From ece2c1adf2ca0201868c4e36c69a5f0d8eaf8490 Mon Sep 17 00:00:00 2001
From: Filip Tibell <filip.tibell@gmail.com>
Date: Sat, 26 Apr 2025 21:10:27 +0200
Subject: [PATCH] Preallocate incoming body

---
 crates/lune-std-net/src/shared/response.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/crates/lune-std-net/src/shared/response.rs b/crates/lune-std-net/src/shared/response.rs
index 9332479..df3a183 100644
--- a/crates/lune-std-net/src/shared/response.rs
+++ b/crates/lune-std-net/src/shared/response.rs
@@ -2,7 +2,7 @@ use futures_lite::prelude::*;
 use http_body_util::BodyStream;
 
 use hyper::{
-    body::{Bytes, Incoming},
+    body::{Body, Bytes, Incoming},
     HeaderMap, Response as HyperResponse,
 };
 
@@ -23,8 +23,10 @@ impl Response {
     ) -> LuaResult<Self> {
         let (parts, body) = incoming.into_parts();
 
+        let size = body.size_hint().lower() as usize;
+        let buffer = Vec::<u8>::with_capacity(size);
         let body = BodyStream::new(body)
-            .try_fold(Vec::<u8>::new(), |mut body, chunk| {
+            .try_fold(buffer, |mut body, chunk| {
                 if let Some(chunk) = chunk.data_ref() {
                     body.extend_from_slice(chunk);
                 }