refactor(backend): extract governor setup into a function

.gitignore

@@ -24,3 +24,4 @@ node_modules/
 
 docs/
 
+logs/

backend/.sqlx/query-ac8099bc9fa42a4152f2230903f9e9b51edfc01f03fd18cc2fe0ab3a956f3175.json

@@ -0,0 +1,16 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        UPDATE file_records\n        SET thumbnail_storage_path = $1\n        WHERE id = $2\n        AND user_id = $3\n        ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Text",
+        "Int8",
+        "Int8"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "ac8099bc9fa42a4152f2230903f9e9b51edfc01f03fd18cc2fe0ab3a956f3175"
+}

backend/Cargo.lock

@@ -307,6 +307,7 @@ dependencies = [
  "tower-http",
  "tower_governor",
  "tracing",
+ "tracing-appender",
  "tracing-subscriber",
  "utoipa",
  "utoipa-swagger-ui",
@@ -577,6 +578,15 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82b8f8f868b36967f9606790d1903570de9ceaf870a7bf9fbbd3016d636a2cb2"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.6"
@@ -3588,6 +3598,12 @@ version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
+[[package]]
+name = "symlink"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7973cce6668464ea31f176d85b13c7ab3bba2cb3b77a2ed26abd7801688010a"
+
 [[package]]
 name = "syn"
 version = "2.0.117"
@@ -3900,6 +3916,19 @@ dependencies = [
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-appender"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "050686193eb999b4bb3bc2acfa891a13da00f79734704c4b8b4ef1a10b368a3c"
+dependencies = [
+ "crossbeam-channel",
+ "symlink",
+ "thiserror 2.0.18",
+ "time",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "tracing-attributes"
 version = "0.1.31"

backend/Cargo.toml

@@ -26,6 +26,7 @@ tower_governor = { version = "0.8.0", default-features = false, features = ["axu
 utoipa = { version = "5.5.0", features = ["axum_extras", "chrono"] }
 utoipa-swagger-ui = { version = "9.0.2", features = ["axum"] }
 image = "0.25.10"
+tracing-appender = "0.2.5"
 
 [dev-dependencies]
 axum-test = "20.0.0"

backend/src/main.rs

@@ -44,12 +44,20 @@ const BODY_LIMIT: usize = 1000 * 1000 * 1000 * 5;
 
 #[tokio::main]
 async fn main() -> Result<()> {
+    let file_appender = tracing_appender::rolling::daily("logs", "loft.log");
+    let (non_blocking, _guard) = tracing_appender::non_blocking(file_appender);
+
     tracing_subscriber::registry()
         .with(
             tracing_subscriber::EnvFilter::try_from_default_env().unwrap_or_else(|_| {
                 format!("{}=info,tower_http=debug", env!("CARGO_CRATE_NAME")).into()
             }),
         )
+        .with(
+            tracing_subscriber::fmt::layer()
+                .with_ansi(false)
+                .with_writer(non_blocking),
+        )
         .with(tracing_subscriber::fmt::layer())
         .init();
 
@@ -70,31 +78,12 @@ async fn main() -> Result<()> {
         .layer(DefaultBodyLimit::max(BODY_LIMIT));
 
     let user_repository = UserRepository::new(pool);
-    let mut routes_auth = routes_auth(user_repository.clone());
-
-    if std::env::var("ENVIRONMENT").unwrap_or_default() != "test" {
-        let governor_conf_auth = GovernorConfigBuilder::default()
-            .per_second(4)
-            .burst_size(2)
-            .key_extractor(SmartIpKeyExtractor)
-            .finish()
-            .expect("failed to initialize rate limiter configurations");
-        let governor_auth_limiter = governor_conf_auth.limiter().clone();
-        let interval = Duration::from_secs(60);
-
-        std::thread::spawn(move || {
-            loop {
-                std::thread::sleep(interval);
-                let len = governor_auth_limiter.len();
-                if len > 0 {
-                    info!("rate limiting auth storage size: {len}");
-                }
-                governor_auth_limiter.retain_recent();
-            }
-        });
-
-        routes_auth = routes_auth.layer(GovernorLayer::new(governor_conf_auth));
-    }
+    let routes_auth = routes_auth(user_repository.clone());
+    let routes_auth = if std::env::var("ENVIRONMENT").unwrap_or_default() == "test" {
+        routes_auth
+    } else {
+        apply_governor(routes_auth)
+    };
 
     let mut openapi = AuthApi::openapi();
     openapi.merge(FileApi::openapi());
@@ -133,3 +122,27 @@ async fn main() -> Result<()> {
 
     Ok(())
 }
+
+fn apply_governor(routes_auth: Router) -> Router {
+    let governor_conf_auth = GovernorConfigBuilder::default()
+        .per_second(4)
+        .burst_size(2)
+        .key_extractor(SmartIpKeyExtractor)
+        .finish()
+        .expect("failed to initialize rate limiter configurations");
+    let governor_auth_limiter = governor_conf_auth.limiter().clone();
+    let interval = Duration::from_secs(60);
+
+    std::thread::spawn(move || {
+        loop {
+            std::thread::sleep(interval);
+            let len = governor_auth_limiter.len();
+            if len > 0 {
+                info!("rate limiting auth storage size: {len}");
+            }
+            governor_auth_limiter.retain_recent();
+        }
+    });
+
+    routes_auth.layer(GovernorLayer::new(governor_conf_auth))
+}

backend/src/model.rs

@@ -1,6 +1,6 @@
 use axum::{body::Bytes, extract::multipart::MultipartError};
 use futures_util::{Stream, StreamExt};
-use opendal::{Operator, layers::LoggingLayer, services};
+use opendal::{FuturesBytesStream, Operator, layers::LoggingLayer, services};
 use serde::Serialize;
 use sqlx::{PgPool, prelude::FromRow};
 
@@ -80,22 +80,14 @@ impl FileRepository {
         Ok(record)
     }
 
-    pub async fn download_file(
-        &self,
-        file_id: i64,
-        user_id: i64,
-    ) -> Result<impl Stream<Item = std::io::Result<Bytes>> + use<>> {
+    pub async fn download_file(&self, file_id: i64, user_id: i64) -> Result<FuturesBytesStream> {
         let record = self.get_file(file_id, user_id).await?;
         let reader = self.op.reader(&record.storage_key).await?;
         let stream = reader.into_bytes_stream(0..).await?;
         Ok(stream)
     }
 
-    pub async fn thumbnail(
-        &self,
-        file_id: i64,
-        user_id: i64,
-    ) -> Result<impl Stream<Item = std::io::Result<Bytes>> + use<>> {
+    pub async fn thumbnail(&self, file_id: i64, user_id: i64) -> Result<FuturesBytesStream> {
         let record = self.get_file(file_id, user_id).await?;
         let path = format!("thumbnail/{}", &record.storage_key);
         let reader = self.op.reader(&path).await?;
@@ -109,7 +101,7 @@ impl FileRepository {
         user_id: i64,
         from: u64,
         to: u64,
-    ) -> Result<impl Stream<Item = std::io::Result<Bytes>> + use<>> {
+    ) -> Result<FuturesBytesStream> {
         let record = self.get_file(file_id, user_id).await?;
         let reader = self.op.reader(&record.storage_key).await?;
         let stream = reader.into_bytes_stream(from..to).await?;
@@ -435,7 +427,7 @@ mod tests {
             .await
             .unwrap();
 
-            assert_eq!(record.thumbnail_storage_path, None);
+        assert_eq!(record.thumbnail_storage_path, None);
 
         let path = "thumbnail/a.png-uuid";
         file_repository