add reload for web api

handler/api/metadata.go

@@ -0,0 +1,17 @@
+package api
+
+import (
+	mdata "github.com/go-gost/core/metadata"
+	mdutil "github.com/go-gost/x/metadata/util"
+)
+
+type metadata struct {
+	accesslog  bool
+	pathPrefix string
+}
+
+func (h *apiHandler) parseMetadata(md mdata.Metadata) (err error) {
+	h.md.accesslog = mdutil.GetBool(md, "api.accessLog", "accessLog")
+	h.md.pathPrefix = mdutil.GetString(md, "api.pathPrefix", "pathPrefix")
+	return
+}