vld-http-common

use vld_http_common::{parse_json_body, require_json_content_type, VldHttpError};

vld::schema! {
    #[derive(Debug)]
    pub struct User {
        pub name: String => vld::string().min(2),
    }
}

fn extract(content_type: Option<&str>, body: &[u8]) -> Result<User, VldHttpError> {
    require_json_content_type(content_type)?;      // 415
    let value = parse_json_body(body)?;              // 422 on malformed JSON
    Ok(User::parse_value(&value)?)                   // 422 on validation errors
}

let err = extract(Some("application/json"), br#"{"name": "A"}"#).unwrap_err();
assert_eq!(err.status(), 422);
assert_eq!(err.body()["issues"][0]["code"], "too_small");

let err = extract(Some("text/plain"), b"{}").unwrap_err();
assert_eq!(err.status(), 415);

use vld_http_common::{parse_coerced, query_string_to_json};

vld::schema! {
    #[derive(Debug)]
    pub struct Search {
        pub q: String => vld::string(),
        pub page: i64 => vld::number().int().min(1),
        pub tags: Vec<String> => vld::array(vld::string()),
    }
}

let value = query_string_to_json("q=123&page=2&tags=a");
let s: Search = parse_coerced(&value).unwrap();
assert_eq!((s.q.as_str(), s.page, s.tags.len()), ("123", 2, 1));