From 5460b28fa4fa3d14e8c9a8c935cd727260c3f1a4 Mon Sep 17 00:00:00 2001
From: gpzhou <fair.zhou@qq.com>
Date: Wed, 27 May 2020 17:53:39 +0800
Subject: [PATCH 1/2] reuse http.request.Body

---
 context.go | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/context.go b/context.go
index a9458833..8992e2d4 100644
--- a/context.go
+++ b/context.go
@@ -5,6 +5,7 @@
 package gin
 
 import (
+	"bytes"
 	"errors"
 	"fmt"
 	"io"
@@ -78,6 +79,9 @@ type Context struct {
 	// SameSite allows a server to define a cookie attribute making it impossible for
 	// the browser to send this cookie along with cross-site requests.
 	sameSite http.SameSite
+
+	// rawData cache and reuse http.request.Body
+	rawData []byte
 }
 
 /************************************/
@@ -485,6 +489,10 @@ func (c *Context) initFormCache() {
 	if c.formCache == nil {
 		c.formCache = make(url.Values)
 		req := c.Request
+		if req.Body != nil {
+			c.rawData, _ = ioutil.ReadAll(req.Body)
+			req.Body = ioutil.NopCloser(bytes.NewReader(c.rawData))
+		}
 		if err := req.ParseMultipartForm(c.engine.MaxMultipartMemory); err != nil {
 			if err != http.ErrNotMultipart {
 				debugPrint("error on parse multipart form array: %v", err)
@@ -792,7 +800,8 @@ func (c *Context) GetHeader(key string) string {
 
 // GetRawData return stream data.
 func (c *Context) GetRawData() ([]byte, error) {
-	return ioutil.ReadAll(c.Request.Body)
+	// return ioutil.ReadAll(c.Request.Body)
+	return c.rawData, nil
 }
 
 // SetSameSite with cookie

From 7b5e0399987ea10085e499e51b2e1da9b7e13495 Mon Sep 17 00:00:00 2001
From: fair <fair.zhou@qq.com>
Date: Wed, 27 May 2020 19:21:50 +0800
Subject: [PATCH 2/2] add init

---
 context.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/context.go b/context.go
index 8992e2d4..619cfd21 100644
--- a/context.go
+++ b/context.go
@@ -801,6 +801,7 @@ func (c *Context) GetHeader(key string) string {
 // GetRawData return stream data.
 func (c *Context) GetRawData() ([]byte, error) {
 	// return ioutil.ReadAll(c.Request.Body)
+	c.initFormCache()
 	return c.rawData, nil
 }