Welcome to to this little test. here are the 4 scenarios:

Why not just call the DO rpc directly? because locally thats not as easy. you can run multiple workers in 1 wrangler session BUT here we mix vite and wrangler which makes this not possible afaik

In these scenarios im calling an RPC method on a worker. That worker just calls a DO rpc method.

in this scenario we get the DO stub from the worker and call the do rpc method on it