Create Opencart Extension

I want an extension where i can fetch information from any site and add those on Products at Backend from URL. Like if i enter URL, that extension will fetch Price,Images,Descrption from URL and add those to Opencart Backend. Example Video:[login to view URL] in start- I want [login to view URL],[login to view URL],[login to view URL],[login to view URL],[login to view URL] [login to view URL] , [login to view URL],[login to view URL],[login to view URL] and [login to view URL] I can ask you to add more later.