add askama example

template_askama/src/main.rs

@@ -0,0 +1,45 @@
+extern crate actix;
+extern crate actix_web;
+#[macro_use]
+extern crate askama;
+
+use actix::prelude::*;
+use actix_web::{http, server, App, HttpRequest, HttpResponse, Result};
+use askama::Template;
+
+#[derive(Template)]
+#[template(path = "user.html")]
+struct UserTemplate<'a> {
+    name: &'a str,
+    text: &'a str,
+}
+
+#[derive(Template)]
+#[template(path = "index.html")]
+struct Index;
+
+fn index(req: HttpRequest) -> Result<HttpResponse> {
+    let s = if let Some(name) = req.query().get("name") {
+        UserTemplate {
+            name: name,
+            text: "Welcome!",
+        }.render()
+            .unwrap()
+    } else {
+        Index.render().unwrap()
+    };
+    Ok(HttpResponse::Ok().content_type("text/html").body(s))
+}
+
+fn main() {
+    let sys = System::new("template-askama");
+
+    // start http server
+    server::new(move || App::new().resource("/", |r| r.method(http::Method::GET).f(index)))
+        .bind("0.0.0.0:8080")
+        .unwrap()
+        .start();
+
+    println!("Started http server: 127.0.0.1:8080");
+    let _ = sys.run();
+}