From 997fb14e79ab22a90980150f230875c41f083d89 Mon Sep 17 00:00:00 2001
From: Rob Ede <robjtede@icloud.com>
Date: Sat, 26 Feb 2022 04:50:39 +0000
Subject: [PATCH] fix note about app_data

---
 content/docs/whatis.md                    | 4 ++--
 examples/application/src/mutable_state.rs | 4 ++--
 examples/application/src/state.rs         | 3 +--
 3 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/content/docs/whatis.md b/content/docs/whatis.md
index 49b0865..b2dfe9c 100644
--- a/content/docs/whatis.md
+++ b/content/docs/whatis.md
@@ -1,10 +1,10 @@
 ---
-title: What is Actix
+title: What is Actix Web
 menu: docs_intro
 weight: 100
 ---
 
-# Actix is an Ecosystem of Crates
+# Actix Web is part of an Ecosystem of Crates
 
 Long ago, Actix Web was built on top of the `actix` actor framework. Now, Actix Web is largely unrelated to the actor framework and is built using a different system. Though `actix` is still maintained, its usefulness as a general tool is diminishing as the futures and async/await ecosystem matures. At this time, the use of `actix` is only required for WebSocket endpoints.
 
diff --git a/examples/application/src/mutable_state.rs b/examples/application/src/mutable_state.rs
index c326937..39254c6 100644
--- a/examples/application/src/mutable_state.rs
+++ b/examples/application/src/mutable_state.rs
@@ -10,13 +10,14 @@ async fn index(data: web::Data<AppStateWithCounter>) -> String {
     let mut counter = data.counter.lock().unwrap(); // <- get counter's MutexGuard
     *counter += 1; // <- access counter inside MutexGuard
 
-    format!("Request number: {}", counter) // <- response with count
+    format!("Request number: {counter}") // <- response with count
 }
 // </setup_mutable>
 
 // <make_app_mutable>
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
+    // Note: web::Data created _outside_ HttpServer::new closure
     let counter = web::Data::new(AppStateWithCounter {
         counter: Mutex::new(0),
     });
@@ -24,7 +25,6 @@ async fn main() -> std::io::Result<()> {
     HttpServer::new(move || {
         // move counter into the closure
         App::new()
-            // Note: using app_data instead of data
             .app_data(counter.clone()) // <- register the created data
             .route("/", web::get().to(index))
     })
diff --git a/examples/application/src/state.rs b/examples/application/src/state.rs
index 72c7e03..f45399b 100644
--- a/examples/application/src/state.rs
+++ b/examples/application/src/state.rs
@@ -9,8 +9,7 @@ struct AppState {
 #[get("/")]
 async fn index(data: web::Data<AppState>) -> String {
     let app_name = &data.app_name; // <- get app_name
-
-    format!("Hello {}!", app_name) // <- response with app_name
+    format!("Hello {app_name}!") // <- response with app_name
 }
 // </setup>