Macro with_middlewares 

macro_rules! with_middlewares {
    ($self:ident, $handler:path) => { ... };
    ($self:ident, $handler:path, $($extra:expr),+ $(,)?) => { ... };
}

A helper macro to wrap an async handler method into a RequestHandler and compose it with middlewares.

Example

let handle = with_middlewares!(self, Self::internal_handle_sse_message);
handle

// OR
let handler = with_middlewares!(self, Self::internal_handle_sse_message, extra_middlewares1, extra_middlewares2);