Reuse fasthttp client

proxy.go

@@ -2,12 +2,29 @@ package main
 
 import (
 	"crypto/tls"
+	"time"
 
 	fiber "github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/middleware/proxy"
 	libpack_monitoring "github.com/lukaszraczylo/graphql-monitoring-proxy/monitoring"
+	"github.com/valyala/fasthttp"
 )
 
+func createFasthttpClient() *fasthttp.Client {
+	return &fasthttp.Client{
+		Name:                     "graphql_proxy",
+		NoDefaultUserAgentHeader: true,
+		TLSConfig: &tls.Config{
+			InsecureSkipVerify: true,
+		},
+		MaxConnsPerHost:               100,
+		MaxIdleConnDuration:           2 * time.Minute,
+		ReadTimeout:                   time.Second * 10,
+		WriteTimeout:                  time.Second * 10,
+		DisableHeaderNamesNormalizing: true,
+	}
+}
+
 func proxyTheRequest(c *fiber.Ctx) error {
 	if !checkAllowedURLs(c) {
 		cfg.Logger.Error("Request blocked", map[string]interface{}{"path": c.Path()})
@@ -19,9 +36,7 @@ func proxyTheRequest(c *fiber.Ctx) error {
 	c.Request().Header.Add("X-Real-IP", c.IP())
 	c.Request().Header.Add(fiber.HeaderXForwardedFor, string(c.Request().Header.Peek("X-Forwarded-For")))
 
-	proxy.WithTlsConfig(&tls.Config{
-		InsecureSkipVerify: true,
-	})
+	proxy.WithClient(cfg.Client.FastProxyClient)
 
 	err := proxy.DoRedirects(c, cfg.Server.HostGraphQL+c.Path(), 3)
 	if err != nil {