Caching Headers

Middleware that provides support for cache header configuration.

In fact, the implementation contains three Handler implementations of CachingHeaders, Modified, ETag, and CachingHeaders is a combination of the latter two. Normally, CachingHeaders is used.

Example

use salvo::prelude::*;

#[handler]
async fn hello() -> &'static str {
    "Hello World"
}

#[tokio::main]
async fn main() {
    tracing_subscriber::fmt().init();

    // CachingHeader must be before Compression.
    let router = Router::with_hoop(CachingHeaders::new())
        .hoop(Compression::new().min_length(0))
        .get(hello);
    let acceptor = TcpListener::new("127.0.0.1:5800").bind().await;
    Server::new(acceptor).serve(router).await;
}

[package]
name = "example-caching-headers"
version = "0.1.0"
edition = "2021"
publish = false

[dependencies]
salvo = { workspace = true, features = ["caching-headers", "compression"] }
tokio = { version = "1", features = ["macros"] }
tracing = "0.1"
tracing-subscriber = "0.3"