initial commit

2026-06-26 04:20:20 +08:00
commit 869006e5e7
64 changed files with 4632 additions and 0 deletions
@@ -0,0 +1,50 @@
+public class ExceptionHandlerMiddleware
+{
+    private readonly RequestDelegate _next;
+    private readonly ILogger<ExceptionHandlerMiddleware> _logger;
+
+    public ExceptionHandlerMiddleware(RequestDelegate next, ILogger<ExceptionHandlerMiddleware> logger)
+    {
+        _next = next;
+        _logger = logger;
+    }
+
+    public async Task InvokeAsync(HttpContext context)
+    {
+        try
+        {
+            await _next(context);
+        }
+        catch (NotFoundException ex)
+        {
+            _logger.LogWarning("{Message}", ex.Message);
+            await WriteAsync(context, StatusCodes.Status404NotFound,
+                ApiResponse<object>.Fail(StatusCodes.Status404NotFound, ex.Message, ex.ErrorCode));
+        }
+        catch (ValidationException ex)
+        {
+            _logger.LogWarning("{Message}", ex.Message);
+            await WriteAsync(context, StatusCodes.Status422UnprocessableEntity,
+                ApiResponse<object>.Fail(StatusCodes.Status422UnprocessableEntity, ex.Message, ex.ErrorCode));
+        }
+        catch (ConflictException ex)
+        {
+            _logger.LogWarning("{Message}", ex.Message);
+            await WriteAsync(context, StatusCodes.Status409Conflict,
+                ApiResponse<object>.Fail(StatusCodes.Status409Conflict, ex.Message, ex.ErrorCode));
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Unhandled exception");
+            await WriteAsync(context, StatusCodes.Status500InternalServerError,
+                ApiResponse<object>.Fail(StatusCodes.Status500InternalServerError,
+                    "An unexpected error occurred", "INTERNAL_ERROR"));
+        }
+    }
+
+    private static async Task WriteAsync<T>(HttpContext context, int status, ApiResponse<T> body)
+    {
+        context.Response.StatusCode = status;
+        await context.Response.WriteAsJsonAsync(body);
+    }
+}