From 08814373e63f62b20fd1451afa7f7aa4a978eaa2 Mon Sep 17 00:00:00 2001
From: akvlad <akvlad90@gmail.com>
Date: Thu, 26 Sep 2024 14:34:36 +0300
Subject: [PATCH] fix gzip on accept-encoding

---
 lib/bun_wrapper.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/bun_wrapper.js b/lib/bun_wrapper.js
index edc82a3a..2ce2eeeb 100644
--- a/lib/bun_wrapper.js
+++ b/lib/bun_wrapper.js
@@ -1,6 +1,7 @@
 const { Transform } = require('stream')
 const log = require('./logger')
 const { EventEmitter } = require('events')
+const zlib = require('zlib')
 
 class BodyStream extends Transform {
   _transform (chunk, encoding, callback) {
@@ -121,6 +122,16 @@ const wrapper = (handler, parsers) => {
       headers['Content-Type'] = 'application/json'
       response = JSON.stringify(response)
     }
+    if (response && (ctx.headers.get('accept-encoding') || '').indexOf('gzip') !== -1) {
+      if (response.on) {
+        const _r = zlib.createGzip()
+        response.pipe(_r)
+        response = _r
+      } else {
+        response = Bun.gzipSync(response)
+      }
+      headers['Content-Encoding'] = 'gzip'
+    }
     return new Response(response, { status: status, headers: headers })
   }
   return res