first commit

src/middleware/errorHandler.js

@@ -0,0 +1,17 @@
+export const errorHandler = (err, req, res, next) => {
+  // eslint-disable-next-line no-console
+  console.error('Hata:', err);
+  const status = err.status || 500;
+  const code = err.code || 'INTERNAL_ERROR';
+  const message = err.message || 'Sunucu hatası';
+  const response = {
+    error: {
+      code,
+      message
+    }
+  };
+  if (err.details) {
+    response.error.details = err.details;
+  }
+  return res.status(status).json(response);
+};