Revert "looks like formatting, and change pino to bunyan"

This reverts commit db00a95.

src/frontend/middleware.ts

@@ -1,25 +1,24 @@
-import { NextResponse } from 'next/server';
-import type { NextRequest } from 'next/server';
+import { NextResponse } from 'next/server'
+import type { NextRequest } from 'next/server'
 import { logger } from './utils/logger';
 
 // This function can be marked `async` if using `await` inside
 export function middleware(request: NextRequest) {
-  const startTime = Date.now();
-  const requestId = request.headers.get('x-request-id');
-  const response = NextResponse.next();
-  const duration = Date.now() - startTime;
-  logger.info({
-    'log.source': 'middleware.ts',
-    'http.method': request.method,
-    'request.id': requestId,
-    'http.url': request.url,
-    'http.status': response.status,
-    duration_ms: duration,
-  });
-  return response;
+    const startTime = Date.now();
+    const requestId = request.headers.get('x-request-id');
+    const response = NextResponse.next();
+    const duration = Date.now() - startTime;
+    logger.info(JSON.stringify({
+      "timestamp": new Date().toISOString(),
+      "http.method": request.method, 
+        "request.id": requestId, 
+        "http.url": request.url, 
+        "http.status": response.status, 
+        "duration_ms": duration}));
+    return response;
 }
-
+ 
 // See "Matching Paths" below to learn more
 export const config = {
   matcher: '/(.*)',
-};
+}