Add util

util/http/http.go

@@ -0,0 +1,23 @@
+package http
+
+import (
+	"net/http"
+
+	"github.com/micro/go-micro/registry"
+	"github.com/micro/go-micro/selector"
+)
+
+func NewRoundTripper(opts ...Option) http.RoundTripper {
+	options := Options{
+		Registry: registry.DefaultRegistry,
+	}
+	for _, o := range opts {
+		o(&options)
+	}
+
+	return &roundTripper{
+		rt:   http.DefaultTransport,
+		st:   selector.Random,
+		opts: options,
+	}
+}