server {
    server_name my_app.ai;

    location / {

        proxy_pass http://localhost:3001;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;

        root /var/www/html/my_app/frontend/build;

    }

    listen 443 ssl; 
    ssl_certificate /etc/letsencrypt/live/my_app.ai/fullchain.pem; 
    ssl_certificate_key /etc/letsencrypt/live/my_app.ai/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}

server {
    if ($host = my_app.ai) {
        return 301 https://$host$request_uri;
    } # managed by Certbot

   listen 80; 
   server_name my_app.ai;
   return 404; # managed by Certbot
}