Multi-droplet architecture same domain

Maybe this is not the best (right?) approach, but I’m investigating the following setup and wondering if this is possible with Digital Ocean Droplets:

Imagine a base domain: foo.com

Now I want to be able to support multiple apps like this:

foo.com/blog (Wordpress, probably on its own Droplet) foo.com/app (probably Node or something, on its own Droplet) foo.com/app/v1 (probably Node or something, on its own Droplet) foo.com/app/v2 (probably Node or something, on its own Droplet)

The basic question here is can I setup different droplets for these different paths and do the routing/redirection from the main entry droplet running foo.com?

The alternative approach is to do something like this:

foo.com (Droplet 1) blog.foo.com (Droplet 2 - Wordpress) app.foo.com v1.app.foo.com (Droplet 3 - Node) v2.app.foo.com (Droplet 4 - Node)

Anyone done anything like this? Any thoughts on it?