diff --git a/util/fetch/fetch.go b/util/fetch/fetch.go
index 32b6fde..a76d5fc 100644
--- a/util/fetch/fetch.go
+++ b/util/fetch/fetch.go
@@ -7,6 +7,7 @@ import (
 	"encoding/json"
 	"encoding/xml"
 	"fmt"
+	"git.nspix.com/golang/kos/util/env"
 	"io"
 	"net"
 	"net/http"
@@ -18,7 +19,7 @@ import (
 
 var (
 	httpClient = http.Client{
-		Timeout: time.Second * 15,
+		Timeout: time.Second * 30,
 		Transport: &http.Transport{
 			Proxy: http.ProxyFromEnvironment,
 			TLSClientConfig: &tls.Config{
@@ -29,7 +30,7 @@ var (
 				KeepAlive: 30 * time.Second,
 			}).DialContext,
 			ForceAttemptHTTP2:     false,
-			MaxIdleConns:          10,
+			MaxIdleConns:          48,
 			IdleConnTimeout:       30 * time.Second,
 			TLSHandshakeTimeout:   10 * time.Second,
 			ExpectContinueTimeout: 1 * time.Second,
@@ -37,6 +38,15 @@ var (
 	}
 )
 
+func init() {
+	httpDefaultTimeout := env.Get("HTTP_CLIENT_TIMEOUT", "30s")
+	if httpDefaultTimeout != "" {
+		if duration, err := time.ParseDuration(httpDefaultTimeout); err == nil {
+			httpClient.Timeout = duration
+		}
+	}
+}
+
 func encode(data any) (r io.Reader, contentType string, err error) {
 	var (
 		buf []byte
@@ -127,7 +137,12 @@ func Post(ctx context.Context, urlString string, cbs ...Option) (res *http.Respo
 	return do(ctx, req, opts)
 }
 
-func Request(ctx context.Context, urlString string, response any, cbs ...Option) (err error) {
+func Echo(ctx context.Context, method, uri string, response any, cbs ...Option) (err error) {
+	cbs = append(cbs, WithMethod(method))
+	return Request(ctx, uri, response, cbs...)
+}
+
+func Request(ctx context.Context, u string, response any, cbs ...Option) (err error) {
 	var (
 		buf         []byte
 		uri         *url.URL
@@ -140,7 +155,7 @@ func Request(ctx context.Context, urlString string, response any, cbs ...Option)
 	for _, cb := range cbs {
 		cb(opts)
 	}
-	if uri, err = url.Parse(urlString); err != nil {
+	if uri, err = url.Parse(u); err != nil {
 		return
 	}
 	if opts.Params != nil {
@@ -180,6 +195,10 @@ func Request(ctx context.Context, urlString string, response any, cbs ...Option)
 		}
 		return
 	}
+	//don't care response
+	if response == nil {
+		return
+	}
 	contentType = strings.ToLower(res.Header.Get("Content-Type"))
 	extName := path.Ext(req.URL.String())
 	if strings.Contains(contentType, JSON) || extName == ".json" {