{
        let mut cache = data.cache.lock().await;
        cache.insert(csrf, token, std::time::Duration::from_secs(600));
    }

use tokio::sync::Mutex;
use ttl_cache::TtlCache;
use uuid::Uuid;

    pub cache: Mutex<TtlCache<Uuid, Uuid>>,

        cache_capacity,

        cache: tokio::sync::Mutex::new(ttl_cache::TtlCache::new(cache_capacity)),

    pub cache_capacity: usize,

ttl_cache = "0.5"
tokio = "1.15"

 "tokio",

 "ttl_cache",

name = "linked-hash-map"
version = "0.5.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
[[package]]

name = "ttl_cache"
version = "0.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4189890526f0168710b6ee65ceaedf1460c48a14318ceec933cb26baa492096a"
dependencies = [
 "linked-hash-map",
]
[[package]]