How Connect arduino with UHF RFID Reader and Send data to my (React js node js) Server

Hello,

I moved your post to a more appropriate section (project guidance)

do yourself a favour and please read How to get the best out of this forum and modify your post accordingly (including code tags and necessary documentation for your ask).

if you don't want to do the code yourself, and need assistance for developing, consider the Jobs and Paid Consultancy forum, make sure you mention your budget and a full specification.