From a7e482b9e6fcddcc77729593f53ccb787ede20a0 Mon Sep 17 00:00:00 2001
From: Artur Sudnik-Hrynkiewicz <artur.sudnik@gmail.com>
Date: Tue, 17 Oct 2023 14:27:42 +0200
Subject: [PATCH 1/2] feat: adding response body to the access log

---
 .../src/middlewares/http-logger.middleware.ts | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/apps/vc-api/src/middlewares/http-logger.middleware.ts b/apps/vc-api/src/middlewares/http-logger.middleware.ts
index 055a827..67cf022 100644
--- a/apps/vc-api/src/middlewares/http-logger.middleware.ts
+++ b/apps/vc-api/src/middlewares/http-logger.middleware.ts
@@ -12,6 +12,27 @@ export class HttpLoggerMiddleware implements NestMiddleware {
 
     let finished = false;
 
+    const oldWrite = res.write;
+    const oldEnd = res.end;
+    const chunks: Buffer[] = [];
+    let responseBody: string;
+
+    res.write = (...args: unknown[]): boolean => {
+      chunks.push(args[0] as Buffer);
+      return oldWrite.apply(res, args);
+    };
+
+    res.end = (...args: unknown[]) => {
+      const chunk = args[0] as Buffer;
+
+      if (chunk) {
+        chunks.push(chunk);
+      }
+
+      responseBody = Buffer.concat(chunks).toString();
+      return oldEnd.apply(res, args);
+    };
+
     res.on('finish', () => {
       const message = `${res.statusCode} ${res.statusMessage} | ${req.ip} | [${method}] ${url} - ${
         Date.now() - requestStarted
@@ -30,6 +51,10 @@ export class HttpLoggerMiddleware implements NestMiddleware {
       if (req.body) {
         this.logger.debug(`request body: ${JSON.stringify(req.body)}`);
       }
+
+      if (responseBody) {
+        this.logger.debug(`response body: ${responseBody}`);
+      }
     });
 
     res.on('close', () => {

From 1bec34c4a90f34b1302996e16de6ab7fc27d0685 Mon Sep 17 00:00:00 2001
From: Artur Sudnik-Hrynkiewicz <artur.sudnik@gmail.com>
Date: Tue, 17 Oct 2023 15:26:05 +0200
Subject: [PATCH 2/2] chore: adding error handling

---
 .../src/middlewares/http-logger.middleware.ts | 54 ++++++++++++-------
 1 file changed, 36 insertions(+), 18 deletions(-)

diff --git a/apps/vc-api/src/middlewares/http-logger.middleware.ts b/apps/vc-api/src/middlewares/http-logger.middleware.ts
index 67cf022..1752583 100644
--- a/apps/vc-api/src/middlewares/http-logger.middleware.ts
+++ b/apps/vc-api/src/middlewares/http-logger.middleware.ts
@@ -12,26 +12,44 @@ export class HttpLoggerMiddleware implements NestMiddleware {
 
     let finished = false;
 
-    const oldWrite = res.write;
-    const oldEnd = res.end;
-    const chunks: Buffer[] = [];
     let responseBody: string;
 
-    res.write = (...args: unknown[]): boolean => {
-      chunks.push(args[0] as Buffer);
-      return oldWrite.apply(res, args);
-    };
-
-    res.end = (...args: unknown[]) => {
-      const chunk = args[0] as Buffer;
-
-      if (chunk) {
-        chunks.push(chunk);
-      }
-
-      responseBody = Buffer.concat(chunks).toString();
-      return oldEnd.apply(res, args);
-    };
+    try {
+      const oldWrite = res.write;
+      const oldEnd = res.end;
+      const chunks: Buffer[] = [];
+
+      res.write = (...args: unknown[]): boolean => {
+        try {
+          chunks.push(args[0] as Buffer);
+        } catch (err) {
+          this.logger.error(`error collecting response body chunk: ${err}`);
+          this.logger.verbose(err.stack);
+        }
+
+        return oldWrite.apply(res, args);
+      };
+
+      res.end = (...args: unknown[]) => {
+        try {
+          const chunk = args[0] as Buffer;
+
+          if (chunk) {
+            chunks.push(chunk);
+          }
+
+          responseBody = Buffer.concat(chunks).toString();
+        } catch (err) {
+          this.logger.error(`error collecting response body chunk: ${err}`);
+          this.logger.verbose(err.stack);
+        }
+
+        return oldEnd.apply(res, args);
+      };
+    } catch (err) {
+      this.logger.error(`error setting response body to be collected: ${err}`);
+      this.logger.verbose(err.stack);
+    }
 
     res.on('finish', () => {
       const message = `${res.statusCode} ${res.statusMessage} | ${req.ip} | [${method}] ${url} - ${