refactor(whirl_api): migrate to Axum

The Tokio group recently released a new web-framework called Axum, and being that almost every
aspect of Whirl harnesses Tokio's pre-existing libraries; I think it's more fitting to migrate the
web-server over to a Tokio-based one as well!

1 files changed, 19 insertions, 15 deletions

diff --git a/crates/whirl_api/src/routes/stats/mod.rs b/crates/whirl_api/src/routes/stats/mod.rs
index 5ec5eee..595b441 100644
--- a/crates/whirl_api/src/routes/stats/mod.rs
+++ b/crates/whirl_api/src/routes/stats/mod.rs
@@ -5,7 +5,7 @@ pub mod structures;
 
 use std::convert::TryFrom;
 
-use actix_web::HttpResponse;
+use axum::response;
 use num_traits::cast::AsPrimitive;
 use sysinfo::{get_current_pid, ProcessExt, System, SystemExt};
 
@@ -13,23 +13,27 @@ use crate::routes::stats::structures::{Statistics, StatisticsProcess, Statistics
 
 // This is mostly for developmental testing, it consumes more CPU than it's
 // worth.
-pub fn statistics() -> HttpResponse {
+#[allow(clippy::unused_async)]
+pub async fn statistics() -> impl response::IntoResponse {
   let mut sys = System::new_all();
   sys.refresh_all();
 
   let process = sys.process(get_current_pid().unwrap()).unwrap();
 
-  HttpResponse::Ok().json(Statistics {
-    system:  StatisticsSystem {
-      os_type: sys.name().unwrap(),
-      release: sys.kernel_version().unwrap(),
-      uptime:  whirl_common::system::unixts_to_hrtime(usize::try_from(sys.uptime()).unwrap()),
-    },
-    process: StatisticsProcess {
-      // (process.cpu_usage() * 100.0).round() / 100.0
-      memory_usage: (process.memory() / 1000).to_string(),
-      cpu_usage:    (process.cpu_usage() / sys.processors().len().as_(): f32).to_string(),
-      // uptime: seconds_to_hrtime((sys.get_uptime() - process.start_time()) as usize),
-    },
-  })
+  (
+    hyper::StatusCode::OK,
+    response::Json(Statistics {
+      system:  StatisticsSystem {
+        os_type: sys.name().unwrap(),
+        release: sys.kernel_version().unwrap(),
+        uptime:  whirl_common::system::unixts_to_hrtime(usize::try_from(sys.uptime()).unwrap()),
+      },
+      process: StatisticsProcess {
+        // (process.cpu_usage() * 100.0).round() / 100.0
+        memory_usage: (process.memory() / 1000).to_string(),
+        cpu_usage:    (process.cpu_usage() / sys.processors().len().as_(): f32).to_string(),
+        // uptime: seconds_to_hrtime((sys.get_uptime() - process.start_time()) as usize),
+      },
+    }),
+  )
 }