initial commit

apps/Backend/src/middlewares/logger.middleware.ts

@@ -0,0 +1,33 @@
+import { Request, Response, NextFunction } from "express";
+
+function log(message: string) {
+  console.log(`[${new Date().toISOString()}] ${message}`);
+}
+
+export function apiLogger(req: Request, res: Response, next: NextFunction) {
+  const start = Date.now();
+  const path = req.path;
+  let capturedJsonResponse: Record<string, any> | undefined = undefined;
+
+  const originalResJson = res.json;
+  res.json = function (bodyJson, ...args) {
+    capturedJsonResponse = bodyJson;
+    return originalResJson.apply(res, [bodyJson, ...args]);
+  };
+
+  res.on("finish", () => {
+    const duration = Date.now() - start;
+    if (path.startsWith("/api")) {
+      let logLine = `${req.method} ${path} ${res.statusCode} in ${duration}ms`;
+      if (capturedJsonResponse) {
+        logLine += ` :: ${JSON.stringify(capturedJsonResponse)}`;
+      }
+      if (logLine.length > 80) {
+        logLine = logLine.slice(0, 79) + "…";
+      }
+      log(logLine);
+    }
+  });
+
+  next();
+}