From 58d105efaac403ce2a5fa70f4d87ba621c442585 Mon Sep 17 00:00:00 2001
From: BennyFranciscus <268274351+BennyFranciscus@users.noreply.github.com>
Date: Wed, 25 Mar 2026 18:32:14 +0000
Subject: [PATCH] fix(ktor): gzip level 1 instead of default level 6

Sets Deflater.BEST_SPEED (level 1) for gzip compression on /compression
endpoint, matching the HttpArena test requirement.

Closes #107
---
 frameworks/ktor/src/main/kotlin/com/httparena/Application.kt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/frameworks/ktor/src/main/kotlin/com/httparena/Application.kt b/frameworks/ktor/src/main/kotlin/com/httparena/Application.kt
index acf5dbf9..15001fdf 100644
--- a/frameworks/ktor/src/main/kotlin/com/httparena/Application.kt
+++ b/frameworks/ktor/src/main/kotlin/com/httparena/Application.kt
@@ -16,6 +16,7 @@ import java.io.ByteArrayOutputStream
 import java.io.File
 import java.sql.Connection
 import java.sql.DriverManager
+import java.util.zip.Deflater
 import java.util.zip.GZIPOutputStream
 
 @Serializable
@@ -140,7 +141,9 @@ object AppData {
 
     fun gzipCompress(data: ByteArray): ByteArray {
         val bos = ByteArrayOutputStream(data.size / 4)
-        GZIPOutputStream(bos).use { it.write(data) }
+        object : GZIPOutputStream(bos) {
+            init { def.setLevel(Deflater.BEST_SPEED) }
+        }.use { it.write(data) }
         return bos.toByteArray()
     }
 }