is it ok to deploy 2 applications in a single droplet?

I have two apps, api and frontend, I have uploaded in the same droplet, the frontend app is running on the port 3000 and the api is running on the 8000, my nginx config is:

{.....
	# root /var/www/html;
	root /home/testing-client/dist;

	# Add index.php to the list if you are using PHP
	index index.html index.htm index.nginx-debian.html;

	server_name _;

	location / {
		proxy_pass http://localhost:3000;
		 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;

	# First attempt to serve request as file, then
		# as directory, then fall back to displaying a 404.
		#try_files $uri $uri/ =404;
	}
....

but in my frontend app throw error to connect with api in localhost:8000