axum-server-timing

An axum layer to inject the Server-Timing HTTP header into the response.

For a reference on the header please see developer.mozilla.org.

Examples

Using the layer to inject the Server-Timing Header.

    let app = Router::new()
        .route("/", get(handler))
        .layer(axum_server_timing::ServerTimingLayer::new("HelloService"));

Output

HTTP/1.1 200 OK
content-type: text/html; charset=utf-8
content-length: 22
server-timing: HelloService;dur=102
date: Wed, 19 Apr 2023 15:25:40 GMT

<h1>Hello, World!</h1>

Using the layer to inject the Server-Timing Header with description.

    let app = Router::new()
        .route("/", get(handler))
        .layer(
        axum_server_timing::ServerTimingLayer::new("HelloService")
            .with_description("whatever")
        );

Output

HTTP/1.1 200 OK
content-type: text/html; charset=utf-8
content-length: 22
server-timing: HelloService;desc="whatever";dur=102
date: Wed, 19 Apr 2023 15:25:40 GMT

<h1>Hello, World!</h1>