request log add stringfield length

.gitignore

@@ -437,3 +437,4 @@ MigrationBackup/
 
 # BitFun snapshot data - auto managed
 .bitfun/
+/.bitfun/search/flashgrep-index/

Configurations/SimApiOptions.cs

@@ -1,11 +1,25 @@
 using System;
+using System.Collections.Generic;
 
 namespace SimApi.Configurations;
 
 public class SimApiOptions
 {
+    /// <summary>
+    /// Redis配置
+    /// </summary>
     public string? RedisConfiguration { get; set; }
 
+    /// <summary>
+    /// 原样返回给前端的配置信息
+    /// </summary>
+    public Dictionary<string, object>? WebConfig { get; set; }
+
+    /// <summary>
+    /// WebConfig返回是否包含版本信息
+    /// </summary>
+    public bool WebConfigIncludeVersion { get; set; } = true;
+
     /// <summary>
     /// 是否启用后台任务系统 *基于Hangfire
     /// </summary>
@@ -17,6 +31,12 @@ public class SimApiOptions
     /// </summary>
     public bool EnableSimApiAuth { get; set; }
 
+    /// <summary>
+    /// 启用Cache功能
+    /// </summary>
+    public bool EnableSimApiCache { get; set; } = true;
+
+
     /// <summary>
     /// 启用SimApi网关授权, 基于上层网关透传的身份令牌验证
     /// </summary>
@@ -56,6 +76,12 @@ public class SimApiOptions
     /// </summary>
     public bool EnableSimApiResponseFilter { get; set; } = true;
 
+    /// <summary>
+    /// 启用请求日志中间件
+    /// default: false
+    /// </summary>
+    public bool EnableRequestLog { get; set; }
+
     /// <summary>
     /// 开启ForwardHeaders,开启后可以透传负载均衡的Headers
     /// default: true
@@ -104,6 +130,8 @@ public class SimApiOptions
 
     public SimApiRouteOptions SimApiRouteOptions { get; set; } = new();
 
+    public SimApiRequestLogOptions SimApiRequestLogOptions { get; set; } = new();
+
     public void ConfigureSimApiRoute(Action<SimApiRouteOptions>? options = null)
     {
         options?.Invoke(SimApiRouteOptions);
@@ -143,4 +171,9 @@ public class SimApiOptions
     {
         options?.Invoke(SimApiAuthCenterOptions);
     }
+
+    public void ConfigureSimApiRequestLog(Action<SimApiRequestLogOptions>? options = null)
+    {
+        options?.Invoke(SimApiRequestLogOptions);
+    }
 }

Configurations/SimApiRequestLogOptions.cs

@@ -0,0 +1,19 @@
+namespace SimApi.Configurations;
+
+public class SimApiRequestLogOptions
+{
+    /// <summary>
+    /// 是否打印完整的请求Header
+    /// </summary>
+    public bool ShowFullHeader { get; set; }
+
+    /// <summary>
+    /// 是否打印完整的响应体
+    /// </summary>
+    public bool ShowFullResponse { get; set; }
+
+    /// <summary>
+    /// 请求字段显示最长长度
+    /// </summary>
+    public int RequestStringLogLength { get; set; } = 0;
+}

Configurations/SimApiRouteOptions.cs

@@ -2,7 +2,7 @@
 
 public class SimApiRouteOptions
 {
-    public string? VersionRoute = "/versions";
     public string? LogoutRoute = "/auth/logout";
     public string? UserInfoRoute = "/user/info";
+    public string? WebConfigRoute = "/config";
 }

Controllers/SimApiCommonController.cs

@@ -1,13 +1,16 @@
 using System.Collections.Generic;
+using System.Linq;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Configuration;
 using SimApi.Attributes;
 using SimApi.Communications;
+using SimApi.Configurations;
 using SimApi.Helpers;
 using static SimApi.Helpers.SimApiError;
 
 namespace SimApi.Controllers;
 
-public class SimApiCommonController : SimApiBaseController
+public class SimApiCommonController(SimApiOptions simApiOptions) : SimApiBaseController
 {
     /// <summary>
     /// 错误回馈页面
@@ -21,18 +24,27 @@ public class SimApiCommonController : SimApiBaseController
         Error(code);
     }
 
-
+    /// <summary>
+    /// 给前端的自定义信息
+    /// </summary>
+    /// <returns></returns>
     [HttpPost, HttpGet]
-    public Dictionary<string, string> Versions()
+    public Dictionary<string, object> WebConfig()
     {
-        return new Dictionary<string, string>
+        var resp = simApiOptions.WebConfig!.ToDictionary();
+        if (simApiOptions.WebConfigIncludeVersion)
         {
-            { "SimApi", SimApiUtil.SimApiVersion },
-            { "App", SimApiUtil.AppVersion }
-        };
+            resp.Add("Versions", new Dictionary<string, string>
+            {
+                { "SimApi", SimApiUtil.SimApiVersion },
+                { "App", SimApiUtil.AppVersion }
+            });
+        }
+
+        return resp;
     }
-    
-    
+
+
     /// <summary>
     /// 获取已登录用户信息
     /// </summary>

Helpers/SimApiAuth.cs

@@ -1,19 +1,32 @@
 using System;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using Microsoft.Extensions.Caching.Distributed;
+using Microsoft.Extensions.DependencyInjection;
 using SimApi.Communications;
 using StackExchange.Redis;
 
 namespace SimApi.Helpers;
 
 /// <summary>
-/// 认证助手
+/// 认证助手（支持 Redis 和 InMemory 两种模式）
 /// </summary>
-public class SimApiAuth(IDistributedCache cache, IConnectionMultiplexer redis)
+public class SimApiAuth
 {
     private const string TokenCacheKey = "SimApi:Auth:Token:{token}";
     private const string TokenSetCacheKey = "SimApi:Auth:User:{userId}";
-    private readonly IDatabase _redisDb = redis.GetDatabase();
+
+    private readonly IDistributedCache _cache;
+    private readonly IDatabase? _redisDb;
+
+    // InMemory 模式：用户 → Token集合
+    private readonly ConcurrentDictionary<string, ConcurrentDictionary<string, byte>> _userTokens = new();
+
+    public SimApiAuth(IDistributedCache cache, IServiceProvider sp)
+    {
+        _cache = cache;
+        _redisDb = sp.GetService<IConnectionMultiplexer>()?.GetDatabase();
+    }
 
     /// <summary>
     /// 登录信息
@@ -28,13 +41,20 @@ public class SimApiAuth(IDistributedCache cache, IConnectionMultiplexer redis)
         token ??= Guid.NewGuid().ToString();
         var cacheKey = TokenCacheKey.Replace("{token}", token);
         var setCacheKey = TokenSetCacheKey.Replace("{userId}", loginItem.Id);
-        _redisDb.SetAdd(setCacheKey, token);
-        cache.SetString(cacheKey, SimApiUtil.Json(loginItem),
-            new DistributedCacheEntryOptions
-            {
-                SlidingExpiration = expireTime
-            });
-        _redisDb.KeyExpire(setCacheKey, expireTime.Value);
+
+        _cache.SetString(cacheKey, SimApiUtil.Json(loginItem),
+            new DistributedCacheEntryOptions { SlidingExpiration = expireTime });
+
+        if (_redisDb != null)
+        {
+            _redisDb.SetAdd(setCacheKey, token);
+            _redisDb.KeyExpire(setCacheKey, expireTime.Value);
+        }
+        else
+        {
+            var tokens = _userTokens.GetOrAdd(loginItem.Id, _ => new ConcurrentDictionary<string, byte>());
+            tokens.TryAdd(token, 0);
+        }
 
         return token;
     }
@@ -48,10 +68,15 @@ public class SimApiAuth(IDistributedCache cache, IConnectionMultiplexer redis)
     public string Update(SimApiLoginItem loginItem, string token)
     {
         var cacheKey = TokenCacheKey.Replace("{token}", token);
-        cache.SetString(cacheKey, SimApiUtil.Json(loginItem));
-        var ttl = _redisDb.KeyTimeToLive(cacheKey);
-        var setCacheKey = TokenSetCacheKey.Replace("{userId}", loginItem.Id);
-        _redisDb.KeyExpire(setCacheKey, ttl);
+        _cache.SetString(cacheKey, SimApiUtil.Json(loginItem));
+
+        if (_redisDb != null)
+        {
+            var ttl = _redisDb.KeyTimeToLive(cacheKey);
+            var setCacheKey = TokenSetCacheKey.Replace("{userId}", loginItem.Id);
+            _redisDb.KeyExpire(setCacheKey, ttl);
+        }
+
         return token;
     }
 
@@ -64,9 +89,10 @@ public class SimApiAuth(IDistributedCache cache, IConnectionMultiplexer redis)
     public SimApiLoginItem? GetLogin(string token)
     {
         var cacheKey = TokenCacheKey.Replace("{token}", token);
-        var login = cache.GetString(cacheKey);
+        var login = _cache.GetString(cacheKey);
         var resp = login != null ? SimApiUtil.FromJson<SimApiLoginItem>(login) : null;
-        if (resp != null)
+
+        if (resp != null && _redisDb != null)
         {
             var ttl = _redisDb.KeyTimeToLive(cacheKey);
             var setCacheKey = TokenSetCacheKey.Replace("{userId}", resp.Id);
@@ -83,26 +109,42 @@ public class SimApiAuth(IDistributedCache cache, IConnectionMultiplexer redis)
     /// <returns></returns>
     public SimApiLoginItem[] GetAllLogins(string userId)
     {
-        var setCacheKey = TokenSetCacheKey.Replace("{userId}", userId);
-        var allLogins = _redisDb.SetMembers(setCacheKey).ToStringArray();
-        var resp = new List<SimApiLoginItem>();
-        foreach (var login in allLogins)
+        if (_redisDb != null)
         {
-            if (login != null)
+            var setCacheKey = TokenSetCacheKey.Replace("{userId}", userId);
+            var allLogins = _redisDb.SetMembers(setCacheKey).ToStringArray();
+            var resp = new List<SimApiLoginItem>();
+            foreach (var login in allLogins)
             {
-                var item = GetLogin(login);
-                if (item != null)
+                if (login != null)
                 {
-                    resp.Add(item);
-                }
-                else
-                {
-                    _redisDb.SetRemove(setCacheKey, login);
+                    var item = GetLogin(login);
+                    if (item != null)
+                        resp.Add(item);
+                    else
+                        _redisDb.SetRemove(setCacheKey, login);
                 }
             }
-        }
 
-        return resp.ToArray();
+            return resp.ToArray();
+        }
+        else
+        {
+            if (!_userTokens.TryGetValue(userId, out var tokens))
+                return [];
+
+            var resp = new List<SimApiLoginItem>();
+            foreach (var token in tokens.Keys)
+            {
+                var item = GetLogin(token);
+                if (item != null)
+                    resp.Add(item);
+                else
+                    tokens.TryRemove(token, out _);
+            }
+
+            return resp.ToArray();
+        }
     }
 
     /// <summary>
@@ -111,18 +153,32 @@ public class SimApiAuth(IDistributedCache cache, IConnectionMultiplexer redis)
     /// <param name="userId"></param>
     public void LogoutAll(string userId)
     {
-        var setCacheKey = TokenSetCacheKey.Replace("{userId}", userId);
-        var allLogins = _redisDb.SetMembers(setCacheKey).ToStringArray();
-        foreach (var login in allLogins)
+        if (_redisDb != null)
         {
-            if (login != null)
+            var setCacheKey = TokenSetCacheKey.Replace("{userId}", userId);
+            var allLogins = _redisDb.SetMembers(setCacheKey).ToStringArray();
+            foreach (var login in allLogins)
             {
-                var cacheKey = TokenCacheKey.Replace("{token}", login);
-                cache.Remove(cacheKey);
+                if (login != null)
+                {
+                    var cacheKey = TokenCacheKey.Replace("{token}", login);
+                    _cache.Remove(cacheKey);
+                }
+            }
+
+            _redisDb.KeyDelete(setCacheKey);
+        }
+        else
+        {
+            if (_userTokens.TryRemove(userId, out var tokens))
+            {
+                foreach (var token in tokens.Keys)
+                {
+                    var cacheKey = TokenCacheKey.Replace("{token}", token);
+                    _cache.Remove(cacheKey);
+                }
             }
         }
-
-        _redisDb.KeyDelete(setCacheKey);
     }
 
     /// <summary>
@@ -132,13 +188,22 @@ public class SimApiAuth(IDistributedCache cache, IConnectionMultiplexer redis)
     public void Logout(string token)
     {
         var item = GetLogin(token);
-        if (item != null)
+
+        if (_redisDb != null)
         {
-            var setCacheKey = TokenSetCacheKey.Replace("{userId}", item.Id);
-            _redisDb.SetRemove(setCacheKey, token);
+            if (item != null)
+            {
+                var setCacheKey = TokenSetCacheKey.Replace("{userId}", item.Id);
+                _redisDb.SetRemove(setCacheKey, token);
+            }
+        }
+        else
+        {
+            if (item != null && _userTokens.TryGetValue(item.Id, out var tokens))
+                tokens.TryRemove(token, out _);
         }
 
         var cacheKey = TokenCacheKey.Replace("{token}", token);
-        cache.Remove(cacheKey);
+        _cache.Remove(cacheKey);
     }
-}
+}

Middlewares/SimApiRequestLogMiddleware.cs

@@ -0,0 +1,124 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Runtime.ExceptionServices;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Logging;
+using SimApi.Configurations;
+using SimApi.Helpers;
+
+namespace SimApi.Middlewares;
+
+/// <summary>
+/// 请求日志中间件
+/// </summary>
+public class SimApiRequestLogMiddleware(
+    RequestDelegate next,
+    ILogger<SimApiRequestLogMiddleware> log,
+    SimApiRequestLogOptions options)
+{
+    public async Task InvokeAsync(HttpContext context)
+    {
+        var sw = Stopwatch.StartNew();
+        var fullUrl =
+            $"{context.Request.Scheme}://{context.Request.Host}{context.Request.Path}{context.Request.QueryString}";
+
+        var logMessage = new StringBuilder();
+        logMessage.AppendLine($"[{context.Request.Method}] {fullUrl}");
+
+        if (options.ShowFullHeader)
+        {
+            logMessage.AppendLine("*( RequestHeaders [Full] ) =>");
+            var headersDict = new Dictionary<string, string>();
+            foreach (var header in context.Request.Headers)
+            {
+                headersDict[header.Key] = header.Value.ToString();
+            }
+
+            logMessage.AppendLine(JsonSerializer.Serialize(headersDict));
+        }
+        else
+        {
+            logMessage.AppendLine("*( RequestHeaders ) =>");
+            var token = context.Request.Headers["Token"].FirstOrDefault() ?? "";
+            var queryId = context.Request.Headers["Query-Id"].FirstOrDefault() ?? "";
+            logMessage.AppendLine($"Token: {token}  QueryId: {queryId}");
+        }
+
+        context.Request.EnableBuffering();
+        var requestBodyText = await new StreamReader(context.Request.Body).ReadToEndAsync();
+        context.Request.Body.Seek(0, SeekOrigin.Begin);
+        logMessage.AppendLine("*( RequestBody ) =>");
+        if (options.RequestStringLogLength == 0)
+        {
+            logMessage.AppendLine(requestBodyText);
+        }
+        else
+        {
+            var reqLogs = SimApiUtil.FromJson<Dictionary<string, object>>(requestBodyText);
+            foreach (var reqLog in reqLogs)
+            {
+                if (reqLog.Value is not JsonElement { ValueKind: JsonValueKind.String } je) continue;
+                var str = je.GetString();
+                if (str?.Length > options.RequestStringLogLength)
+                {
+                    reqLogs[reqLog.Key] = str[..options.RequestStringLogLength] + $"...({str.Length})";
+                }
+            }
+
+            logMessage.AppendLine(SimApiUtil.Json(reqLogs));
+        }
+
+        var originalBodyStream = context.Response.Body;
+        using var responseBody = new MemoryStream();
+        context.Response.Body = responseBody;
+
+        ExceptionDispatchInfo? edi = null;
+
+        try
+        {
+            await next(context);
+        }
+        catch (Exception ex)
+        {
+            edi = ExceptionDispatchInfo.Capture(ex);
+        }
+        finally
+        {
+            sw.Stop();
+
+            responseBody.Seek(0, SeekOrigin.Begin);
+            var responseText = await new StreamReader(responseBody).ReadToEndAsync();
+
+            logMessage.AppendLine($"*( Response [{context.Response.StatusCode}] ) =>");
+            if (options.ShowFullResponse)
+            {
+                logMessage.Append(responseText);
+            }
+            else
+            {
+                var truncated = responseText.Length > 200 ? responseText[..200] : responseText;
+                logMessage.Append(truncated);
+            }
+
+            if (edi != null)
+            {
+                logMessage.Append(Environment.NewLine);
+                logMessage.Append($"Exception: {edi.SourceException}");
+            }
+
+            responseBody.Seek(0, SeekOrigin.Begin);
+            await responseBody.CopyToAsync(originalBodyStream);
+            context.Response.Body = originalBodyStream;
+
+            log.LogInformation(logMessage.ToString());
+        }
+
+        edi?.Throw();
+    }
+}

README.md

@@ -13,6 +13,7 @@ ASP.NET Core API 基础框架库，提供统一异常拦截、响应封装、Tok
 var builder = WebApplication.CreateBuilder(args);
 builder.Services.AddSimApi(options =>
 {
+    // RedisConfiguration 可选：配置则使用 Redis，不配则自动使用 InMemory
     options.RedisConfiguration = "localhost:6379";
     options.EnableSimApiAuth = true;
     options.EnableSimApiDoc = true;
@@ -191,6 +192,26 @@ public class SimApiLoginItem {
 
 **Token 传参**: Header `Token: <value>`
 
+### 存储模式
+
+`SimApiAuth` 内部自动判断，无需手动配置：
+
+| 条件 | 存储后端 | 用户↔Token 映射 |
+|------|---------|-----------------|
+| 配置了 `RedisConfiguration` | Redis（`IDistributedCache` + Set） | Redis Set |
+| 未配置 `RedisConfiguration` | InMemory（`DistributedMemoryCache`） | `ConcurrentDictionary` |
+
+- **Redis 模式**：支持多实例共享，Token 持久化，适合生产环境
+- **InMemory 模式**：零配置即可启用 `EnableSimApiAuth`，适合开发/测试/单实例场景。注意重启后所有登录态丢失
+
+```csharp
+// 不配 Redis 也能用 Auth
+builder.Services.AddSimApi(options =>
+{
+    options.EnableSimApiAuth = true;  // 自动使用 InMemory
+});
+```
+
 ### 认证后处理 Hook — ISimApiAuthChecker
 
 ```csharp
@@ -406,9 +427,11 @@ IMinioClient Client { get; }             // 底层 MinIO 客户端
 
 ---
 
-## 8. Redis 缓存 — SimApiCache
+## 8. 缓存 — SimApiCache
 
-依赖 `RedisConfiguration`，Key 自动加前缀 `SimApi:Cache:`。
+通过 `EnableSimApiCache`（默认 `true`）控制。Key 自动加前缀 `SimApi:Cache:`。
+
+存储后端与 `SimApiAuth` 一致：配了 `RedisConfiguration` 就用 Redis，否则用 InMemory。
 
 ```csharp
 void Set(string key, object value, DistributedCacheEntryOptions? options = null);
@@ -617,6 +640,7 @@ builder.Services.AddSimApi(options =>
 
     // 功能开关
     options.EnableSimApiAuth         = false;    // Token 认证
+    options.EnableSimApiCache        = true;     // 缓存（Redis 或 InMemory）
     options.EnableSimApiAuthGate     = false;    // Auth Center 网关鉴权
     options.EnableSimApiDoc          = false;    // Swagger 文档
     options.EnableSimApiStorage      = false;    // S3 存储

SimApiExtensions.cs

@@ -36,11 +36,22 @@ public static class SimApiExtensions
     {
         var simApiOptions = new SimApiOptions();
         options?.Invoke(simApiOptions);
+        simApiOptions.WebConfig ??= new();
+        builder.AddSingleton(simApiOptions);
+
         if (simApiOptions.RedisConfiguration != null)
         {
             builder.AddStackExchangeRedisCache(x => x.Configuration = simApiOptions.RedisConfiguration);
             builder.AddSingleton<IConnectionMultiplexer>(_ =>
                 ConnectionMultiplexer.Connect(simApiOptions.RedisConfiguration));
+        }
+        else if (simApiOptions.EnableSimApiAuth || simApiOptions.EnableSimApiCache)
+        {
+            builder.AddDistributedMemoryCache();
+        }
+
+        if (simApiOptions.EnableSimApiCache)
+        {
             builder.AddSingleton<SimApiCache>();
         }
 
@@ -209,6 +220,7 @@ public static class SimApiExtensions
                 x.OperationFilter<SimApiSignOperationFilter>();
                 x.OperationFilter<AesBodyOperationFilter>();
                 x.SchemaFilter<GlobalDynamicObjectSchemaFilter>();
+                x.SchemaFilter<DictionarySchemaFilter>();
                 x.DocumentFilter<RemoveEmptyTagsFilter>();
                 if (simApiOptions.EnableSimApiAuth)
                 {
@@ -339,7 +351,7 @@ public static class SimApiExtensions
             }
         }
 
-        builder.AddSingleton(simApiOptions);
+        builder.AddSingleton(simApiOptions.SimApiRequestLogOptions);
         return builder;
     }
 
@@ -358,6 +370,11 @@ public static class SimApiExtensions
             logger.LogInformation("开始配置 RedisCache ...");
         }
 
+        if (options.EnableSimApiCache)
+        {
+            logger.LogInformation("开始配置SimApiCache...");
+        }
+
         //请求一下检测存储错误
         if (options.EnableSimApiStorage)
         {
@@ -445,18 +462,6 @@ public static class SimApiExtensions
             builder.UseMiddleware<SimApiAuthMiddleware>();
         }
 
-
-        if (options.SimApiRouteOptions.VersionRoute != null)
-        {
-            logger.LogInformation("注册内置Route: Versions => {}", options.SimApiRouteOptions.LogoutRoute);
-            builder.MapControllerRoute(name: "Versions", pattern: options.SimApiRouteOptions.VersionRoute,
-                defaults: new
-                {
-                    controller = "SimApiCommon",
-                    action = "Versions"
-                });
-        }
-
         if (options.SimApiRouteOptions.UserInfoRoute != null)
         {
             logger.LogInformation("注册内置Route: UserInfo => {}", options.SimApiRouteOptions.UserInfoRoute);
@@ -479,6 +484,17 @@ public static class SimApiExtensions
                 });
         }
 
+        if (options.SimApiRouteOptions.WebConfigRoute != null)
+        {
+            logger.LogInformation("注册内置Route: Logout => {}", options.SimApiRouteOptions.WebConfigRoute);
+            builder.MapControllerRoute(name: "WebConfig", pattern: options.SimApiRouteOptions.WebConfigRoute,
+                defaults: new
+                {
+                    controller = "SimApiCommon",
+                    action = "WebConfig"
+                });
+        }
+
         if (options.EnableSimApiDoc)
         {
             logger.LogInformation("开始配置SimApiDoc...");
@@ -497,6 +513,12 @@ public static class SimApiExtensions
                 });
         }
 
+        if (options.EnableRequestLog)
+        {
+            logger.LogInformation("开始配置SimApiRequestLog...");
+            builder.UseMiddleware<SimApiRequestLogMiddleware>();
+        }
+
         if (options.EnableSimApiException)
         {
             logger.LogInformation("开始配置SimApiException...");

SwaggerFilters/DictionarySchemaFilter.cs

@@ -0,0 +1,24 @@
+using System.Collections.Generic;
+using Microsoft.OpenApi;
+using Swashbuckle.AspNetCore.SwaggerGen;
+
+namespace SimApi.SwaggerFilters;
+
+public class DictionarySchemaFilter : ISchemaFilter
+{
+    public void Apply(IOpenApiSchema schema, SchemaFilterContext context)
+    {
+        if (!context.Type.IsGenericType || context.Type.GetGenericTypeDefinition() != typeof(Dictionary<,>))
+            return;
+
+        if (schema is not OpenApiSchema concrete) return;
+
+        var valueType = context.Type.GetGenericArguments()[1];
+        concrete.Type = JsonSchemaType.Object;
+        concrete.AdditionalPropertiesAllowed = true;
+        concrete.AdditionalProperties = context.SchemaGenerator.GenerateSchema(valueType, context.SchemaRepository);
+        concrete.Properties?.Clear();
+        concrete.Example = null;
+        concrete.Examples?.Clear();
+    }
+}