Accept customer parameter for router handle

[efancier]

In the multi-thread application, if gotham can implement customer parameter for route.get("xxx").to(handle, customer parameter), it seems be helpful, here is an example of the use case:
in main, global parameter defined as
let global = Arc::new(Mutex::new(0));
let gclone1 = global.clone();
let gclone2 = global.clone();

and gclone1 pass to router as

gotham::start_with_tls(addr, router(gclone1 ), build_config()?);

in router, pass gclone1 to handle

route.post("/xxx").to( userHandle, gclone1);

then the user handle functin signature will look like this:

fn userHandle(mut state: State, gclone: std::sync::Arc<std::sync::Mutex>) -> Box{

}

[msrd0]

I don't understand your suggestion, why don't you use global.clone() in your handler, or use a middleware to inject your gclone1 into the handler?

[efancier]

msrd0, thanks for you comments. we need pass gclone1 to handle because gclone1 and global are defined in main() function, which is out of the handle functioin's scope.
use middleware is a good idea but make the design more complex

[msrd0]

I don't think we need another way to inject stuff into handlers. Unless there is a specific reason you can't use middlewares and/or global variables, I'm going to close this.