Trait Handler 

pub trait Handler: Send + Sync {
    // Required method
    fn handle(&self, req: &Request) -> Response;
}

Turns a Request into a Response.

The trait is deliberately synchronous: the engine is sans-I/O and every runtime (thread pool, tokio, mio) calls the handler the same way, so a single handler implementation works everywhere. Handlers must be Send + Sync because they are shared across worker threads / tasks.

Required Methods

fn handle(&self, req: &Request) -> Response

Handle one request and produce the response to send back.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Handler for Router

impl Handler for StaticFiles

impl<F> Handler for F

where F: Fn(&Request) -> Response + Send + Sync,

Any Fn(&Request) -> Response is a handler.