From 42acf3442b67b4ff5ad601e249c55127992bcf3f Mon Sep 17 00:00:00 2001
From: Steve Coffman <steve@khanacademy.org>
Date: Wed, 25 Aug 2021 17:59:04 -0400
Subject: [PATCH] fix: Avoid clobbering body so subsequent reads like
 middleware will not get nil

Signed-off-by: Steve Coffman <steve@khanacademy.org>
---
 http2curl.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/http2curl.go b/http2curl.go
index bde4d44..74c6d99 100644
--- a/http2curl.go
+++ b/http2curl.go
@@ -3,6 +3,7 @@ package http2curl
 import (
 	"bytes"
 	"fmt"
+	"io/ioutil"
 	"net/http"
 	"sort"
 	"strings"
@@ -37,8 +38,10 @@ func GetCurlCommand(req *http.Request) (*CurlCommand, error) {
 		var buff bytes.Buffer
 		_, err := buff.ReadFrom(req.Body)
 		if err != nil {
-			return nil, fmt.Errorf("getCurlCommand: buffer read from body erorr: %w", err)
+			return nil, fmt.Errorf("getCurlCommand: buffer read from body error: %w", err)
 		}
+		// reset body for potential re-reads
+		req.Body = ioutil.NopCloser(bytes.NewBuffer(buff.Bytes()))
 		if len(buff.String()) > 0 {
 			bodyEscaped := bashEscape(buff.String())
 			command.append("-d", bodyEscaped)
@@ -60,3 +63,4 @@ func GetCurlCommand(req *http.Request) (*CurlCommand, error) {
 
 	return &command, nil
 }
+