Derive Macro RequestFilter

#[derive(RequestFilter)]

This macro will automatically implement RequestFilter by chaining the handlers identified in the struct’s fields.

Each handler has to implement RequestFilter trait. The handlers will be called in the order in which they are listed. Each handler can prevent the subsequent handlers from being called by returning RequestFilterResult::ResponseSent or RequestFilterResult::Handled.

The configuration and context for the struct will be implemented implicitly. These will have the configuration/context of the respective handler in a field with the same name as the handler in this struct.

use module_utils::{FromYaml, RequestFilter};
use compression_module::CompressionHandler;
use static_files_module::StaticFilesHandler;

#[derive(Debug, RequestFilter)]
struct Handler {
    compression: CompressionHandler,
    static_files: StaticFilesHandler,
}

type Conf = <Handler as RequestFilter>::Conf;

let conf = Conf::load_from_yaml("test.yaml").ok().unwrap_or_else(Conf::default);
let handler: Handler = conf.try_into().unwrap();