Add HTML template example (#17)

2026-08-26 00:00:23 +02:00 · 2021-06-13 13:58:12 +02:00
parent 460828a3cb
commit 2f6699aeae
4 changed files with 60 additions and 0 deletions
@@ -0,0 +1,54 @@
+use askama::Template;
+use awebframework::{prelude::*, response::IntoResponse};
+use http::{Response, StatusCode};
+use std::net::SocketAddr;
+
+#[tokio::main]
+async fn main() {
+    tracing_subscriber::fmt::init();
+
+    // build our application with some routes
+    let app = route("/greet/:name", get(greet));
+
+    // run it
+    let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
+    tracing::debug!("listening on {}", addr);
+    app.serve(&addr).await.unwrap();
+}
+
+async fn greet(params: extract::UrlParamsMap) -> impl IntoResponse {
+    let name = params
+        .get("name")
+        .expect("`name` will be there if route was matched")
+        .to_string();
+
+    let template = HelloTemplate { name };
+
+    HtmlTemplate(template)
+}
+
+#[derive(Template)]
+#[template(path = "hello.html")]
+struct HelloTemplate {
+    name: String,
+}
+
+struct HtmlTemplate<T>(T);
+
+impl<T> IntoResponse for HtmlTemplate<T>
+where
+    T: Template,
+{
+    fn into_response(self) -> http::Response<Body> {
+        match self.0.render() {
+            Ok(html) => response::Html(html).into_response(),
+            Err(err) => Response::builder()
+                .status(StatusCode::INTERNAL_SERVER_ERROR)
+                .body(Body::from(format!(
+                    "Failed to render template. Error: {}",
+                    err
+                )))
+                .unwrap(),
+        }
+    }
+}
@@ -0,0 +1 @@
+<h1>Hello, {{ name }}!</h1>