From 895f422346578c34111ee9f7feafda7dee914473 Mon Sep 17 00:00:00 2001
From: maidol <kingmaidol@163.com>
Date: Sat, 20 Jan 2018 13:10:45 +0800
Subject: [PATCH] add request header binder

---
 binding.go | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/binding.go b/binding.go
index 21d14a2..057ab9f 100644
--- a/binding.go
+++ b/binding.go
@@ -96,6 +96,23 @@ func defaultURLBinder(req *http.Request, userStruct FieldMapper) Errors {
 	return bindForm(req, userStruct, req.URL.Query(), nil)
 }
 
+// Header reads data out of the header into a struct you provide.
+// This function invokes data validation after deserialization.
+func Header(req *http.Request, userStruct FieldMapper) error {
+	err := headerBinder(req, userStruct)
+	if len(err) > 0 {
+		return err
+	}
+	return nil
+
+}
+
+var headerBinder requestBinder = defaultHeaderBinder
+
+func defaultHeaderBinder(req *http.Request, userStruct FieldMapper) Errors {
+	return bindForm(req, userStruct, req.Header, nil)
+}
+
 // MultipartForm reads a multipart form request and deserializes its data and
 // files into a struct you provide. Files should be deserialized into
 // *multipart.FileHeader fields.