Add comprehensive ASP.NET Core integration examples

README.md

@@ -181,6 +181,153 @@ var config = new CallStackEnricherConfiguration()
         onException: ex => Console.WriteLine($"Enricher error: {ex.Message}"));
 ```
 
+## ASP.NET Core Integration
+
+### Program.cs Configuration
+
+```csharp
+using Serilog;
+using Serilog.Events;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Configure Serilog with CallStack enricher
+builder.Host.UseSerilog((context, configuration) =>
+    configuration
+        .ReadFrom.Configuration(context.Configuration)
+        .Enrich.WithCallStack(config => config
+            .WithCallStackFormat(useExceptionLikeFormat: true, maxFrames: 5)
+            .SkipNamespace("Microsoft.AspNetCore")
+            .SkipNamespace("System"))
+        .WriteTo.Console()
+        .WriteTo.File("logs/app-.log", rollingInterval: RollingInterval.Day));
+
+var app = builder.Build();
+
+// Add Serilog request logging middleware
+app.UseSerilogRequestLogging(options =>
+{
+    options.MessageTemplate = "Handled {RequestPath}";
+    options.GetLevel = (httpContext, elapsed, ex) => 
+        ex != null ? LogEventLevel.Error : LogEventLevel.Information;
+});
+
+app.MapControllers();
+app.Run();
+```
+
+### appsettings.json Configuration
+
+```json
+{
+  "Serilog": {
+    "Using": ["Serilog.Enrichers.CallStack"],
+    "MinimumLevel": {
+      "Default": "Information",
+      "Override": {
+        "Microsoft.AspNetCore": "Warning"
+      }
+    },
+    "WriteTo": [
+      {
+        "Name": "Console",
+        "Args": {
+          "outputTemplate": "[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj} | {CallStack}{NewLine}{Exception}"
+        }
+      }
+    ],
+    "Enrich": [
+      {
+        "Name": "WithCallStack",
+        "Args": {
+          "useExceptionLikeFormat": true,
+          "maxFrames": 10,
+          "skipNamespaces": ["Microsoft.AspNetCore", "System.Threading"]
+        }
+      }
+    ]
+  }
+}
+```
+
+### Controller Example
+
+```csharp
+[ApiController]
+[Route("api/[controller]")]
+public class UserController : ControllerBase
+{
+    private readonly ILogger<UserController> _logger;
+    private readonly IUserService _userService;
+
+    public UserController(ILogger<UserController> logger, IUserService userService)
+    {
+        _logger = logger;
+        _userService = userService;
+    }
+
+    [HttpGet("{id}")]
+    public async Task<IActionResult> GetUser(int id)
+    {
+        _logger.LogInformation("Getting user {UserId}", id);
+
+        try
+        {
+            var user = await _userService.GetUserAsync(id);
+            _logger.LogInformation("Successfully retrieved user {UserId}", id);
+            return Ok(user);
+        }
+        catch (Exception ex)
+        {
+            // CallStack enricher will show: UserService.GetUserAsync:45 --> UserController.GetUser:23
+            _logger.LogError(ex, "Failed to get user {UserId}", id);
+            return StatusCode(500);
+        }
+    }
+}
+```
+
+### Service Layer Integration
+
+```csharp
+public class UserService : IUserService
+{
+    private readonly ILogger<UserService> _logger;
+    private readonly IUserRepository _repository;
+
+    public UserService(ILogger<UserService> logger, IUserRepository repository)
+    {
+        _logger = logger;
+        _repository = repository;
+    }
+
+    public async Task<User> GetUserAsync(int id)
+    {
+        _logger.LogInformation("Processing user request for {UserId}", id);
+
+        // This will show the full call chain when logged
+        var user = await _repository.FindByIdAsync(id);
+
+        if (user == null)
+        {
+            _logger.LogWarning("User {UserId} not found", id);
+            throw new UserNotFoundException($"User {id} not found");
+        }
+
+        return user;
+    }
+}
+```
+
+### Expected Log Output
+
+```
+[14:30:25 INF] Getting user 123 | UserController.GetUser:20
+[14:30:25 INF] Processing user request for 123 | UserService.GetUserAsync:15 --> UserController.GetUser:25
+[14:30:25 INF] Successfully retrieved user 123 | UserController.GetUser:27
+[14:30:25 INF] Handled /api/user/123
+```
+
 ## Advanced Configuration Examples
 
 ### Minimal Configuration