add ebay endpoint oauth2

ebay/ebay.go

@@ -0,0 +1,16 @@
+// Copyright 2017 The oauth2 Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package ebay provides constants for using OAuth2 to access Amazon.
+package ebay
+
+import (
+	"golang.org/x/oauth2"
+)
+
+// Endpoint is Ebay's OAuth 2.0 endpoint.
+var Endpoint = oauth2.Endpoint{
+	AuthURL:  "https://auth.ebay.com/oauth2/authorize",
+	TokenURL: "https://api.ebay.com/identity/v1/oauth2/token",
+}