add chain

pkg/components/connector/http/metadata.go

@@ -0,0 +1,18 @@
+package http
+
+import "net/url"
+
+const (
+	userAgent = "userAgent"
+	username  = "username"
+	password  = "password"
+)
+
+const (
+	defaultUserAgent = "Chrome/78.0.3904.106"
+)
+
+type metadata struct {
+	UserAgent string
+	User      *url.Userinfo
+}