mirror of
https://github.com/robertwayne/axum-htmx
synced 2024-12-01 15:34:32 +01:00
40 lines
1.3 KiB
Rust
40 lines
1.3 KiB
Rust
//! Using `auto-vary` middleware
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//!
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//! Don't forget about the feature while running it:
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//! `cargo run --features auto-vary --example auto-vary`
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use std::time::Duration;
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use axum::{response::Html, routing::get, serve, Router};
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use axum_htmx::{AutoVaryLayer, HxRequest};
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use tokio::{net::TcpListener, time::sleep};
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#[tokio::main]
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async fn main() {
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let app = Router::new()
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.route("/", get(handler))
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// Add the middleware
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.layer(AutoVaryLayer);
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let listener = TcpListener::bind("0.0.0.0:3000").await.unwrap();
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serve(listener, app).await.unwrap();
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}
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// Our handler differentiates full-page GET requests from htmx-based ones by looking at the `hx-request`
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// requestheader.
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//
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// The middleware sees the usage of the `HxRequest` extractor and automatically adds the
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// `Vary: hx-request` response header.
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async fn handler(HxRequest(hx_request): HxRequest) -> Html<&'static str> {
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if hx_request {
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// For htmx-based GET request, it returns a partial page update
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sleep(Duration::from_secs(3)).await;
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return Html("htmx response");
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}
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// While for a normal GET request, it returns the whole page
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Html(
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r#"
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<script src="https://unpkg.com/htmx.org@1"></script>
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<p hx-get="/" hx-trigger="load">Loading ...</p>
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"#,
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)
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}
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