vld-rama 0.4.5

Rama integration for the vld validation library
Documentation 
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use crate::rejection::VldRejection;
use rama::http::header;
use rama::http::request::Parts;
use rama::http::service::web::extract::FromPartsStateRefPair;
use vld::schema::VldParse;
use vld_http_common::cookies_to_json;

/// Rama extractor that validates **cookie values** from the `Cookie` header.
pub struct VldCookie<T>(pub T);

impl<T, State> FromPartsStateRefPair<State> for VldCookie<T>
where
    T: VldParse + Send + Sync + 'static,
    State: Send + Sync + 'static,
{
    type Rejection = VldRejection;

    async fn from_parts_state_ref_pair(
        parts: &Parts,
        _state: &State,
    ) -> Result<Self, Self::Rejection> {
        let cookie_header = parts
            .headers
            .get(header::COOKIE)
            .and_then(|v| v.to_str().ok())
            .unwrap_or("");

        let value = cookies_to_json(cookie_header);
        let parsed = T::vld_parse_value(&value).map_err(VldRejection::from_vld)?;
        Ok(VldCookie(parsed))
    }
}