Add "updated" field to item export

cmd/server/memory.go

@@ -181,6 +181,10 @@ func mapToItem(result map[string]interface{}) microsub.Item {
 		item.Published = published.(string)
 	}
 
+	if updated, e := result["updated"]; e {
+		item.Updated = updated.(string)
+	}
+
 	return item
 }
 

microsub/protocol.go

@@ -54,6 +54,7 @@ type Item struct {
 	Type       string   `json:"type"`
 	Name       string   `json:"name,omitempty"`
 	Published  string   `json:"published"`
+	Updated    string   `json:"updated"`
 	URL        string   `json:"url"`
 	UID        string   `json:"uid"`
 	Author     Author   `json:"author"`