.gitignore

@@ -45,4 +45,8 @@ next-env.d.ts
 
 bun.lockb
 pnpm-lock.yaml
-pnpm-workspace.yaml
+pnpm-workspace.yaml
+
+# logs
+logs/
+*.log

next.config.ts

@@ -6,7 +6,12 @@ const nextConfig: NextConfig = {
   sassOptions: {
     includePaths: [path.join(__dirname, './src/styles')],
   },
-  serverExternalPackages: ['@react-pdf/renderer'],
+  serverExternalPackages: ['@react-pdf/renderer', 'pino'],
+  logging: {
+    fetches: {
+      fullUrl: true,
+    },
+  },
   async rewrites() {
     return [
       {

package.json

@@ -29,6 +29,7 @@
     "next": "15.2.4",
     "nodemailer": "^7.0.3",
     "pdf-lib": "^1.17.1",
+    "pino": "^9.7.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "react-to-pdf": "^2.0.0",

src/libs/logger.ts

@@ -0,0 +1,51 @@
+import { NextRequest } from 'next/server'
+import { join } from 'path'
+import pino from 'pino'
+
+/* 로그 파일 경로 */
+const logFilePath = join('.', 'logs', 'onsite-survey.log')
+
+/* 로거 생성 함수 */
+const createLogger = (): pino.Logger => {
+  try {
+    return pino({
+      level: 'info',
+      timestamp: pino.stdTimeFunctions.isoTime,
+      transport: {
+        targets: [
+          {
+            target: 'pino/file',
+            options: {
+              destination: logFilePath,
+              mkdir: true,
+              sync: false,
+            },
+          },
+        ],
+      },
+    })
+  } catch (error) {
+    console.error('Pino transport 생성 실패, 기본 로거 사용:', error)
+    return pino({
+      level: 'info',
+      timestamp: pino.stdTimeFunctions.isoTime,
+    })
+  }
+}
+
+/* 로거 인스턴스 */
+export const logger = createLogger()
+
+/* 로그 기록 함수 */
+export const writeLog = async (request: NextRequest, responseStatus: number): Promise<void> => {
+  const logData = {
+    timestamp: new Date().toISOString(),
+    status: responseStatus,
+    method: request.method,
+    url: request.url,
+    // headers: Object.fromEntries(request.headers),
+    query: Object.fromEntries(new URL(request.url).searchParams),
+    body: request.body ? await request.clone().text() : undefined,
+  }
+  logger.info(logData, 'API Request')
+}