haproxy-api 0.9.0

HAProxy 2.8+ Lua API
Documentation 
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use mlua::{FromLua, IntoLuaMulti, Lua, ObjectLike, Result, Table, Value};

/// The "Fetches" class allows to call a lot of internal HAProxy sample fetches.
#[derive(Clone)]
pub struct Fetches(Table);

impl Fetches {
    /// Executes an internal haproxy sample fetch.
    #[inline]
    pub fn get<R>(&self, name: &str, args: impl IntoLuaMulti) -> Result<R>
    where
        R: FromLua,
    {
        self.0.call_method(name, args)
    }

    /// The same as `get` but always returns string.
    #[inline]
    pub fn get_str(&self, name: &str, args: impl IntoLuaMulti) -> Result<String> {
        Ok((self.0.call_method::<Option<_>>(name, args)?).unwrap_or_default())
    }
}

impl FromLua for Fetches {
    #[inline]
    fn from_lua(value: Value, lua: &Lua) -> Result<Self> {
        Ok(Fetches(Table::from_lua(value, lua)?))
    }
}