Function internal_server_error

basics/todo/src/api.rs:139–148

(res: dev::ServiceResponse<B>)

}

pub fn internal_server_error<B>(res: dev::ServiceResponse<B>) -> Result<ErrorHandlerResponse<B>> {
    let new_resp = NamedFile::open("static/errors/500.html")?
        .customize()
        .with_status(res.status())
        .respond_to(res.request())
        .map_into_boxed_body()
        .map_into_right_body();

    Ok(ErrorHandlerResponse::Response(res.into_response(new_resp)))
}