diff --git a/AppServiceProxy.Tests/ProxiesJsonReaderTests.cs b/AppServiceProxy.Tests/ProxiesJsonReaderTests.cs
index 48715a2..40b2c72 100644
--- a/AppServiceProxy.Tests/ProxiesJsonReaderTests.cs
+++ b/AppServiceProxy.Tests/ProxiesJsonReaderTests.cs
@@ -1,4 +1,4 @@
-using AppServiceProxy.Configuration;
+using AppServiceProxy.Configuration.Proxies;
 
 using Xunit;
 
diff --git a/AppServiceProxy.Tests/ProxiesJsonTransformTests.cs b/AppServiceProxy.Tests/ProxiesJsonTransformTests.cs
index d8e32aa..b4f9bad 100644
--- a/AppServiceProxy.Tests/ProxiesJsonTransformTests.cs
+++ b/AppServiceProxy.Tests/ProxiesJsonTransformTests.cs
@@ -1,6 +1,6 @@
 using System;
 
-using AppServiceProxy.Configuration;
+using AppServiceProxy.Configuration.Proxies;
 
 using Xunit;
 
diff --git a/AppServiceProxy.Tests/YarpJsonReaderTests.cs b/AppServiceProxy.Tests/YarpJsonReaderTests.cs
new file mode 100644
index 0000000..9ee1fb6
--- /dev/null
+++ b/AppServiceProxy.Tests/YarpJsonReaderTests.cs
@@ -0,0 +1,39 @@
+using AppServiceProxy.Configuration.Yarp;
+
+using Xunit;
+
+namespace AppServiceProxy.Tests;
+
+public class YarpJsonReaderTests
+{
+    [Fact]
+    public void Basic()
+    {
+        var json = @"
+{
+  ""Routes"": {
+    ""route1"": {
+      ""ClusterId"": ""cluster1"",
+      ""Match"": {
+        ""Path"": ""{**catch-all}""
+      }
+    }
+  },
+  ""Clusters"": {
+    ""cluster1"": {
+      ""Destinations"": {
+        ""cluster1/destination1"": {
+          ""Address"": ""https://shibayan.jp/""
+        }
+      }
+    }
+  }
+}
+";
+
+        var yarp = YarpJsonReader.ParseJson(json);
+
+        Assert.Single(yarp.Routes);
+        Assert.Single(yarp.Clusters);
+    }
+}
diff --git a/AppServiceProxy/Configuration/FileBaseProxyConfigProvider.cs b/AppServiceProxy/Configuration/FileBaseProxyConfigProvider.cs
new file mode 100644
index 0000000..2b34e5a
--- /dev/null
+++ b/AppServiceProxy/Configuration/FileBaseProxyConfigProvider.cs
@@ -0,0 +1,77 @@
+using System.Diagnostics.CodeAnalysis;
+
+using AppServiceProxy.Configuration.Yarp;
+
+using Microsoft.Extensions.FileProviders;
+using Microsoft.Extensions.Primitives;
+
+using Yarp.ReverseProxy.Configuration;
+
+namespace AppServiceProxy.Configuration;
+
+internal class FileBaseProxyConfigProvider : IProxyConfigProvider
+{
+    public FileBaseProxyConfigProvider(IEnumerable<IConfigFileLoader> configFileLoaders)
+    {
+        _configFileLoaders = configFileLoaders;
+
+        var json = System.Text.Json.JsonSerializer.Deserialize<YarpJson>(File.ReadAllText(@"C:\Users\shibayan\Documents\yarp.json"));
+
+        _fileProvider = new PhysicalFileProvider(s_wwwroot)
+        {
+            UseActivePolling = true,
+            UsePollingFileWatcher = true
+        };
+    }
+
+    private readonly IEnumerable<IConfigFileLoader> _configFileLoaders;
+    private readonly PhysicalFileProvider _fileProvider;
+
+    private static readonly string s_wwwroot = Environment.ExpandEnvironmentVariables(@"%HOME%\site\wwwroot");
+
+    public IProxyConfig GetConfig()
+    {
+        if (TryGetConfigFileLoader(out var configFileLoader))
+        {
+            var contents = File.ReadAllText(Path.Combine(s_wwwroot, configFileLoader.ConfigFileName));
+
+            var (routes, clusters) = configFileLoader.LoadConfig(contents);
+
+            var changeToken = _fileProvider.Watch(configFileLoader.ConfigFileName);
+
+            return new FileBaseProxyConfig
+            {
+                Routes = routes,
+                Clusters = clusters,
+                ChangeToken = changeToken
+            };
+        }
+        else
+        {
+            var changeToken = _fileProvider.Watch("*.*");
+
+            return new FileBaseProxyConfig
+            {
+                Routes = Array.Empty<RouteConfig>(),
+                Clusters = Array.Empty<ClusterConfig>(),
+                ChangeToken = changeToken
+            };
+        }
+    }
+
+    private bool TryGetConfigFileLoader([NotNullWhen(true)] out IConfigFileLoader? configFileLoader)
+    {
+        configFileLoader = _configFileLoaders.FirstOrDefault(x => File.Exists(Path.Combine(s_wwwroot, x.ConfigFileName)));
+
+        return configFileLoader is not null;
+    }
+
+    private class FileBaseProxyConfig : IProxyConfig
+    {
+        public IReadOnlyList<RouteConfig> Routes { get; init; } = null!;
+
+        public IReadOnlyList<ClusterConfig> Clusters { get; init; } = null!;
+
+        public IChangeToken ChangeToken { get; init; } = null!;
+    }
+}
diff --git a/AppServiceProxy/Configuration/IConfigFileLoader.cs b/AppServiceProxy/Configuration/IConfigFileLoader.cs
new file mode 100644
index 0000000..56d9e2e
--- /dev/null
+++ b/AppServiceProxy/Configuration/IConfigFileLoader.cs
@@ -0,0 +1,10 @@
+using Yarp.ReverseProxy.Configuration;
+
+namespace AppServiceProxy.Configuration;
+
+internal interface IConfigFileLoader
+{
+    string ConfigFileName { get; }
+
+    (IReadOnlyList<RouteConfig>, IReadOnlyList<ClusterConfig>) LoadConfig(string contents);
+}
diff --git a/AppServiceProxy/Configuration/ProxiesJson.cs b/AppServiceProxy/Configuration/Proxies/ProxiesJson.cs
similarity index 95%
rename from AppServiceProxy/Configuration/ProxiesJson.cs
rename to AppServiceProxy/Configuration/Proxies/ProxiesJson.cs
index 7c94c29..3e89b66 100644
--- a/AppServiceProxy/Configuration/ProxiesJson.cs
+++ b/AppServiceProxy/Configuration/Proxies/ProxiesJson.cs
@@ -1,4 +1,4 @@
-namespace AppServiceProxy.Configuration;
+namespace AppServiceProxy.Configuration.Proxies;
 
 internal class ProxiesJson
 {
@@ -27,14 +27,18 @@ internal class MatchConditionConfig
     internal class RequestOverridesConfig
     {
         public string? Method { get; init; }
+
         public IReadOnlyDictionary<string, string> QueryString { get; init; } = null!;
+
         public IReadOnlyDictionary<string, string> Headers { get; init; } = null!;
     }
 
     internal class ResponseOverridesConfig
     {
         public int? StatusCode { get; init; }
+
         public string? StatusReason { get; init; }
+
         public IReadOnlyDictionary<string, string> Headers { get; init; } = null!;
     }
 }
diff --git a/AppServiceProxy/Configuration/Proxies/ProxiesJsonConfigFileLoader.cs b/AppServiceProxy/Configuration/Proxies/ProxiesJsonConfigFileLoader.cs
new file mode 100644
index 0000000..62299dc
--- /dev/null
+++ b/AppServiceProxy/Configuration/Proxies/ProxiesJsonConfigFileLoader.cs
@@ -0,0 +1,24 @@
+
+using Yarp.ReverseProxy.Configuration;
+
+namespace AppServiceProxy.Configuration.Proxies;
+
+internal class ProxiesJsonConfigFileLoader : IConfigFileLoader
+{
+    public string ConfigFileName => "proxies.json";
+
+    public (IReadOnlyList<RouteConfig>, IReadOnlyList<ClusterConfig>) LoadConfig(string contents)
+    {
+        try
+        {
+            var proxies = ProxiesJsonReader.ParseJson(contents);
+            var (routes, clusters) = ProxiesJsonTransform.Apply(proxies);
+
+            return (routes, clusters);
+        }
+        catch
+        {
+            return (Array.Empty<RouteConfig>(), Array.Empty<ClusterConfig>());
+        }
+    }
+}
diff --git a/AppServiceProxy/Configuration/ProxiesJsonReader.cs b/AppServiceProxy/Configuration/Proxies/ProxiesJsonReader.cs
similarity index 91%
rename from AppServiceProxy/Configuration/ProxiesJsonReader.cs
rename to AppServiceProxy/Configuration/Proxies/ProxiesJsonReader.cs
index 919213a..06e7f82 100644
--- a/AppServiceProxy/Configuration/ProxiesJsonReader.cs
+++ b/AppServiceProxy/Configuration/Proxies/ProxiesJsonReader.cs
@@ -1,8 +1,8 @@
 using System.Text.Json;
 
-using static AppServiceProxy.Configuration.ProxiesJson;
+using static AppServiceProxy.Configuration.Proxies.ProxiesJson;
 
-namespace AppServiceProxy.Configuration;
+namespace AppServiceProxy.Configuration.Proxies;
 
 internal class ProxiesJsonReader
 {
@@ -57,8 +57,8 @@ private static ProxyConfig ParseProxyConfig(JsonProperty proxy)
         var requestOverridesConfig = new RequestOverridesConfig
         {
             Method = requestOverrides.TryGetProperty("method", out var method) ? method.GetString() : null,
-            QueryString = requestOverrides.EnumerateObject().Where(x => x.Name.StartsWith("backend.request.querystring.")).ToDictionary(x => x.Name.Substring(28), x => x.Value.GetString()!),
-            Headers = requestOverrides.EnumerateObject().Where(x => x.Name.StartsWith("backend.request.headers.")).ToDictionary(x => x.Name.Substring(24), x => x.Value.GetString()!)
+            QueryString = requestOverrides.EnumerateObject().Where(x => x.Name.StartsWith("backend.request.querystring.")).ToDictionary(x => x.Name[28..], x => x.Value.GetString()!),
+            Headers = requestOverrides.EnumerateObject().Where(x => x.Name.StartsWith("backend.request.headers.")).ToDictionary(x => x.Name[24..], x => x.Value.GetString()!)
         };
 
         return requestOverridesConfig;
@@ -75,7 +75,7 @@ private static ProxyConfig ParseProxyConfig(JsonProperty proxy)
         {
             StatusCode = responseOverrides.TryGetProperty("response.statusCode", out var statusCode) ? statusCode.GetInt32() : null,
             StatusReason = responseOverrides.TryGetProperty("response.statusReason", out var statusReason) ? statusReason.GetString() : null,
-            Headers = responseOverrides.EnumerateObject().Where(x => x.Name.StartsWith("response.headers.")).ToDictionary(x => x.Name.Substring(17), x => x.Value.GetString()!)
+            Headers = responseOverrides.EnumerateObject().Where(x => x.Name.StartsWith("response.headers.")).ToDictionary(x => x.Name[17..], x => x.Value.GetString()!)
         };
 
         return responseOverridesConfig;
diff --git a/AppServiceProxy/Configuration/ProxiesJsonTransform.cs b/AppServiceProxy/Configuration/Proxies/ProxiesJsonTransform.cs
similarity index 92%
rename from AppServiceProxy/Configuration/ProxiesJsonTransform.cs
rename to AppServiceProxy/Configuration/Proxies/ProxiesJsonTransform.cs
index 725cbb6..767f3a3 100644
--- a/AppServiceProxy/Configuration/ProxiesJsonTransform.cs
+++ b/AppServiceProxy/Configuration/Proxies/ProxiesJsonTransform.cs
@@ -2,13 +2,13 @@
 
 using Yarp.ReverseProxy.Configuration;
 
-using static AppServiceProxy.Configuration.ProxiesJson;
+using static AppServiceProxy.Configuration.Proxies.ProxiesJson;
 
-namespace AppServiceProxy.Configuration;
+namespace AppServiceProxy.Configuration.Proxies;
 
-internal static class ProxiesJsonTransform
+internal static partial class ProxiesJsonTransform
 {
-    private static readonly Regex s_templateRegex = new(@"\{([^\{\}]+)\}", RegexOptions.Compiled);
+    private static readonly Regex s_templateRegex = TemplateRegex();
 
     public static (IReadOnlyList<RouteConfig>, IReadOnlyList<ClusterConfig>) Apply(IReadOnlyList<ProxyConfig> proxies)
     {
@@ -126,4 +126,7 @@ private static (string, string?) SplitBackendUri(string backendUri)
 
         return (destinationAddress, absolutePath);
     }
+
+    [GeneratedRegex(@"\{([^\{\}]+)\}", RegexOptions.Compiled)]
+    private static partial Regex TemplateRegex();
 }
diff --git a/AppServiceProxy/Configuration/ProxiesJsonFileConfigProvider.cs b/AppServiceProxy/Configuration/ProxiesJsonFileConfigProvider.cs
deleted file mode 100644
index b8a3f1b..0000000
--- a/AppServiceProxy/Configuration/ProxiesJsonFileConfigProvider.cs
+++ /dev/null
@@ -1,59 +0,0 @@
-
-using Microsoft.Extensions.FileProviders;
-using Microsoft.Extensions.Primitives;
-
-using Yarp.ReverseProxy.Configuration;
-
-namespace AppServiceProxy.Configuration;
-
-internal class ProxiesJsonFileConfigProvider : IProxyConfigProvider
-{
-    private readonly PhysicalFileProvider _fileProvider = new(s_wwwroot)
-    {
-        UseActivePolling = true,
-        UsePollingFileWatcher = true
-    };
-
-    private const string ProxiesJsonFileName = "proxies.json";
-
-    private static readonly string s_wwwroot = Environment.ExpandEnvironmentVariables(@"%HOME%\site\wwwroot");
-
-    public IProxyConfig GetConfig()
-    {
-        var proxiesJsonFile = Path.Combine(s_wwwroot, ProxiesJsonFileName);
-
-        var changeToken = _fileProvider.Watch(ProxiesJsonFileName);
-
-        return new ProxiesJsonFileConfig(proxiesJsonFile, changeToken);
-    }
-
-    private class ProxiesJsonFileConfig : IProxyConfig
-    {
-        public ProxiesJsonFileConfig(string proxiesJsonFile, IChangeToken changeToken)
-        {
-            try
-            {
-                var json = File.ReadAllText(proxiesJsonFile);
-
-                var proxies = ProxiesJsonReader.ParseJson(json);
-                var (routes, clusters) = ProxiesJsonTransform.Apply(proxies);
-
-                Routes = routes;
-                Clusters = clusters;
-            }
-            catch
-            {
-                Routes = Array.Empty<RouteConfig>();
-                Clusters = Array.Empty<ClusterConfig>();
-            }
-
-            ChangeToken = changeToken;
-        }
-
-        public IReadOnlyList<RouteConfig> Routes { get; }
-
-        public IReadOnlyList<ClusterConfig> Clusters { get; }
-
-        public IChangeToken ChangeToken { get; }
-    }
-}
diff --git a/AppServiceProxy/Configuration/Yarp/YarpJson.cs b/AppServiceProxy/Configuration/Yarp/YarpJson.cs
new file mode 100644
index 0000000..6293b4a
--- /dev/null
+++ b/AppServiceProxy/Configuration/Yarp/YarpJson.cs
@@ -0,0 +1,11 @@
+
+using Yarp.ReverseProxy.Configuration;
+
+namespace AppServiceProxy.Configuration.Yarp;
+
+internal class YarpJson
+{
+    public IReadOnlyList<RouteConfig> Routes { get; set; } = null!;
+
+    public IReadOnlyList<ClusterConfig> Clusters { get; set; } = null!;
+}
diff --git a/AppServiceProxy/Configuration/Yarp/YarpJsonConfigFileLoader.cs b/AppServiceProxy/Configuration/Yarp/YarpJsonConfigFileLoader.cs
new file mode 100644
index 0000000..4b62335
--- /dev/null
+++ b/AppServiceProxy/Configuration/Yarp/YarpJsonConfigFileLoader.cs
@@ -0,0 +1,23 @@
+
+using Yarp.ReverseProxy.Configuration;
+
+namespace AppServiceProxy.Configuration.Yarp;
+
+internal class YarpJsonConfigFileLoader : IConfigFileLoader
+{
+    public string ConfigFileName => "yarp.json";
+
+    public (IReadOnlyList<RouteConfig>, IReadOnlyList<ClusterConfig>) LoadConfig(string contents)
+    {
+        try
+        {
+            var yarp = YarpJsonReader.ParseJson(contents);
+
+            return (yarp.Routes, yarp.Clusters);
+        }
+        catch
+        {
+            return (Array.Empty<RouteConfig>(), Array.Empty<ClusterConfig>());
+        }
+    }
+}
diff --git a/AppServiceProxy/Configuration/Yarp/YarpJsonReader.cs b/AppServiceProxy/Configuration/Yarp/YarpJsonReader.cs
new file mode 100644
index 0000000..146d2f6
--- /dev/null
+++ b/AppServiceProxy/Configuration/Yarp/YarpJsonReader.cs
@@ -0,0 +1,53 @@
+using System.Text.Json;
+
+using Yarp.ReverseProxy.Configuration;
+
+namespace AppServiceProxy.Configuration.Yarp;
+
+internal class YarpJsonReader
+{
+    public static YarpJson ParseJson(string json)
+    {
+        var document = JsonDocument.Parse(json);
+
+        var routes = document.RootElement.GetProperty("Routes");
+        var clusters = document.RootElement.GetProperty("Clusters");
+
+        return new YarpJson { };
+    }
+
+    private static RouteConfig ParseRouteConfig(JsonProperty route)
+    {
+        return new RouteConfig
+        {
+            RouteId = route.Name,
+            Order = route.Value.TryGetProperty(nameof(RouteConfig.Order), out var order) ? order.GetInt32() : null,
+            ClusterId = route.Value.TryGetProperty(nameof(RouteConfig.ClusterId), out var clusterId) ? clusterId.GetString() : null,
+            AuthorizationPolicy = route.Value.TryGetProperty(nameof(RouteConfig.AuthorizationPolicy), out var authorizationPolicy) ? authorizationPolicy.GetString() : null,
+            CorsPolicy = route.Value.TryGetProperty(nameof(RouteConfig.CorsPolicy), out var corsPolicy) ? corsPolicy.GetString() : null,
+            Metadata = route.Value.TryGetProperty(nameof(RouteConfig.Metadata), out var metadata) ? metadata.Deserialize<Dictionary<string, string>>() : null,
+            Transforms = route.Value.TryGetProperty(nameof(RouteConfig.Transforms), out var transforms) ? ParseTransforms(transforms) : null
+        };
+    }
+
+    private static ClusterConfig ParseClusterConfig(JsonProperty cluster)
+    {
+        return new ClusterConfig
+        {
+            ClusterId = cluster.Name,
+            LoadBalancingPolicy = cluster.Value.TryGetProperty(nameof(ClusterConfig.LoadBalancingPolicy), out var loadBalancingPolicy) ? loadBalancingPolicy.GetString() : null,
+        };
+    }
+
+    private static IReadOnlyList<IReadOnlyDictionary<string, string>>? ParseTransforms(JsonElement transforms)
+    {
+        if (transforms.GetArrayLength() == 0)
+        {
+            return null;
+        }
+
+        return transforms.EnumerateArray()
+                         .Select(x => x.EnumerateObject().ToDictionary(xs => xs.Name, xs => xs.Value.GetString()!, StringComparer.OrdinalIgnoreCase))
+                         .ToList();
+    }
+}
diff --git a/AppServiceProxy/Program.cs b/AppServiceProxy/Program.cs
index d551939..c8c03f0 100644
--- a/AppServiceProxy/Program.cs
+++ b/AppServiceProxy/Program.cs
@@ -1,4 +1,8 @@
 using AppServiceProxy.Configuration;
+using AppServiceProxy.Configuration.Proxies;
+using AppServiceProxy.Configuration.Yarp;
+
+using Microsoft.Extensions.DependencyInjection.Extensions;
 
 using Yarp.ReverseProxy.Configuration;
 
@@ -6,7 +10,10 @@
 
 builder.Services.AddReverseProxy();
 
-builder.Services.AddSingleton<IProxyConfigProvider, ProxiesJsonFileConfigProvider>();
+builder.Services.TryAddEnumerable(ServiceDescriptor.Singleton<IConfigFileLoader, ProxiesJsonConfigFileLoader>());
+builder.Services.TryAddEnumerable(ServiceDescriptor.Singleton<IConfigFileLoader, YarpJsonConfigFileLoader>());
+
+builder.Services.AddSingleton<IProxyConfigProvider, FileBaseProxyConfigProvider>();
 
 var app = builder.Build();
 
diff --git a/AppServiceProxy/web.config b/AppServiceProxy/web.config
index b87f0a6..c62dfe0 100644
--- a/AppServiceProxy/web.config
+++ b/AppServiceProxy/web.config
@@ -14,4 +14,4 @@
       </security>
     </system.webServer>
   </location>
-</configuration>
\ No newline at end of file
+</configuration>
diff --git a/README.md b/README.md
index e39587b..5514857 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,36 @@ See also [App Service Proxy Terraform module](https://github.com/shibayan/terraf
 
 ## Usage
 
+### YARP
+
+Create `yarp.json` info `wwwroot` directory.
+
+```json
+{
+  "Routes": {
+    "route1" : {
+      "ClusterId": "cluster1",
+      "Match": {
+        "Path": "{**catch-all}"
+      }
+    }
+  },
+  "Clusters": {
+    "cluster1": {
+      "Destinations": {
+        "cluster1/destination1": {
+          "Address": "https://shibayan.jp/"
+        }
+      }
+    }
+  }
+}
+```
+
+- https://microsoft.github.io/reverse-proxy/articles/config-files.html
+
+### Azure Functions Proxies
+
 Create `proxies.json` into `wwwroot` directory.
 
 ```json
@@ -89,8 +119,6 @@ Create `proxies.json` into `wwwroot` directory.
 }
 ```
 
-## Appendix: `proxies.json` Reference
-
 - [Advanced configuration - Work with proxies in Azure Functions | Microsoft Docs](https://docs.microsoft.com/en-us/azure/azure-functions/functions-proxies#advanced-configuration)
 
 ## License