Registering public domain to reactJS ip:3000 port

I have my EC2 instance running. I have port 3000 open in my security rules and can reach my running ReactJs application on {myIp}:3000 I have purchased a domain from godaddy. how do i get www.mydomain.com to specifically hit {myIp}:3000 .... on my godaddy domain registration it only allows for a public ip address and not a specific port???