Salvo Logging and Tracing

[dependencies]
salvo = { version = "0.89.3", features = ["logging"] }
tracing = "0.1"
tracing-subscriber = { version = "0.3", features = ["env-filter"] }

Logger middleware

salvo::logging::Logger emits a tracing span per request with remote_addr, version, method, path, and response status + duration. It must be installed on a Service (not a Router) so it wraps the catcher and sees the final status:

use salvo::logging::Logger;
use salvo::prelude::*;