Initial commit for open-source version

backend/src/middleware/errorHandler.ts

@@ -0,0 +1,9 @@
+import { Request, Response, NextFunction } from "express";
+
+export const errorHandler = (err: any, req: Request, res: Response, next: NextFunction) => {
+  console.error(err);
+  res.status(err.status || 500).json({
+    success: false,
+    error: err.message || "服务器内部错误",
+  });
+};

backend/src/middleware/validateRequest.ts

@@ -0,0 +1,14 @@
+import { Request, Response, NextFunction } from "express";
+
+export const validateRequest = (requiredParams: string[]) => {
+  return (req: Request, res: Response, next: NextFunction) => {
+    const missingParams = requiredParams.filter((param) => !req.query[param] && !req.body[param]);
+    if (missingParams.length > 0) {
+      return res.status(400).json({
+        success: false,
+        error: `缺少必要的参数: ${missingParams.join(", ")}`,
+      });
+    }
+    next();
+  };
+};