N/A

The app is going to have to tell you.

Usually you can either define their variable or look up their documentation to find what the default is

Can I ask what service you're asking about?

It's an axum server I wrote myself, it will obey a port variable and I know Railway sets one, I just can't reference that value in another apps config without setting it myself

Yeah. You'll have to set it. That's standard.

Also I ❤️ axum

Pretty sure 3000 is default

3000 would be default if following the axum tutorial that is true, but it states somewhere in the railway docs that railway will set a PORT variable for networking. I guess its intended for you to set it if you need the application running on a specific port

Yeah, but in order to support that your app also has to be set up for it. Here's the "correct" way to do that in Rust:

let port: u16 = std::env::var("PORT")
        .unwrap_or_else(|_| "3000".to_string()) 
        .parse()
        .expect("Failed to parse PORT");

Yeah, it does that, I am also creating an IPV6 tcpsocket

awesomesauce

you could use shared variables and expose the port variable?

https://docs.railway.com/guides/variables

Yeah, I've gone and done that now, it was just surprising to me that the automatically attached port variable is not exposed at all, only if the user explicitly set it

Doesn't need to be a shared variable

It can just be a service variable that you reference

I got it working, thanks for the input!

!s

!s