From 011d485ce5214a90aa64d557d8acdc0697c8ed49 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= <biwanczuk@gmail.com>
Date: Mon, 30 Dec 2019 15:58:25 +0100
Subject: use shared HTTP client (#3563)

This commit moves HTTP client to lazy_static. Effectively HTTP client is shared by whole Deno process and will reuse connections.
---
 cli/http_util.rs | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

(limited to 'cli')

diff --git a/cli/http_util.rs b/cli/http_util.rs
index 1be9ad60f..83aaadd1e 100644
--- a/cli/http_util.rs
+++ b/cli/http_util.rs
@@ -14,20 +14,26 @@ use reqwest::Client;
 use std::future::Future;
 use url::Url;
 
-/// Create new instance of async reqwest::Client. This client supports
+lazy_static! {
+  static ref HTTP_CLIENT: Client = {
+    let mut headers = HeaderMap::new();
+    headers.insert(
+      USER_AGENT,
+      format!("Deno/{}", version::DENO).parse().unwrap(),
+    );
+    Client::builder()
+      .redirect(Policy::none())
+      .default_headers(headers)
+      .use_rustls_tls()
+      .build()
+      .unwrap()
+  };
+}
+
+/// Get instance of async reqwest::Client. This client supports
 /// proxies and doesn't follow redirects.
-pub fn get_client() -> Client {
-  let mut headers = HeaderMap::new();
-  headers.insert(
-    USER_AGENT,
-    format!("Deno/{}", version::DENO).parse().unwrap(),
-  );
-  Client::builder()
-    .redirect(Policy::none())
-    .default_headers(headers)
-    .use_rustls_tls()
-    .build()
-    .unwrap()
+pub fn get_client() -> &'static Client {
+  &HTTP_CLIENT
 }
 
 /// Construct the next uri based on base uri and location header fragment
-- 
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