diff --git a/src/middlewares/log.ts b/src/middlewares/log.ts
index 26c85bd..9db083d 100644
--- a/src/middlewares/log.ts
+++ b/src/middlewares/log.ts
@@ -7,6 +7,14 @@ if (!process.env.ELASTICSEARCH_INDEX) {
 
 const ELASTICSEARCH_INDEX = process.env.ELASTICSEARCH_INDEX;
 
+const LOG_LEVEL_MAP: Record<string, number> = {
+  debug: 4,
+  info: 3,
+  warning: 2,
+  error: 1,
+  none: 0,
+};
+
 async function logMiddleware(req: Request, res: Response, next: NextFunction) {
   if (!req.url.startsWith("/api")) return next();
 
@@ -25,7 +33,14 @@ async function logMiddleware(req: Request, res: Response, next: NextFunction) {
   req.app.locals.logData = {};
 
   res.on("finish", () => {
+    const level = LOG_LEVEL_MAP[process.env.LOG_LEVEL ?? "info"] || 1;
+
+    if (level === 1 && res.statusCode < 500) return;
+    if (level === 2 && res.statusCode < 400) return;
+    if (level === 3 && res.statusCode < 200) return;
+
     const obj = {
+      logType: res.statusCode >= 500 ? "error" : res.statusCode >= 400 ? "warning" : "info",
       systemName: "JWS-SOS",
       startTimeStamp: timestamp,
       endTimeStamp: new Date().toString(),
@@ -43,8 +58,8 @@ async function logMiddleware(req: Request, res: Response, next: NextFunction) {
           : { 200: "success", 201: "created_success", 204: "no_content", 304: "success" }[
               res.statusCode
             ],
-      input: req.body,
-      output: data,
+      // input: (level < 1 && req.body) || undefined,
+      // output: (level < 1 && data) || undefined,
       ...req.app.locals.logData,
     };