fixup

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

http.go

@@ -2,7 +2,7 @@ package http
 
 import (
 	"bytes"
-	"io/ioutil"
+	"io"
 	"net/http"
 
 	"storj.io/drpc"
@@ -16,6 +16,7 @@ type httpTransport struct {
 	endpoint string
 	ct       string
 	closed   bool
+	body     io.ReadCloser
 }
 
 func NewTransport(c *http.Client, endpoint, method, ct string) *httpTransport {
@@ -26,33 +27,30 @@ func NewTransport(c *http.Client, endpoint, method, ct string) *httpTransport {
 }
 
 func (t *httpTransport) Read(buf []byte) (int, error) {
-	req, err := http.NewRequest(t.method, t.endpoint, nil)
-	if err != nil {
-		return 0, err
-	}
-	req.Header.Add("Content-Type", t.ct)
-	rsp, err := t.c.Do(req)
-	if err != nil {
-		return 0, err
-	}
-	buf, err = ioutil.ReadAll(rsp.Body)
-	return len(buf), err
+	return t.body.Read(buf)
 }
 
-func (t *httpTransport) Write(buf []byte) (int, error) {
-	req, err := http.NewRequest(t.method, t.endpoint, bytes.NewReader(buf))
+func (t *httpTransport) Write(buf []byte) (n int, err error) {
+	var req *http.Request
+	var rsp *http.Response
+
+	req, err = http.NewRequest(t.method, t.endpoint, bytes.NewReader(buf))
 	if err != nil {
-		return 0, err
+		return n, err
 	}
 	req.Header.Add("Content-Type", t.ct)
-	_, err = t.c.Do(req)
+	rsp, err = t.c.Do(req)
 	if err != nil {
-		return 0, err
+		return n, err
 	}
+
+	t.body = rsp.Body
 	return len(buf), err
 }
 
 func (t *httpTransport) Close() error {
-	t.closed = true
+	if t.body == nil {
 		return nil
 	}
+	return t.body.Close()
+}