zero4rs 2.0.0

zero4rs is a powerful, pragmatic, and extremely fast web framework for Rust
Documentation 
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use crate::prelude2::*;

use futures::stream::StreamExt;

pub async fn ttl(
    query: web::Query<HashMap<String, String>>,
    request: HttpRequest,
    app_state: web::Data<AppContext>,
) -> impl Responder {
    let key = query
        .get("key")
        .cloned()
        .unwrap_or_else(|| String::from(""));

    let val = app_state
        .rudis()
        .ttl(&key)
        .await
        .map_err(|e| Error::throw("", Some(e)))?;

    request.json(200, R::ok(val))
}

pub async fn exists(
    query: web::Query<HashMap<String, String>>,
    request: HttpRequest,
    app_state: web::Data<AppContext>,
) -> impl Responder {
    let key = query
        .get("key")
        .cloned()
        .unwrap_or_else(|| String::from(""));

    let val = app_state
        .rudis()
        .exists(&key)
        .await
        .map_err(|e| Error::throw("", Some(e)))?;

    request.json(200, R::ok(val))
}

pub async fn set(
    query: web::Query<HashMap<String, String>>,
    body: web::Bytes,
    request: HttpRequest,
    app_state: web::Data<AppContext>,
) -> impl Responder {
    let key = query
        .get("key")
        .cloned()
        .unwrap_or_else(|| String::from(""));

    let val = match crate::commons::bytes_to_string(body.to_vec()) {
        Ok(val) => val,
        Err(e) => return request.json(200, R::failed(500, e.to_string())),
    };

    app_state
        .rudis()
        .set(&key, &val, 60 * 5)
        .await
        .map_err(|e| Error::throw("", Some(e)))?;

    request.json(200, R::ok(true))
}

pub async fn get(
    query: web::Query<HashMap<String, String>>,
    request: HttpRequest,
    app_state: web::Data<AppContext>,
) -> impl Responder {
    let key = query
        .get("key")
        .cloned()
        .unwrap_or_else(|| String::from(""));

    let val = app_state
        .rudis()
        .get(&key)
        .await
        .map_err(|e| Error::throw("", Some(e)))?;

    request.json(200, R::ok(val))
}

pub async fn rpub(
    query: web::Query<HashMap<String, String>>,
    body: web::Bytes,
    request: HttpRequest,
    app_state: web::Data<AppContext>,
) -> impl Responder {
    let topic = query
        .get("topic")
        .ok_or_else(|| Error::invalid_request("Missing query string parameter: topic"))?;

    let message = match crate::commons::bytes_to_string(body.to_vec()) {
        Ok(val) => val,
        Err(e) => return request.json(200, R::failed(500, e.to_string())),
    };

    match app_state.rudis().publishs(topic, &message).await {
        Ok(_) => request.json(200, R::ok(true)),
        Err(e) => request.json(200, R::failed(500, e.to_string())),
    }
}

pub async fn rsub(
    query: web::Query<HashMap<String, String>>,
    app_state: web::Data<AppContext>,
) -> Result<HttpResponse> {
    let topic = query
        .get("topic")
        .ok_or_else(|| Error::invalid_request("Missing query string parameter: topic"))?;

    match app_state.rudis().subscribe(topic).await {
        Ok(rx) => Ok(HttpResponse::Ok()
            .append_header(("Content-Type", "text/event-stream; charset=utf-8"))
            .append_header(("Cache-Control", "no-store"))
            .append_header(("X-Accel-Buffering", "no"))
            .streaming(rx.map(
                |message| -> core::result::Result<actix_web::web::Bytes, std::convert::Infallible> {
                    log::info!("subscribe_message: message={}", message);
                    Ok(actix_web::web::Bytes::from(message))
                },
            ))),
        Err(e) => Ok(HttpResponse::Ok().json(R::failed(400, e.to_string()))),
    }
}