProviderHouse _qosProviderHouse;
 
         public HttpRequestBuilderMiddleware(RequestDelegate next,
             IOcelotLoggerFactory loggerFactory,
             IRequestScopedDataRepository requestScopedDataRepository, 
-            IRequestCreator requestCreator)
+            IRequestCreator requestCreator, 
+            IQosProviderHouse qosProviderHouse)
             :base(requestScopedDataRepository)
         {
             _next = next;
             _requestCreator = requestCreator;
+            _qosProviderHouse = qosProviderHouse;
             _logger = loggerFactory.CreateLogger<HttpRequestBuilderMiddleware>();
         }
 
@@ -29,17 +32,35 @@ namespace Ocelot.Request.Middleware
         {
             _logger.LogDebug("started calling request builder middleware");
 
+            var qosProvider = _qosProviderHouse.Get(DownstreamRoute.ReRoute.ReRouteKey);
+
+            if (qosProvider.IsError)
+            {
+                _logger.LogDebug("IQosProviderHouse returned an error, setting pipeline error");
+
+                SetPipelineError(qosProvider.Errors);
+
+                return;
+            }
+
             var buildResult = await _requestCreator
-                .Build(context.Request.Method, DownstreamUrl, context.Request.Body,
+                .Build(context.Request.Method,
-                    context.Request.Headers, context.Request.Cookies, context.Request.QueryString,
+                    DownstreamUrl,
-                    context.Request.ContentType, new RequestId.RequestId(DownstreamRoute?.ReRoute?.RequestIdKey, context.TraceIdentifier),
+                    context.Request.Body,
-                    DownstreamRoute.ReRoute.IsQos,DownstreamRoute.ReRoute.QosOptions);
+                    context.Request.Headers,
+                    context.Request.Cookies,
+                    context.Request.QueryString,
+                    context.Request.ContentType,
+                    new RequestId.RequestId(DownstreamRoute?.ReRoute?.RequestIdKey, context.TraceIdentifier),
+                    DownstreamRoute.ReRoute.IsQos,
+                    qosProvider.Data);
 
             if (buildResult.IsError)
             {
                 _logger.LogDebug("IRequestCreator returned an error, setting pipeline error");
 
                 SetPipelineError(buildResult.Errors);
+
                 return;
             }
             _logger.LogDebug("setting upstream request");

src/Ocelot/Request/Request.cs

@@ -2,22 +2,27 @@
 using Ocelot.Values;
 using System.Net;
 using System.Net.Http;
+using Ocelot.Requester.QoS;
 
 namespace Ocelot.Request
 {
     public class Request
     {
-        public Request(HttpRequestMessage httpRequestMessage, CookieContainer cookieContainer,bool isQos, QoSOptions qos)
+        public Request(
+            HttpRequestMessage httpRequestMessage, 
+            CookieContainer cookieContainer,
+            bool isQos,
+            IQoSProvider qosProvider)
         {
             HttpRequestMessage = httpRequestMessage;
             CookieContainer = cookieContainer;
             IsQos = isQos;
-            Qos = qos;
+            QosProvider = qosProvider;
         }
 
         public HttpRequestMessage HttpRequestMessage { get; private set; }
         public CookieContainer CookieContainer { get; private set; }
         public bool IsQos { get; private set; }
-        public QoSOptions Qos { get; private set; }
+        public IQoSProvider QosProvider { get; private set; }
     }
 }

src/Ocelot/Requester/CircuitBreakingDelegatingHandler.cs

@@ -1,77 +0,0 @@
-using Ocelot.Logging;
-using Polly;
-using Polly.CircuitBreaker;
-using Polly.Timeout;
-using System;
-using System.Net;
-using System.Net.Http;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace Ocelot.Requester
-{
-    public class CircuitBreakingDelegatingHandler : DelegatingHandler
-    {
-        private readonly IOcelotLogger _logger;
-        private readonly int _exceptionsAllowedBeforeBreaking;
-        private readonly TimeSpan _durationOfBreak;
-        private readonly Policy _circuitBreakerPolicy;
-        private readonly TimeoutPolicy _timeoutPolicy;
-
-        public CircuitBreakingDelegatingHandler(
-            int exceptionsAllowedBeforeBreaking, 
-            TimeSpan durationOfBreak,
-            TimeSpan timeoutValue,
-            TimeoutStrategy timeoutStrategy, 
-            IOcelotLogger logger, 
-            HttpMessageHandler innerHandler)
-            : base(innerHandler)
-        {
-            this._exceptionsAllowedBeforeBreaking = exceptionsAllowedBeforeBreaking;
-
-            this._durationOfBreak = durationOfBreak;
-
-            _circuitBreakerPolicy = Policy
-                .Handle<HttpRequestException>()
-                .Or<TimeoutRejectedException>()
-                .Or<TimeoutException>()
-                .CircuitBreakerAsync(
-                    exceptionsAllowedBeforeBreaking: exceptionsAllowedBeforeBreaking,
-                    durationOfBreak: durationOfBreak,
-                    onBreak: (ex, breakDelay) =>
-                    {
-                        _logger.LogError(".Breaker logging: Breaking the circuit for " + breakDelay.TotalMilliseconds + "ms!", ex);
-                    },
-                    onReset: () => _logger.LogDebug(".Breaker logging: Call ok! Closed the circuit again."),
-                    onHalfOpen: () => _logger.LogDebug(".Breaker logging: Half-open; next call is a trial.")
-                    );
-
-            _timeoutPolicy = Policy.TimeoutAsync(timeoutValue, timeoutStrategy);
-
-            _logger = logger;
-        }
-
-        protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
-        {
-            try
-            {
-                return await Policy.WrapAsync(_circuitBreakerPolicy, _timeoutPolicy).ExecuteAsync(() => base.SendAsync(request,cancellationToken));
-            }
-            catch (BrokenCircuitException ex)
-            {
-                _logger.LogError($"Reached to allowed number of exceptions. Circuit is open. AllowedExceptionCount: {_exceptionsAllowedBeforeBreaking}, DurationOfBreak: {_durationOfBreak}",ex);
-                throw;
-            }
-            catch (HttpRequestException ex)
-            {
-                _logger.LogError($"Error in CircuitBreakingDelegatingHandler.SendAync", ex);
-                throw;
-            }
-        }
-
-        private static bool IsTransientFailure(HttpResponseMessage result)
-        {
-            return result.StatusCode >= HttpStatusCode.InternalServerError;
-        }
-    }
-}

src/Ocelot/Requester/HttpClientBuilder.cs

@@ -1,35 +1,39 @@
-using Ocelot.Configuration;
+using System;
-using Ocelot.Logging;
-using Ocelot.Values;
-using Polly.Timeout;
-using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net.Http;
-using System.Threading.Tasks;
+using Ocelot.Logging;
+using Ocelot.Requester.QoS;
 
 namespace Ocelot.Requester
 {
     internal class HttpClientBuilder
     {
-        private readonly Dictionary<int, Func<DelegatingHandler>> handlers = new Dictionary<int, Func<DelegatingHandler>>();
+        private readonly Dictionary<int, Func<DelegatingHandler>> _handlers = new Dictionary<int, Func<DelegatingHandler>>();
 
-        public HttpClientBuilder WithCircuitBreaker(QoSOptions qos, IOcelotLogger logger, HttpMessageHandler innerHandler)
+        public HttpClientBuilder WithQoS(IQoSProvider qoSProvider, IOcelotLogger logger, HttpMessageHandler innerHandler)
         {
-            handlers.Add(5000, () => new CircuitBreakingDelegatingHandler(qos.ExceptionsAllowedBeforeBreaking, qos.DurationOfBreak, qos.TimeoutValue, qos.TimeoutStrategy, logger, innerHandler));
+            _handlers.Add(5000, () => new PollyCircuitBreakingDelegatingHandler(qoSProvider, logger, innerHandler));
             return this;
         }
 
         internal HttpClient Build(HttpMessageHandler innerHandler)
         {
-            return handlers.Any() ? new HttpClient(CreateHttpMessageHandler()) : new HttpClient(innerHandler);
+            return _handlers.Any() ? 
+                new HttpClient(CreateHttpMessageHandler()) : 
+                new HttpClient(innerHandler);
         }
 
         private HttpMessageHandler CreateHttpMessageHandler()
         {
             HttpMessageHandler httpMessageHandler = new HttpClientHandler();
 
-            handlers.OrderByDescending(handler => handler.Key).Select(handler => handler.Value).Reverse().ToList().ForEach(handler =>
+            _handlers
+                .OrderByDescending(handler => handler.Key)
+                .Select(handler => handler.Value)
+                .Reverse()
+                .ToList()
+                .ForEach(handler =>
             {
                 var delegatingHandler = handler();
                 delegatingHandler.InnerHandler = httpMessageHandler;

src/Ocelot/Requester/HttpClientHttpRequester.cs

@@ -1,10 +1,10 @@
 using System;
-using System.Collections.Generic;
 using System.Net.Http;
 using System.Threading.Tasks;
-using Ocelot.Errors;
-using Ocelot.Responses;
 using Ocelot.Logging;
+using Ocelot.Responses;
+using Polly.CircuitBreaker;
+using Polly.Timeout;
 
 namespace Ocelot.Requester
 {
@@ -19,13 +19,13 @@ namespace Ocelot.Requester
 
         public async Task<Response<HttpResponseMessage>> GetResponse(Request.Request request)
         {
-            HttpClientBuilder builder = new HttpClientBuilder();    
+            var builder = new HttpClientBuilder();    
 
             using (var handler = new HttpClientHandler { CookieContainer = request.CookieContainer })
             {
                 if (request.IsQos)
                 {
-                    builder.WithCircuitBreaker(request.Qos, _logger, handler);
+                    builder.WithQoS(request.QosProvider, _logger, handler);
                 }           
 
                 using (var httpClient = builder.Build(handler))
@@ -35,7 +35,12 @@ namespace Ocelot.Requester
                         var response = await httpClient.SendAsync(request.HttpRequestMessage);
                         return new OkResponse<HttpResponseMessage>(response);
                     }
-                    catch (Polly.Timeout.TimeoutRejectedException exception)
+                    catch (TimeoutRejectedException exception)
+                    {
+                        return
+                            new ErrorResponse<HttpResponseMessage>(new RequestTimedOutError(exception));
+                    }
+                    catch (BrokenCircuitException exception)
                     {
                         return
                             new ErrorResponse<HttpResponseMessage>(new RequestTimedOutError(exception));

src/Ocelot/Requester/PollyCircuitBreakingDelegatingHandler.cs

@@ -0,0 +1,47 @@
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using Ocelot.Logging;
+using Ocelot.Requester.QoS;
+using Polly;
+using Polly.CircuitBreaker;
+using Polly.Timeout;
+
+namespace Ocelot.Requester
+{
+    public class PollyCircuitBreakingDelegatingHandler : DelegatingHandler
+    {
+        private readonly IQoSProvider _qoSProvider;
+        private readonly IOcelotLogger _logger;
+
+        public PollyCircuitBreakingDelegatingHandler(
+            IQoSProvider qoSProvider,
+            IOcelotLogger logger, 
+            HttpMessageHandler innerHandler)
+            : base(innerHandler)
+        {
+            _qoSProvider = qoSProvider;
+            _logger = logger;
+        }
+
+        protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                return await Policy
+                    .WrapAsync(_qoSProvider.CircuitBreaker.CircuitBreakerPolicy, _qoSProvider.CircuitBreaker.TimeoutPolicy)
+                    .ExecuteAsync(() => base.SendAsync(request,cancellationToken));
+            }
+            catch (BrokenCircuitException ex)
+            {
+                _logger.LogError($"Reached to allowed number of exceptions. Circuit is open",ex);
+                throw;
+            }
+            catch (HttpRequestException ex)
+            {
+                _logger.LogError($"Error in CircuitBreakingDelegatingHandler.SendAync", ex);
+                throw;
+            }
+        }
+    }
+}

src/Ocelot/Requester/QoS/IQoSProviderFactory.cs

@@ -0,0 +1,145 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using Ocelot.Configuration;
+using Ocelot.LoadBalancer.LoadBalancers;
+using Ocelot.Logging;
+using Ocelot.Responses;
+using Polly;
+using Polly.CircuitBreaker;
+using Polly.Timeout;
+
+namespace Ocelot.Requester.QoS
+{
+    public interface IQoSProviderFactory
+    {
+        IQoSProvider Get(ReRoute reRoute);
+    }
+
+    public class QoSProviderFactory : IQoSProviderFactory
+    {
+        private readonly IOcelotLoggerFactory _loggerFactory;
+
+        public QoSProviderFactory(IOcelotLoggerFactory loggerFactory)
+        {
+            _loggerFactory = loggerFactory;
+        }
+
+        public IQoSProvider Get(ReRoute reRoute)
+        {
+            if (reRoute.IsQos)
+            {
+                return new PollyQoSProvider(reRoute, _loggerFactory);
+            }
+
+            return new NoQoSProvider();
+        }
+    }
+
+    public interface IQoSProvider
+    {
+        CircuitBreaker CircuitBreaker { get; }
+    }
+
+    public class NoQoSProvider : IQoSProvider
+    {
+        public CircuitBreaker CircuitBreaker { get; }
+    }
+
+    public class PollyQoSProvider : IQoSProvider
+    {
+        private readonly CircuitBreakerPolicy _circuitBreakerPolicy;
+        private readonly TimeoutPolicy _timeoutPolicy;
+        private readonly IOcelotLogger _logger;
+        private readonly CircuitBreaker _circuitBreaker;
+
+        public PollyQoSProvider(ReRoute reRoute, IOcelotLoggerFactory loggerFactory)
+        {
+            _logger = loggerFactory.CreateLogger<PollyQoSProvider>();
+
+            _timeoutPolicy = Policy.TimeoutAsync(reRoute.QosOptions.TimeoutValue, reRoute.QosOptions.TimeoutStrategy);
+
+            _circuitBreakerPolicy = Policy
+                .Handle<HttpRequestException>()
+                .Or<TimeoutRejectedException>()
+                .Or<TimeoutException>()
+                .CircuitBreakerAsync(
+                    exceptionsAllowedBeforeBreaking: reRoute.QosOptions.ExceptionsAllowedBeforeBreaking,
+                    durationOfBreak: reRoute.QosOptions.DurationOfBreak,
+                    onBreak: (ex, breakDelay) =>
+                    {
+                        _logger.LogError(
+                            ".Breaker logging: Breaking the circuit for " + breakDelay.TotalMilliseconds + "ms!", ex);
+                    },
+                    onReset: () =>
+                    {
+                        _logger.LogDebug(".Breaker logging: Call ok! Closed the circuit again.");
+                    },
+                    onHalfOpen: () =>
+                    {
+                        _logger.LogDebug(".Breaker logging: Half-open; next call is a trial.");
+                    }
+                );
+
+            _circuitBreaker = new CircuitBreaker(_circuitBreakerPolicy, _timeoutPolicy);
+        }
+
+        public CircuitBreaker CircuitBreaker => _circuitBreaker;
+    }
+
+    public class CircuitBreaker
+    {
+        public CircuitBreaker(CircuitBreakerPolicy circuitBreakerPolicy, TimeoutPolicy timeoutPolicy)
+        {
+            CircuitBreakerPolicy = circuitBreakerPolicy;
+            TimeoutPolicy = timeoutPolicy;
+        }
+
+        public CircuitBreakerPolicy CircuitBreakerPolicy { get; private set; }
+        public TimeoutPolicy TimeoutPolicy { get; private set; }
+    }
+
+
+    public interface IQosProviderHouse
+    {
+        Response<IQoSProvider> Get(string key);
+        Response Add(string key, IQoSProvider loadBalancer);
+    }
+
+    public class QosProviderHouse : IQosProviderHouse
+    {
+        private readonly Dictionary<string, IQoSProvider> _qoSProviders;
+
+        public QosProviderHouse()
+        {
+            _qoSProviders = new Dictionary<string, IQoSProvider>();
+        }
+
+        public Response<IQoSProvider> Get(string key)
+        {
+            IQoSProvider qoSProvider;
+
+            if (_qoSProviders.TryGetValue(key, out qoSProvider))
+            {
+                return new OkResponse<IQoSProvider>(_qoSProviders[key]);
+            }
+
+            return new ErrorResponse<IQoSProvider>(new List<Ocelot.Errors.Error>()
+            {
+                new UnableToFindQoSProviderError($"unabe to find qos provider for {key}")
+            });
+        }
+
+        public Response Add(string key, IQoSProvider loadBalancer)
+        {
+            if (!_qoSProviders.ContainsKey(key))
+            {
+                _qoSProviders.Add(key, loadBalancer);
+            }
+
+            _qoSProviders.Remove(key);
+            _qoSProviders.Add(key, loadBalancer);
+            return new OkResponse();
+        }
+    }
+}

src/Ocelot/Requester/QoS/UnableToFindQoSProviderError.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Ocelot.Errors;
+
+namespace Ocelot.Requester.QoS
+{
+    public class UnableToFindQoSProviderError : Error
+    {
+        public UnableToFindQoSProviderError(string message) 
+            : base(message, OcelotErrorCode.UnableToFindQoSProviderError)
+        {
+        }
+    }
+}

src/Ocelot/Responder/ErrorsToHttpStatusCodeMapper.cs

@@ -24,7 +24,7 @@ namespace Ocelot.Responder
 
             if (errors.Any(e => e.Code == OcelotErrorCode.RequestTimedOutError))
             {
-                return new OkResponse<int>(408);
+                return new OkResponse<int>(503);
             }
 
             return new OkResponse<int>(404);

test/Ocelot.AcceptanceTests/QoSTests.cs

@@ -15,16 +15,16 @@ namespace Ocelot.AcceptanceTests
 {
     public class QoSTests : IDisposable
     {
-        private IWebHost _builder;
+        private IWebHost _brokenService;
         private readonly Steps _steps;
         private int _requestCount;
+        private IWebHost _workingService;
 
         public QoSTests()
         {
             _steps = new Steps();
         }
 
-
         [Fact]
         public void should_open_circuit_breaker_then_close()
         {
@@ -50,33 +50,90 @@ namespace Ocelot.AcceptanceTests
                 }
             };
 
-            this.Given(x => x.GivenThereIsAServiceRunningOn("http://localhost:51879", "Hello from Laura"))
+            this.Given(x => x.GivenThereIsAPossiblyBrokenServiceRunningOn("http://localhost:51879", "Hello from Laura"))
                 .Given(x => _steps.GivenThereIsAConfiguration(configuration))
                 .Given(x => _steps.GivenOcelotIsRunning())
                 .When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
                 .Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
                 .And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
                 .Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
-                .Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.RequestTimeout))
+                .Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
                 .Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
-                .Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.RequestTimeout))
+                .Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
                 .Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
-                .Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.RequestTimeout))
+                .Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
-                .Given(x => x.GivenIWaitMilliSeconds(2000))
+                .Given(x => x.GivenIWaitMilliseconds(3000))
                 .When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
                 .Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
                 .And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
                 .BDDfy();
         }
 
-        private void GivenIWaitMilliSeconds(int ms)
+        [Fact]
+        public void open_circuit_should_not_effect_different_reRoute()
+        {
+            var configuration = new FileConfiguration
+            {
+                ReRoutes = new List<FileReRoute>
+                {
+                    new FileReRoute
+                    {
+                        DownstreamPathTemplate = "/",
+                        DownstreamScheme = "http",
+                        DownstreamHost = "localhost",
+                        DownstreamPort = 51879,
+                        UpstreamPathTemplate = "/",
+                        UpstreamHttpMethod = "Get",
+                        QoSOptions = new FileQoSOptions
+                        {
+                            ExceptionsAllowedBeforeBreaking = 1,
+                            TimeoutValue = 500,
+                            DurationOfBreak = 1000
+                        }
+                    },
+                    new FileReRoute
+                    {
+                        DownstreamPathTemplate = "/",
+                        DownstreamScheme = "http",
+                        DownstreamHost = "localhost",
+                        DownstreamPort = 51880,
+                        UpstreamPathTemplate = "working",
+                        UpstreamHttpMethod = "Get",
+                    }
+                }
+            };
+
+            this.Given(x => x.GivenThereIsAPossiblyBrokenServiceRunningOn("http://localhost:51879", "Hello from Laura"))
+                .And(x => x.GivenThereIsAServiceRunningOn("http://localhost:51880/", 200, "Hello from Tom"))
+                .And(x => _steps.GivenThereIsAConfiguration(configuration))
+                .And(x => _steps.GivenOcelotIsRunning())
+                .And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
+                .And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
+                .And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
+                .And(x => _steps.WhenIGetUrlOnTheApiGateway("/working"))
+                .And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
+                .And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Tom"))
+                .And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
+                .And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
+                .And(x => x.GivenIWaitMilliseconds(3000))
+                .When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
+                .And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
+                .BDDfy();
+        }
+
+        private void GivenIWaitMilliseconds(int ms)
         {
             Thread.Sleep(ms);
         }
 
-        private void GivenThereIsAServiceRunningOn(string url, string responseBody)
+        private void GivenThereIsAPossiblyBrokenServiceRunningOn(string url, string responseBody)
         {
-            _builder = new WebHostBuilder()
+            _brokenService = new WebHostBuilder()
                 .UseUrls(url)
                 .UseKestrel()
                 .UseContentRoot(Directory.GetCurrentDirectory())
@@ -95,7 +152,7 @@ namespace Ocelot.AcceptanceTests
                             return;
                         }
 
-                        //request one times out and polly throws exception
+                        //request one times out and polly throws exception, circuit opens
                         if (_requestCount == 1)
                         {
                             _requestCount++;
@@ -104,17 +161,8 @@ namespace Ocelot.AcceptanceTests
                             return;
                         }
 
-                        //request two times out and polly throws exception circuit opens
-                        if (_requestCount == 2)
-                        {
-                            _requestCount++;
-                            await Task.Delay(1000);
-                            context.Response.StatusCode = 200;
-                            return;
-                        }
-
                         //after break closes we return 200 OK
-                        if (_requestCount == 3)
+                        if (_requestCount == 2)
                         {
                             context.Response.StatusCode = 200;
                             await context.Response.WriteAsync(responseBody);
@@ -124,12 +172,34 @@ namespace Ocelot.AcceptanceTests
                 })
                 .Build();
 
-            _builder.Start();
+            _brokenService.Start();
+        }
+
+        private void GivenThereIsAServiceRunningOn(string url, int statusCode, string responseBody)
+        {
+            _workingService = new WebHostBuilder()
+                .UseUrls(url)
+                .UseKestrel()
+                .UseContentRoot(Directory.GetCurrentDirectory())
+                .UseIISIntegration()
+                .UseUrls(url)
+                .Configure(app =>
+                {
+                    app.Run(async context =>
+                    {
+                        context.Response.StatusCode = statusCode;
+                        await context.Response.WriteAsync(responseBody);
+                    });
+                })
+                .Build();
+
+            _workingService.Start();
         }
 
         public void Dispose()
         {
-            _builder?.Dispose();
+            _workingService?.Dispose();
+            _brokenService?.Dispose();
             _steps.Dispose();
         }
     }

test/Ocelot.UnitTests/Configuration/FileConfigurationCreatorTests.cs

@@ -9,6 +9,7 @@ using Ocelot.Configuration.File;
 using Ocelot.Configuration.Parser;
 using Ocelot.Configuration.Validator;
 using Ocelot.LoadBalancer.LoadBalancers;
+using Ocelot.Requester.QoS;
 using Ocelot.Responses;
 using Shouldly;
 using TestStack.BDDfy;
@@ -28,9 +29,15 @@ namespace Ocelot.UnitTests.Configuration
         private readonly Mock<ILoadBalancerFactory> _loadBalancerFactory;
         private readonly Mock<ILoadBalancerHouse> _loadBalancerHouse;
         private readonly Mock<ILoadBalancer> _loadBalancer;
+        private readonly Mock<IQoSProviderFactory> _qosProviderFactory;
+        private readonly Mock<IQosProviderHouse> _qosProviderHouse;
+        private readonly Mock<IQoSProvider> _qosProvider;
 
         public FileConfigurationCreatorTests()
         {
+            _qosProviderFactory = new Mock<IQoSProviderFactory>();
+            _qosProviderHouse = new Mock<IQosProviderHouse>();
+            _qosProvider = new Mock<IQoSProvider>();
             _logger = new Mock<ILogger<FileOcelotConfigurationCreator>>();
             _configParser = new Mock<IClaimToThingConfigurationParser>();
             _validator = new Mock<IConfigurationValidator>();
@@ -40,7 +47,8 @@ namespace Ocelot.UnitTests.Configuration
             _loadBalancer = new Mock<ILoadBalancer>();
             _ocelotConfigurationCreator = new FileOcelotConfigurationCreator( 
                 _fileConfig.Object, _validator.Object, _configParser.Object, _logger.Object,
-                _loadBalancerFactory.Object, _loadBalancerHouse.Object);
+                _loadBalancerFactory.Object, _loadBalancerHouse.Object, 
+                _qosProviderFactory.Object, _qosProviderHouse.Object);
         }
 
         [Fact]
@@ -64,7 +72,36 @@ namespace Ocelot.UnitTests.Configuration
                                 .When(x => x.WhenICreateTheConfig())
                                 .Then(x => x.TheLoadBalancerFactoryIsCalledCorrectly())
                                 .And(x => x.ThenTheLoadBalancerHouseIsCalledCorrectly())
+                    .BDDfy();
+        }
 
+        [Fact]
+        public void should_create_qos_provider()
+        {
+            this.Given(x => x.GivenTheConfigIs(new FileConfiguration
+            {
+                ReRoutes = new List<FileReRoute>
+                {
+                    new FileReRoute
+                    {
+                        DownstreamHost = "127.0.0.1",
+                        UpstreamPathTemplate = "/api/products/{productId}",
+                        DownstreamPathTemplate = "/products/{productId}",
+                        UpstreamHttpMethod = "Get",
+                        QoSOptions = new FileQoSOptions
+                        {
+                            TimeoutValue = 1,
+                            DurationOfBreak = 1,
+                            ExceptionsAllowedBeforeBreaking = 1
+                        }
+                    }
+                },
+            }))
+                .And(x => x.GivenTheConfigIsValid())
+                .And(x => x.GivenTheQosProviderFactoryReturns())
+                .When(x => x.WhenICreateTheConfig())
+                .Then(x => x.TheQosProviderFactoryIsCalledCorrectly())
+                .And(x => x.ThenTheQosProviderHouseIsCalledCorrectly())
                 .BDDfy();
         }
 
@@ -568,7 +605,7 @@ namespace Ocelot.UnitTests.Configuration
                         .WithDownstreamPathTemplate("/api/products/")
                         .WithUpstreamPathTemplate("/")
                         .WithUpstreamHttpMethod("Get")
-                        .WithUpstreamTemplatePattern("/$")
+                        .WithUpstreamTemplatePattern("^/$")
                         .Build()
                 }))
                 .BDDfy();
@@ -643,5 +680,24 @@ namespace Ocelot.UnitTests.Configuration
             _loadBalancerHouse
                 .Verify(x => x.Add(It.IsAny<string>(), _loadBalancer.Object), Times.Once);
         }
+
+        private void GivenTheQosProviderFactoryReturns()
+        {
+            _qosProviderFactory
+                .Setup(x => x.Get(It.IsAny<ReRoute>()))
+                .Returns(_qosProvider.Object);
+        }
+
+        private void TheQosProviderFactoryIsCalledCorrectly()
+        {
+            _qosProviderFactory
+                .Verify(x => x.Get(It.IsAny<ReRoute>()), Times.Once);
+        }
+
+        private void ThenTheQosProviderHouseIsCalledCorrectly()
+        {
+            _qosProviderHouse
+                .Verify(x => x.Add(It.IsAny<string>(), _qosProvider.Object), Times.Once);
+        }
     }
 }

test/Ocelot.UnitTests/DownstreamRouteFinder/DownstreamRouteFinderTests.cs

@@ -35,6 +35,37 @@ namespace Ocelot.UnitTests.DownstreamRouteFinder
 
         [Fact]
         public void should_return_route()
+        {
+            this.Given(x => x.GivenThereIsAnUpstreamUrlPath("matchInUrlMatcher"))
+                .And(x =>x.GivenTheTemplateVariableAndNameFinderReturns(
+                        new OkResponse<List<UrlPathPlaceholderNameAndValue>>(
+                            new List<UrlPathPlaceholderNameAndValue>())))
+                .And(x => x.GivenTheConfigurationIs(new List<ReRoute>
+                {
+                    new ReRouteBuilder()
+                        .WithDownstreamPathTemplate("someDownstreamPath")
+                        .WithUpstreamPathTemplate("someUpstreamPath")
+                        .WithUpstreamHttpMethod("Get")
+                        .WithUpstreamTemplatePattern("someUpstreamPath")
+                        .Build()
+                }))
+                .And(x => x.GivenTheUrlMatcherReturns(new OkResponse<UrlMatch>(new UrlMatch(true))))
+                .And(x => x.GivenTheUpstreamHttpMethodIs("Get"))
+                .When(x => x.WhenICallTheFinder())
+                .Then(
+                    x => x.ThenTheFollowingIsReturned(new DownstreamRoute(
+                            new List<UrlPathPlaceholderNameAndValue>(),
+                            new ReRouteBuilder()
+                                .WithDownstreamPathTemplate("someDownstreamPath")
+                                .WithUpstreamHttpMethod("Get")
+                                .Build()
+                )))
+                .And(x => x.ThenTheUrlMatcherIsCalledCorrectly())
+                .BDDfy();
+        }
+
+        [Fact]
+        public void should_return_route_if_upstream_path_and_upstream_template_are_the_same()
         {
             this.Given(x => x.GivenThereIsAnUpstreamUrlPath("someUpstreamPath"))
                 .And(
@@ -61,7 +92,7 @@ namespace Ocelot.UnitTests.DownstreamRouteFinder
                             .WithUpstreamHttpMethod("Get")
                             .Build()
                         )))
-                .And(x => x.ThenTheUrlMatcherIsCalledCorrectly())
+                .And(x => x.ThenTheUrlMatcherIsNotCalled())
                 .BDDfy();
         }
 
@@ -105,7 +136,7 @@ namespace Ocelot.UnitTests.DownstreamRouteFinder
         [Fact]
         public void should_not_return_route()
         {
-            this.Given(x => x.GivenThereIsAnUpstreamUrlPath("somePath"))
+            this.Given(x => x.GivenThereIsAnUpstreamUrlPath("dontMatchPath"))
                  .And(x => x.GivenTheConfigurationIs(new List<ReRoute>
                      {
                         new ReRouteBuilder()
@@ -148,6 +179,12 @@ namespace Ocelot.UnitTests.DownstreamRouteFinder
                 .Verify(x => x.Match(_upstreamUrlPath, _reRoutesConfig[0].UpstreamPathTemplate.Value), Times.Once);
         }
 
+        private void ThenTheUrlMatcherIsNotCalled()
+        {
+            _mockMatcher
+                .Verify(x => x.Match(_upstreamUrlPath, _reRoutesConfig[0].UpstreamPathTemplate.Value), Times.Never);
+        }
+
         private void GivenTheUrlMatcherReturns(Response<UrlMatch> match)
         {
             _match = match;

test/Ocelot.UnitTests/DownstreamRouteFinder/UrlMatcher/RegExUrlMatcherTests.cs

@@ -18,6 +18,26 @@ namespace Ocelot.UnitTests.DownstreamRouteFinder.UrlMatcher
             _urlMatcher = new RegExUrlMatcher();
         }
 
+        [Fact]
+        public void should_not_match_forward_slash_only_regex()
+        {
+            this.Given(x => x.GivenIHaveAUpstreamPath("/working/"))
+              .And(x => x.GivenIHaveAnUpstreamUrlTemplatePattern("^/$"))
+              .When(x => x.WhenIMatchThePaths())
+              .And(x => x.ThenTheResultIsFalse())
+              .BDDfy();
+        }
+
+        [Fact]
+        public void should_match_forward_slash_only_regex()
+        {
+            this.Given(x => x.GivenIHaveAUpstreamPath("/"))
+              .And(x => x.GivenIHaveAnUpstreamUrlTemplatePattern("^/$"))
+              .When(x => x.WhenIMatchThePaths())
+              .And(x => x.ThenTheResultIsTrue())
+              .BDDfy();
+        }
+
         [Fact]
         public void should_find_match_when_template_smaller_than_valid_path()
         {

test/Ocelot.UnitTests/Request/HttpRequestBuilderMiddlewareTests.cs

@@ -20,6 +20,7 @@ using Ocelot.Responses;
 using TestStack.BDDfy;
 using Xunit;
 using Ocelot.Configuration;
+using Ocelot.Requester.QoS;
 
 namespace Ocelot.UnitTests.Request
 {
@@ -27,6 +28,7 @@ namespace Ocelot.UnitTests.Request
     {
         private readonly Mock<IRequestCreator> _requestBuilder;
         private readonly Mock<IRequestScopedDataRepository> _scopedRepository;
+        private readonly Mock<IQosProviderHouse> _qosProviderHouse;
         private readonly string _url;
         private readonly TestServer _server;
         private readonly HttpClient _client;
@@ -38,6 +40,7 @@ namespace Ocelot.UnitTests.Request
         public HttpRequestBuilderMiddlewareTests()
         {
             _url = "http://localhost:51879";
+            _qosProviderHouse = new Mock<IQosProviderHouse>();
             _requestBuilder = new Mock<IRequestCreator>();
             _scopedRepository = new Mock<IRequestScopedDataRepository>();
             var builder = new WebHostBuilder()
@@ -45,6 +48,7 @@ namespace Ocelot.UnitTests.Request
               {
                   x.AddSingleton<IOcelotLoggerFactory, AspDotNetLoggerFactory>();
                   x.AddLogging();
+                  x.AddSingleton(_qosProviderHouse.Object);
                   x.AddSingleton(_requestBuilder.Object);
                   x.AddSingleton(_scopedRepository.Object);
               })
@@ -72,15 +76,22 @@ namespace Ocelot.UnitTests.Request
                     .WithUpstreamHttpMethod("Get")
                     .Build());
 
-
             this.Given(x => x.GivenTheDownStreamUrlIs("any old string"))
+                .And(x => x.GivenTheQosProviderHouseReturns(new OkResponse<IQoSProvider>(new NoQoSProvider())))
                 .And(x => x.GivenTheDownStreamRouteIs(downstreamRoute))
-                .And(x => x.GivenTheRequestBuilderReturns(new Ocelot.Request.Request(new HttpRequestMessage(), new CookieContainer(), true, new QoSOptions(3, 8 ,5000, Polly.Timeout.TimeoutStrategy.Pessimistic))))
+                .And(x => x.GivenTheRequestBuilderReturns(new Ocelot.Request.Request(new HttpRequestMessage(), new CookieContainer(), true, new NoQoSProvider())))
                 .When(x => x.WhenICallTheMiddleware())
                 .Then(x => x.ThenTheScopedDataRepositoryIsCalledCorrectly())
                 .BDDfy();
         }
 
+        private void GivenTheQosProviderHouseReturns(Response<IQoSProvider> qosProvider)
+        {
+            _qosProviderHouse
+                .Setup(x => x.Get(It.IsAny<string>()))
+                .Returns(qosProvider);
+        }
+
         private void GivenTheDownStreamRouteIs(DownstreamRoute downstreamRoute)
         {
             _downstreamRoute = new OkResponse<DownstreamRoute>(downstreamRoute);
@@ -94,7 +105,7 @@ namespace Ocelot.UnitTests.Request
             _request = new OkResponse<Ocelot.Request.Request>(request);
             _requestBuilder
                 .Setup(x => x.Build(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<Stream>(), It.IsAny<IHeaderDictionary>(),
-                It.IsAny<IRequestCookieCollection>(), It.IsAny<QueryString>(), It.IsAny<string>(), It.IsAny<Ocelot.RequestId.RequestId>(),It.IsAny<bool>(), It.IsAny<QoSOptions>()))
+                It.IsAny<IRequestCookieCollection>(), It.IsAny<QueryString>(), It.IsAny<string>(), It.IsAny<Ocelot.RequestId.RequestId>(),It.IsAny<bool>(), It.IsAny<IQoSProvider>()))
                 .ReturnsAsync(_request);
         }
 

test/Ocelot.UnitTests/Request/RequestBuilderTests.cs

@@ -11,6 +11,7 @@ using Shouldly;
 using TestStack.BDDfy;
 using Xunit;
 using Ocelot.Configuration;
+using Ocelot.Requester.QoS;
 
 namespace Ocelot.UnitTests.Request
 {
@@ -27,7 +28,7 @@ namespace Ocelot.UnitTests.Request
         private Response<Ocelot.Request.Request> _result;
         private Ocelot.RequestId.RequestId _requestId;
         private bool _isQos;
-        private QoSOptions _qos;
+        private IQoSProvider _qoSProvider;
 
         public RequestBuilderTests()
         {
@@ -40,7 +41,7 @@ namespace Ocelot.UnitTests.Request
         {
             this.Given(x => x.GivenIHaveHttpMethod("GET"))
                 .And(x => x.GivenIHaveDownstreamUrl("http://www.bbc.co.uk"))
-                .And(x=> x.GivenTheQos(true,new QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic)))
+                .And(x=> x.GivenTheQos(true, new NoQoSProvider()))
                 .When(x => x.WhenICreateARequest())
                 .And(x => x.ThenTheCorrectDownstreamUrlIsUsed("http://www.bbc.co.uk/"))
                 .BDDfy();
@@ -51,7 +52,7 @@ namespace Ocelot.UnitTests.Request
         {
             this.Given(x => x.GivenIHaveHttpMethod("POST"))
                 .And(x => x.GivenIHaveDownstreamUrl("http://www.bbc.co.uk"))
-                .And(x => x.GivenTheQos(true,new QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic)))
+                .And(x => x.GivenTheQos(true, new NoQoSProvider()))
 
                 .When(x => x.WhenICreateARequest())
                 .And(x => x.ThenTheCorrectHttpMethodIsUsed(HttpMethod.Post))
@@ -65,7 +66,7 @@ namespace Ocelot.UnitTests.Request
                 .And(x => x.GivenIHaveDownstreamUrl("http://www.bbc.co.uk"))
                 .And(x => x.GivenIHaveTheHttpContent(new StringContent("Hi from Tom")))
                 .And(x => x.GivenTheContentTypeIs("application/json"))
-                              .And(x => x.GivenTheQos(true, new QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic)))
+                              .And(x => x.GivenTheQos(true, new NoQoSProvider()))
 
                               .When(x => x.WhenICreateARequest())
                .And(x => x.ThenTheCorrectContentIsUsed(new StringContent("Hi from Tom")))
@@ -79,7 +80,7 @@ namespace Ocelot.UnitTests.Request
                 .And(x => x.GivenIHaveDownstreamUrl("http://www.bbc.co.uk"))
                 .And(x => x.GivenIHaveTheHttpContent(new StringContent("Hi from Tom")))
                 .And(x => x.GivenTheContentTypeIs("application/json"))
-                .And(x => x.GivenTheQos(true, new QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic)))
+                .And(x => x.GivenTheQos(true, new NoQoSProvider()))
 
                .When(x => x.WhenICreateARequest())
                .And(x => x.ThenTheCorrectContentHeadersAreUsed(new HeaderDictionary
@@ -98,7 +99,7 @@ namespace Ocelot.UnitTests.Request
                 .And(x => x.GivenIHaveDownstreamUrl("http://www.bbc.co.uk"))
                 .And(x => x.GivenIHaveTheHttpContent(new StringContent("Hi from Tom")))
                 .And(x => x.GivenTheContentTypeIs("application/json; charset=utf-8"))
-                                .And(x => x.GivenTheQos(true, new QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic)))
+                                .And(x => x.GivenTheQos(true, new NoQoSProvider()))
 
                .When(x => x.WhenICreateARequest())
                .And(x => x.ThenTheCorrectContentHeadersAreUsed(new HeaderDictionary
@@ -119,7 +120,7 @@ namespace Ocelot.UnitTests.Request
                 {
                     {"ChopSticks", "Bubbles" }
                 }))
-                                .And(x => x.GivenTheQos(true, new QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic)))
+                                .And(x => x.GivenTheQos(true, new NoQoSProvider()))
 
                 .When(x => x.WhenICreateARequest())
                 .And(x => x.ThenTheCorrectHeadersAreUsed(new HeaderDictionary
@@ -138,7 +139,7 @@ namespace Ocelot.UnitTests.Request
                 .And(x => x.GivenIHaveDownstreamUrl("http://www.bbc.co.uk"))
                 .And(x => x.GivenTheHttpHeadersAre(new HeaderDictionary()))
                 .And(x => x.GivenTheRequestIdIs(new Ocelot.RequestId.RequestId("RequestId", requestId)))
-                              .And(x => x.GivenTheQos(true, new QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic)))
+                              .And(x => x.GivenTheQos(true, new NoQoSProvider()))
   .When(x => x.WhenICreateARequest())
                 .And(x => x.ThenTheCorrectHeadersAreUsed(new HeaderDictionary
                 {
@@ -157,7 +158,7 @@ namespace Ocelot.UnitTests.Request
                     {"RequestId", "534534gv54gv45g" }
                 }))
                 .And(x => x.GivenTheRequestIdIs(new Ocelot.RequestId.RequestId("RequestId", Guid.NewGuid().ToString())))
-                               .And(x => x.GivenTheQos(true, new QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic)))
+                               .And(x => x.GivenTheQos(true, new NoQoSProvider()))
  .When(x => x.WhenICreateARequest())
                 .And(x => x.ThenTheCorrectHeadersAreUsed(new HeaderDictionary
                 {
@@ -177,7 +178,7 @@ namespace Ocelot.UnitTests.Request
                 .And(x => x.GivenIHaveDownstreamUrl("http://www.bbc.co.uk"))
                 .And(x => x.GivenTheHttpHeadersAre(new HeaderDictionary()))
                 .And(x => x.GivenTheRequestIdIs(new Ocelot.RequestId.RequestId(requestIdKey, requestIdValue)))
-                              .And(x => x.GivenTheQos(true, new QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic)))
+                              .And(x => x.GivenTheQos(true, new NoQoSProvider()))
   .When(x => x.WhenICreateARequest())
                 .And(x => x.ThenTheRequestIdIsNotInTheHeaders())
                 .BDDfy();
@@ -188,10 +189,10 @@ namespace Ocelot.UnitTests.Request
             _requestId = requestId;
         }
 
-        private void GivenTheQos(bool isQos, QoSOptions qos)
+        private void GivenTheQos(bool isQos, IQoSProvider qoSProvider)
         {
             _isQos = isQos;
-            _qos = qos;
+            _qoSProvider = qoSProvider;
         }
 
         [Fact]
@@ -304,7 +305,7 @@ namespace Ocelot.UnitTests.Request
         private void WhenICreateARequest()
         {
             _result = _requestCreator.Build(_httpMethod, _downstreamUrl, _content?.ReadAsStreamAsync().Result, _headers,
-                _cookies, _query, _contentType, _requestId,_isQos,_qos).Result;
+                _cookies, _query, _contentType, _requestId,_isQos,_qoSProvider).Result;
         }
 
 

test/Ocelot.UnitTests/Requester/HttpRequesterMiddlewareTests.cs

@@ -13,6 +13,7 @@ using Ocelot.Logging;
 using Ocelot.QueryStrings.Middleware;
 using Ocelot.Requester;
 using Ocelot.Requester.Middleware;
+using Ocelot.Requester.QoS;
 using Ocelot.Responder;
 using Ocelot.Responses;
 using TestStack.BDDfy;
@@ -61,7 +62,7 @@ namespace Ocelot.UnitTests.Requester
         [Fact]
         public void should_call_scoped_data_repository_correctly()
         {
-            this.Given(x => x.GivenTheRequestIs(new Ocelot.Request.Request(new HttpRequestMessage(),new CookieContainer(),true, new Ocelot.Configuration.QoSOptions(3, 8, 5000, Polly.Timeout.TimeoutStrategy.Pessimistic))))
+            this.Given(x => x.GivenTheRequestIs(new Ocelot.Request.Request(new HttpRequestMessage(),new CookieContainer(),true, new NoQoSProvider())))
                 .And(x => x.GivenTheRequesterReturns(new HttpResponseMessage()))
                 .And(x => x.GivenTheScopedRepoReturns())
                 .When(x => x.WhenICallTheMiddleware())

test/Ocelot.UnitTests/Requester/QoSProviderFactoryTests.cs

@@ -0,0 +1,80 @@
+using Moq;
+using Ocelot.Configuration;
+using Ocelot.Configuration.Builder;
+using Ocelot.Logging;
+using Ocelot.Requester.QoS;
+using Shouldly;
+using TestStack.BDDfy;
+using Xunit;
+
+namespace Ocelot.UnitTests.Requester
+{
+    public class QoSProviderFactoryTests
+    {
+        private readonly IQoSProviderFactory _factory;
+        private ReRoute _reRoute;
+        private IQoSProvider _result;
+        private Mock<IOcelotLoggerFactory> _loggerFactory;
+        private Mock<IOcelotLogger> _logger;
+
+        public QoSProviderFactoryTests()
+        {
+            _logger = new Mock<IOcelotLogger>();
+            _loggerFactory = new Mock<IOcelotLoggerFactory>();
+            _loggerFactory
+                .Setup(x => x.CreateLogger<PollyQoSProvider>())
+                .Returns(_logger.Object);
+            _factory = new QoSProviderFactory(_loggerFactory.Object);
+        }
+
+        [Fact]
+        public void should_return_no_qos_provider()
+        {
+            var reRoute = new ReRouteBuilder()
+                .WithUpstreamHttpMethod("get")
+                .WithIsQos(false)
+                .Build();
+
+            this.Given(x => x.GivenAReRoute(reRoute))
+                .When(x => x.WhenIGetTheQoSProvider())
+                .Then(x => x.ThenTheQoSProviderIsReturned<NoQoSProvider>())
+                .BDDfy();
+        }
+
+        [Fact]
+        public void should_return_polly_qos_provider()
+        {
+            var qosOptions = new QoSOptionsBuilder()
+                .WithTimeoutValue(100)
+                .WithDurationOfBreak(100)
+                .WithExceptionsAllowedBeforeBreaking(100)
+                .Build();
+
+            var reRoute = new ReRouteBuilder()
+               .WithUpstreamHttpMethod("get")
+               .WithIsQos(true)
+               .WithQosOptions(qosOptions)
+               .Build();
+
+            this.Given(x => x.GivenAReRoute(reRoute))
+                .When(x => x.WhenIGetTheQoSProvider())
+                .Then(x => x.ThenTheQoSProviderIsReturned<PollyQoSProvider>())
+                .BDDfy();
+        }
+
+        private void GivenAReRoute(ReRoute reRoute)
+        {
+            _reRoute = reRoute;
+        }
+
+        private void WhenIGetTheQoSProvider()
+        {
+            _result = _factory.Get(_reRoute);
+        }
+
+        private void ThenTheQoSProviderIsReturned<T>()
+        {
+            _result.ShouldBeOfType<T>();
+        }
+    }
+}

test/Ocelot.UnitTests/Requester/QosProviderHouseTests.cs

@@ -0,0 +1,117 @@
+using Ocelot.Requester.QoS;
+using Ocelot.Responses;
+using Shouldly;
+using TestStack.BDDfy;
+using Xunit;
+
+namespace Ocelot.UnitTests.Requester
+{
+    public class QosProviderHouseTests
+    {
+        private IQoSProvider _qoSProvider;
+        private readonly QosProviderHouse _qosProviderHouse;
+        private Response _addResult;
+        private Response<IQoSProvider> _getResult;
+        private string _key;
+
+        public QosProviderHouseTests()
+        {
+            _qosProviderHouse = new QosProviderHouse();
+        }
+
+        [Fact]
+        public void should_store_qos_provider()
+        {
+            var key = "test";
+
+            this.Given(x => x.GivenThereIsAQoSProvider(key, new FakeQoSProvider()))
+                .When(x => x.WhenIAddTheQoSProvider())
+                .Then(x => x.ThenItIsAdded())
+                .BDDfy();
+        }
+
+        [Fact]
+        public void should_get_qos_provider()
+        {
+            var key = "test";
+
+            this.Given(x => x.GivenThereIsAQoSProvider(key, new FakeQoSProvider()))
+                .When(x => x.WhenWeGetTheQoSProvider(key))
+                .Then(x => x.ThenItIsReturned())
+                .BDDfy();
+        }
+
+        [Fact]
+        public void should_store_qos_providers_by_key()
+        {
+            var key = "test";
+            var keyTwo = "testTwo";
+
+            this.Given(x => x.GivenThereIsAQoSProvider(key, new FakeQoSProvider()))
+                .And(x => x.GivenThereIsAQoSProvider(keyTwo, new FakePollyQoSProvider()))
+                .When(x => x.WhenWeGetTheQoSProvider(key))
+                .Then(x => x.ThenTheQoSProviderIs<FakeQoSProvider>())
+                .When(x => x.WhenWeGetTheQoSProvider(keyTwo))
+                .Then(x => x.ThenTheQoSProviderIs<FakePollyQoSProvider>())
+                .BDDfy();
+        }
+
+        [Fact]
+        public void should_return_error_if_no_qos_provider_with_key()
+        {
+            this.When(x => x.WhenWeGetTheQoSProvider("test"))
+            .Then(x => x.ThenAnErrorIsReturned())
+            .BDDfy();
+        }
+
+        private void ThenAnErrorIsReturned()
+        {
+            _getResult.IsError.ShouldBeTrue();
+            _getResult.Errors[0].ShouldBeOfType<UnableToFindQoSProviderError>();
+        }
+
+        private void ThenTheQoSProviderIs<T>()
+        {
+            _getResult.Data.ShouldBeOfType<T>();
+        }
+
+        private void ThenItIsAdded()
+        {
+            _addResult.IsError.ShouldBe(false);
+            _addResult.ShouldBeOfType<OkResponse>();
+        }
+
+        private void WhenIAddTheQoSProvider()
+        {
+            _addResult = _qosProviderHouse.Add(_key, _qoSProvider);
+        }
+
+
+        private void GivenThereIsAQoSProvider(string key, IQoSProvider qoSProvider)
+        {
+            _key = key;
+            _qoSProvider = qoSProvider;
+            WhenIAddTheQoSProvider();
+        }
+
+        private void WhenWeGetTheQoSProvider(string key)
+        {
+            _getResult = _qosProviderHouse.Get(key);
+        }
+
+        private void ThenItIsReturned()
+        {
+            _getResult.Data.ShouldBe(_qoSProvider);
+        }
+
+        class FakeQoSProvider : IQoSProvider
+        {
+            public CircuitBreaker CircuitBreaker { get; }
+        }
+
+        class FakePollyQoSProvider : IQoSProvider
+        {
+            public CircuitBreaker CircuitBreaker { get; }
+        }
+    }
+}

test/Ocelot.UnitTests/Responder/ErrorsToHttpStatusCodeMapperTests.cs

@@ -30,7 +30,7 @@ namespace Ocelot.UnitTests.Responder
                     new RequestTimedOutError(new Exception())
                 }))
                .When(x => x.WhenIGetErrorStatusCode())
-               .Then(x => x.ThenTheResponseIsStatusCodeIs(408))
+               .Then(x => x.ThenTheResponseIsStatusCodeIs(503))
                .BDDfy();
         }