Can I integrate OwnCloud UI to my website



I am creating a website which should have the cloud functionality. I choose OwnCloud and installed on my local server. I am creating the website in ReactJS. I have got a node package supporting OwnCloud functionalities. Please find the link below

How can I login to the OwnCloud interface integrated into my website? I didn’t try yet. Also, Is there any UI component or library to integrate the UI into my website.

Could you please suggest me the ideal way to integrate OC to my website without a seperate login for OC interface?