feat(examples): maud template (#107)

examples/templates/maud/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "template-maud"
+version = "0.1.0"
+edition.workspace = true
+publish = false
+
+[dependencies]
+viz.workspace = true
+
+tokio = { workspace = true, features = [ "rt-multi-thread", "macros" ] }
+maud = "0.25"

examples/templates/maud/src/main.rs

@@ -0,0 +1,67 @@
+#![deny(warnings)]
+#![allow(clippy::unused_async)]
+#![allow(clippy::must_use_candidate)]
+#![allow(clippy::inherent_to_string_shadow_display)]
+
+use maud::{html, PreEscaped, DOCTYPE};
+use std::{net::SocketAddr, sync::Arc};
+use tokio::net::TcpListener;
+use viz::{serve, Request, Response, ResponseExt, Result, Router, Tree};
+
+pub struct Todo<'a> {
+    id: u64,
+    content: &'a str,
+}
+
+async fn index(_: Request) -> Result<Response> {
+    let items = vec![
+        Todo {
+            id: 1,
+            content: "Learn Rust",
+        },
+        Todo {
+            id: 2,
+            content: "Learn English",
+        },
+    ];
+
+    let buf = html! {
+        (DOCTYPE)
+        head {
+            title { "Todos" }
+        }
+        body {
+            table {
+                tr { th { "ID" } th { "Content" } }
+                @for item in &items {
+                    tr {
+                        td { (item.id) }
+                        td { (PreEscaped(item.content.to_string())) }
+                    }
+                }
+            }
+        }
+    };
+
+    Ok(Response::html(buf.into_string()))
+}
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
+    let listener = TcpListener::bind(addr).await?;
+    println!("listening on http://{addr}");
+
+    let app = Router::new().get("/", index);
+    let tree = Arc::new(Tree::from(app));
+
+    loop {
+        let (stream, addr) = listener.accept().await?;
+        let tree = tree.clone();
+        tokio::task::spawn(async move {
+            if let Err(err) = serve(stream, tree, Some(addr)).await {
+                eprintln!("Error while serving HTTP connection: {err}");
+            }
+        });
+    }
+}