Proxyman is an easy-to-use tool for setting up a quick reverse proxy in local deployments.
In many modern applications, the API server and the UI server live on separate ports. In production, they would typically run together through Nginx. If you want to run it during deployment, however, you would need to perform all sorts of CORS workarounds along with handle cross-site cookies and what not. Wouldn't it be easier to have a quick and dirty reverse proxy setup that is as easy as running one command?
Proxyman is just that. It allows you to define a quick development reverse proxy. Here are some examples. In all of these, the proxy server itself is running on port 5000 as the first arg passed.
Example 1: Map all requests to / to localhost:8000 and all requests to /ui to localhost:5173.
proxyman 5000 /:8000 /ui:5173
Example 2: Map all requests to / to localhost:8000 but fall back to localhost:8001 if it returns a 404.
proxyman 5000 /:8000:8001
And that's pretty much it. You can use any combination of reverse proxies to run over localhost using this simple process.