Make logs messages more idiomatic

Author: dumindu

content/en/docs/_overview.md

@@ -9,7 +9,7 @@ aliases:
 
 > [!assignment] Dumindu Madunuwan
 [![buymeacoffee](https://img.shields.io/badge/Buy%20me%20a%20coffee-dumindu-FFDD00?style=for-the-badge&logo=buymeacoffee&logoColor=333333&labelColor=f9f9f9)](https://www.buymeacoffee.com/dumindu)
-[![hireme](https://img.shields.io/badge/Seeking%20On%20site%20Roles-%5BVisa%20Sponsorship%20Required%5D-FFDD00?style=for-the-badge&logo=readdotcv&logoColor=333333&labelColor=f9f9f9)](https://github.com/dumindu/dumindu/blob/master/Dumindu%20Madunuwan.pdf)
+[![hireme](https://img.shields.io/badge/Open%20to%20work-%5BVisa%20Sponsorship%20Required%5D-FFDD00?style=for-the-badge&logo=readdotcv&logoColor=333333&labelColor=f9f9f9)](https://github.com/dumindu/dumindu/blob/master/Dumindu%20Madunuwan.pdf)
 >
 > Global Technical Expertise : Over 12 years of backend experience spanning Singapore, Vietnam, and Remote(Short-term).
 > 

content/en/labs/a1.building-a-containerized-restful-api.md

@@ -140,5 +140,5 @@ rest_api_workspace
 
 | Environment    | Rust Image Type                    | Rust Image Size | Postgres Image Type | Postgres Image Size |
 |----------------|------------------------------------|-----------------|---------------------|---------------------|
-| Development    | rust:1.97-slim                     | ~ 900 MB        | postgres:18-alpine  | ~ 300MB             |
-| Production     | distroless/static-debian13:nonroot | ~ 15 MB         |                     |                     |
+| Development    | rust:1.100-slim                     | ~ 1200 MB        | postgres:18-alpine  | ~ 420MB             |
+| Production     | distroless/static-debian13:nonroot | ~ 24 MB         |                     |                     |

content/en/labs/a2.initialize-the-server.md

@@ -215,7 +215,13 @@ async fn main() -> anyhow::Result<()> {
 
     tracing_subscriber::registry()
         .with(filter)
-        .with(tracing_subscriber::fmt::layer().json().with_target(false).with_current_span(false))
+        .with(
+            tracing_subscriber::fmt::layer()
+                .json()
+                .flatten_event(true)
+                .with_target(false)
+                .with_current_span(false),
+        )
         .init();
 
     let addr = String::from("0.0.0.0:3000");

content/en/labs/a3.configuration-and-middleware.md

@@ -164,20 +164,19 @@ pub fn init(state: AppState) -> Router {
                         .unwrap_or("unknown");
 
                     info_span!(
-                        "http_request",
-                        method = ?request.method(),
-                        uri_path = request.uri().path(),
-                        request_id,
+                        "http request",
+                        method = %request.method(),
+                        path = request.uri().path(),
+                        request_id = request_id,
                         status_code = tracing::field::Empty,
                         latency = tracing::field::Empty
                     )
                 })
                 .on_response(|response: &Response<_>, latency: Duration, span: &Span| {
-                    span.record("status_code", tracing::field::display(response.status()));
+                    span.record("status_code", response.status().as_u16());
                     span.record("latency", latency.as_millis());
-
                     span.in_scope(|| {
-                        info!("request completed");
+                        info!("http request completed");
                     });
                 }),
         )
@@ -238,7 +237,13 @@ async fn main() -> anyhow::Result<()> {
 
     tracing_subscriber::registry()
         .with(filter)
-        .with(tracing_subscriber::fmt::layer().json().with_target(false).with_current_span(false))
+        .with(
+            tracing_subscriber::fmt::layer()
+                .json()
+                .flatten_event(true)
+                .with_target(false)
+                .with_current_span(false),
+        )
         .init();
 
     let conf = AppConf::init();

content/en/labs/a5.routes-and-error-responses.md

@@ -142,7 +142,13 @@ async fn main() -> anyhow::Result<()> {
 
     tracing_subscriber::registry()
         .with(filter)
-        .with(tracing_subscriber::fmt::layer().json().with_target(false).with_current_span(false))
+        .with(
+            tracing_subscriber::fmt::layer()
+                .json()
+                .flatten_event(true)
+                .with_target(false)
+                .with_current_span(false),
+        )
         .init();
 
     let conf = AppConf::init();
@@ -208,8 +214,8 @@ use crate::{errors::Error, models::Book, state::AppState};
 pub async fn list(State(mut state): State<AppState>) -> Result<impl IntoResponse, Error> {
     let (limit, offset) = (10, 0);
     let books =
-        Book::all().limit(limit).offset(offset).exec(&mut state.db).await.map_err(|err| {
-            error!(target: "database", "failed to fetch: {err:?}");
+        Book::all().limit(limit).offset(offset).exec(&mut state.db).await.map_err(|error| {
+            error!(target: "db", %error, "db fetch failed");
             Error::DbFetch
         })?;
     Ok((StatusCode::OK, Json(books)))
@@ -228,8 +234,8 @@ pub async fn create(
     })
     .exec(&mut state.db)
     .await
-    .map_err(|err| {
-        error!(target: "database", "failed to insert: {err:?}");
+    .map_err(|error| {
+        error!(target: "db", %error, "db insert failed");
         Error::DbInsert
     })?;
 
@@ -242,11 +248,11 @@ pub async fn read(
     State(mut state): State<AppState>,
     Path(id): Path<Uuid>,
 ) -> Result<impl IntoResponse, Error> {
-    let book = Book::get_by_id(&mut state.db, &id).await.map_err(|err| {
-        if err.is_record_not_found() {
+    let book = Book::get_by_id(&mut state.db, &id).await.map_err(|error| {
+        if error.is_record_not_found() {
             Error::NotFound
         } else {
-            error!(target: "database", "failed to fetch: {err:?}");
+            error!(target: "db", %error, "db fetch failed");
             Error::DbFetch
         }
     })?;
@@ -259,11 +265,11 @@ pub async fn update(
     Path(id): Path<Uuid>,
     Json(payload): Json<BookRequest>,
 ) -> Result<impl IntoResponse, Error> {
-    let mut book = Book::get_by_id(&mut state.db, &id).await.map_err(|err| {
-        if err.is_record_not_found() {
+    let mut book = Book::get_by_id(&mut state.db, &id).await.map_err(|error| {
+        if error.is_record_not_found() {
             Error::NotFound
         } else {
-            error!(target: "database", "failed to fetch: {err:?}");
+            error!(target: "db", %error, "db fetch failed");
             Error::DbFetch
         }
     })?;
@@ -277,8 +283,8 @@ pub async fn update(
     })
     .exec(&mut state.db)
     .await
-    .map_err(|err| {
-        error!(target: "database", "failed to update: {err:?}");
+    .map_err(|error| {
+        error!(target: "db", %error, "db update failed");
         Error::DbUpdate
     })?;
 
@@ -291,8 +297,8 @@ pub async fn delete(
     State(mut state): State<AppState>,
     Path(id): Path<Uuid>,
 ) -> Result<impl IntoResponse, Error> {
-    Book::delete_by_id(&mut state.db, id).await.map_err(|err| {
-        error!(target: "database", "failed to delete: {err:?}");
+    Book::delete_by_id(&mut state.db, id).await.map_err(|error| {
+        error!(target: "db", %error, "db delete failed");
         Error::DbDelete
     })?;
 
@@ -412,8 +418,8 @@ pub async fn list(
 ) -> Result<impl IntoResponse, Error> {
     let (limit, offset) = pagination.limit_offset();
     let books =
-        Book::all().limit(limit).offset(offset).exec(&mut state.db).await.map_err(|err| {
-            error!(target: "database", "failed to fetch: {err:?}");
+        Book::all().limit(limit).offset(offset).exec(&mut state.db).await.map_err(|error| {
+            error!(target: "db", %error, "db fetch failed");
             Error::DbFetch
         })?;
     Ok((StatusCode::OK, Json(books)))

content/en/labs/a8.whats-next.md

@@ -13,7 +13,7 @@ slug: whats-next
 Add a new file `book_service/Dockerfile`.
 
 ```dockerfile
-FROM rust:1.97-slim
+FROM rust:1.100-slim
 WORKDIR /build/crates/book_service
 
 ENV CARGO_TARGET_DIR=/build/target
@@ -88,7 +88,7 @@ panic = "abort"
 Add a new file `book_service/prod.Dockerfile`.
 
 ```dockerfile
-FROM rust:1.97-slim AS builder
+FROM rust:1.100-slim AS builder
 
 ARG CARGO_BUILD_TARGET=aarch64-unknown-linux-musl
 

docs/docs/index.xml

@@ -659,7 +659,7 @@ However, it’s good practice to specify the type on variables when usin
 	</div>
 	<div class="alert-body">
 		<p><a href="https://www.buymeacoffee.com/dumindu" target="_blank" ><img src="https://img.shields.io/badge/Buy%20me%20a%20coffee-dumindu-FFDD00?style=for-the-badge&logo=buymeacoffee&logoColor=333333&labelColor=f9f9f9" alt="buymeacoffee"></a>
-<a href="https://github.com/dumindu/dumindu/blob/master/Dumindu%20Madunuwan.pdf" target="_blank" ><img src="https://img.shields.io/badge/Seeking%20On%20site%20Roles-%5BVisa%20Sponsorship%20Required%5D-FFDD00?style=for-the-badge&logo=readdotcv&logoColor=333333&labelColor=f9f9f9" alt="hireme"></a></p>
+<a href="https://github.com/dumindu/dumindu/blob/master/Dumindu%20Madunuwan.pdf" target="_blank" ><img src="https://img.shields.io/badge/Open%20to%20work-%5BVisa%20Sponsorship%20Required%5D-FFDD00?style=for-the-badge&logo=readdotcv&logoColor=333333&labelColor=f9f9f9" alt="hireme"></a></p>
 &lt;p&gt;Global Technical Expertise : Over 12 years of backend experience spanning Singapore, Vietnam, and Remote(Short-term).&lt;/p&gt;</description></item><item><title>Ownership</title><link>https://learning-rust.github.io/docs/ownership/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://learning-rust.github.io/docs/ownership/</guid><description>&lt;p&gt;We discussed in the &lt;a href="https://learning-rust.github.io/docs/traits/#derive-traits" &gt;Derive Traits&lt;/a&gt;, the usage of &lt;a href="https://doc.rust-lang.org/std/marker/trait.Copy.html" target="_blank" &gt;&lt;code&gt;Copy&lt;/code&gt; marker trait&lt;/a&gt; and &lt;a href="https://doc.rust-lang.org/std/clone/index.html" target="_blank" &gt;&lt;code&gt;.clone()&lt;/code&gt;&lt;/a&gt; with the below code.&lt;/p&gt;
 
 

docs/index.html

@@ -1,4 +1,4 @@
-<!doctype html><html lang=en-US><head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1"><meta name=description content="Rust Programming Language Tutorials for Everyone!"><meta name=author content="Dumindu Madunuwan"><meta name=theme-color content="#ffffff" media="(prefers-color-scheme: light)"><meta name=theme-color content="#101010" media="(prefers-color-scheme: dark)"><title>Learning Rust · Rust Programming Language Tutorials for Everyone!</title><link rel=canonical href=https://learning-rust.github.io/><link rel=stylesheet href=/assets/css/home.min.09796058e7b09445ee42bb44f2c65960746570b604443e89dd4479f2976419a6.css integrity><link href=https://learning-rust.github.io/pagefind/pagefind-component-ui.css rel=stylesheet><link rel=manifest href=/manifest.json><link rel=icon href=/favicon/favicon.ico><link rel=icon href=/favicon/favicon-16x16.png sizes=16x16 type=image/png><link rel=icon href=/favicon/favicon-32x32.png sizes=32x32 type=image/png><link rel=apple-touch-icon href=/favicon/apple-touch-icon.png sizes=180x180><script defer src=https://cloud.umami.is/script.js data-website-id=bdae094e-f156-4bf5-92d5-41e1809afd94></script><meta property="og:title" content="Learning Rust"><meta property="og:description" content="Learning Rust - Rust Programming Language Tutorials for Everyone!"><meta property="og:type" content="article"><meta property="og:url" content="https://learning-rust.github.io/"><meta property="og:image" content="https://learning-rust.github.io/og.jpg"><meta property="og:site_name" content="Learning Rust"><meta name=twitter:card content="summary_large_image"><meta name=twitter:title content="Learning Rust"><meta name=twitter:description content="Learning Rust - Rust Programming Language Tutorials for Everyone!"><meta name=twitter:image content="https://learning-rust.github.io/og.jpg"><script type=application/ld+json>{"@context":"https://schema.org","@type":"Article","headline":"Learning Rust","description":"Learning Rust - Rust Programming Language Tutorials for Everyone!","image":"https:\/\/learning-rust.github.io\/og.jpg","author":{"@type":"Person","name":"Dumindu Madunuwan","url":"https:\/\/github.com\/dumindu"},"publisher":{"@type":"Organization","name":"Learning Rust","logo":{"@type":"ImageObject","url":"https:\/\/learning-rust.github.io\/"}},"dateModified":"2026-11-01T23:40:30Z","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/learning-rust.github.io\/"}}</script></head><body><div id=content-wrapper><header id=site-header><div id=site-header-logo><a href=https://learning-rust.github.io/><img height=52px src=https://learning-rust.github.io/logo.svg alt="Site Logo"></a></div><div id=site-header-actions><div id=search-box><pagefind-modal-trigger compact=true></pagefind-modal-trigger><pagefind-modal></pagefind-modal></div><div id=theme-dropdown class=dropdown><button class=dropdown-btn aria-haspopup=menu aria-label="Select the theme">
+<!doctype html><html lang=en-US><head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1"><meta name=description content="Rust Programming Language Tutorials for Everyone!"><meta name=author content="Dumindu Madunuwan"><meta name=theme-color content="#ffffff" media="(prefers-color-scheme: light)"><meta name=theme-color content="#101010" media="(prefers-color-scheme: dark)"><title>Learning Rust · Rust Programming Language Tutorials for Everyone!</title><link rel=canonical href=https://learning-rust.github.io/><link rel=stylesheet href=/assets/css/home.min.09796058e7b09445ee42bb44f2c65960746570b604443e89dd4479f2976419a6.css integrity><link href=https://learning-rust.github.io/pagefind/pagefind-component-ui.css rel=stylesheet><link rel=manifest href=/manifest.json><link rel=icon href=/favicon/favicon.ico><link rel=icon href=/favicon/favicon-16x16.png sizes=16x16 type=image/png><link rel=icon href=/favicon/favicon-32x32.png sizes=32x32 type=image/png><link rel=apple-touch-icon href=/favicon/apple-touch-icon.png sizes=180x180><script defer src=https://cloud.umami.is/script.js data-website-id=bdae094e-f156-4bf5-92d5-41e1809afd94></script><meta property="og:title" content="Learning Rust"><meta property="og:description" content="Learning Rust - Rust Programming Language Tutorials for Everyone!"><meta property="og:type" content="article"><meta property="og:url" content="https://learning-rust.github.io/"><meta property="og:image" content="https://learning-rust.github.io/og.jpg"><meta property="og:site_name" content="Learning Rust"><meta name=twitter:card content="summary_large_image"><meta name=twitter:title content="Learning Rust"><meta name=twitter:description content="Learning Rust - Rust Programming Language Tutorials for Everyone!"><meta name=twitter:image content="https://learning-rust.github.io/og.jpg"><script type=application/ld+json>{"@context":"https://schema.org","@type":"Article","headline":"Learning Rust","description":"Learning Rust - Rust Programming Language Tutorials for Everyone!","image":"https:\/\/learning-rust.github.io\/og.jpg","author":{"@type":"Person","name":"Dumindu Madunuwan","url":"https:\/\/github.com\/dumindu"},"publisher":{"@type":"Organization","name":"Learning Rust","logo":{"@type":"ImageObject","url":"https:\/\/learning-rust.github.io\/"}},"dateModified":"2026-11-15T17:10:57Z","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/learning-rust.github.io\/"}}</script></head><body><div id=content-wrapper><header id=site-header><div id=site-header-logo><a href=https://learning-rust.github.io/><img height=52px src=https://learning-rust.github.io/logo.svg alt="Site Logo"></a></div><div id=site-header-actions><div id=search-box><pagefind-modal-trigger compact=true></pagefind-modal-trigger><pagefind-modal></pagefind-modal></div><div id=theme-dropdown class=dropdown><button class=dropdown-btn aria-haspopup=menu aria-label="Select the theme">
 <span><svg class="icon" height="20" viewBox="0 -960 960 960" width="20"><path d="M480-96q-79 0-149-30t-122.5-82.5T126-331 96-480q0-80 30.5-149.5t84-122 125-82.5T488-864q78 0 146.5 27T754-763t80.5 110T864-518q0 96-67 163t-163 67h-68q-8 0-14 5t-6 13q0 15 15 25t15 53q0 37-27 66.5T480-96zm0-384zm-173.5 18.5Q324-479 324-504t-17.5-42.5T264-564t-42.5 17.5T204-504t17.5 42.5T264-444t42.5-17.5zm120-144Q444-623 444-648t-17.5-42.5T384-708t-42.5 17.5T324-648t17.5 42.5T384-588t42.5-17.5zm192 0Q636-623 636-648t-17.5-42.5T576-708t-42.5 17.5T516-648t17.5 42.5T576-588t42.5-17.5zm120 144Q756-479 756-504t-17.5-42.5T696-564t-42.5 17.5T636-504t17.5 42.5T696-444t42.5-17.5zM480-168q11 0 17.5-8.5T504-192q0-16-15-28t-15-50 26.5-64 64.5-26h69q66 0 112-46t46-112q0-115-88.5-194.5T488-792q-134 0-227 91t-93 221 91 221 221 91z"/></svg>
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docs/index.xml

@@ -881,7 +881,7 @@ However, it’s good practice to specify the type on variables when usin
 	</div>
 	<div class="alert-body">
 		<p><a href="https://www.buymeacoffee.com/dumindu" target="_blank" ><img src="https://img.shields.io/badge/Buy%20me%20a%20coffee-dumindu-FFDD00?style=for-the-badge&logo=buymeacoffee&logoColor=333333&labelColor=f9f9f9" alt="buymeacoffee"></a>
-<a href="https://github.com/dumindu/dumindu/blob/master/Dumindu%20Madunuwan.pdf" target="_blank" ><img src="https://img.shields.io/badge/Seeking%20On%20site%20Roles-%5BVisa%20Sponsorship%20Required%5D-FFDD00?style=for-the-badge&logo=readdotcv&logoColor=333333&labelColor=f9f9f9" alt="hireme"></a></p>
+<a href="https://github.com/dumindu/dumindu/blob/master/Dumindu%20Madunuwan.pdf" target="_blank" ><img src="https://img.shields.io/badge/Open%20to%20work-%5BVisa%20Sponsorship%20Required%5D-FFDD00?style=for-the-badge&logo=readdotcv&logoColor=333333&labelColor=f9f9f9" alt="hireme"></a></p>
 &lt;p&gt;Global Technical Expertise : Over 12 years of backend experience spanning Singapore, Vietnam, and Remote(Short-term).&lt;/p&gt;</description></item><item><title>Overview</title><link>https://learning-rust.github.io/labs/overview/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://learning-rust.github.io/labs/overview/</guid><description>&lt;div class="alert alert-assignment"&gt;
 	&lt;div class="alert-header"&gt;