vld-rama 0.4.2

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

/// Rama extractor that validates **URL query parameters**.
///
/// Values are coerced: `"42"` → number, `"true"`/`"false"` → boolean, empty → null.
pub struct VldQuery<T>(pub T);

impl<T, State> FromPartsStateRefPair<State> for VldQuery<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 query_string = parts
            .uri
            .query()
            .map(|q| q.as_encoded_str().into_owned())
            .unwrap_or_default();
        let value = query_string_to_json(&query_string);
        let parsed = T::vld_parse_value(&value).map_err(VldRejection::from_vld)?;
        Ok(VldQuery(parsed))
    }
}