deno_ttl
Simple in-memory TTL(Time To Live) cache for Deno.
Usage
import TTL from "https://deno.land/x/ttl/mod.ts";
const ttl = new TTL<string>(10_000);
ttl.addEventListener("hit", (event) => {
console.log("hit %s with value: %s", event.key, event.val);
});
ttl.set("foo", "bar");
ttl.set("ping", "pong", 20 * 1000);
ttl.set("user", "justjavac", 30 * 1000);
ttl.get("foo"); // > 'bar'
ttl.get("user"); // > 'justjavac'
ttl.get("ping"); // > 'pong'
ttl.get("lol"); // > undefined
// after 10 seconds
ttl.get("foo"); // > undefined
ttl.size; // > 2
ttl.del("ping"); // > 'pong'
ttl.get("ping"); // > undefined
ttl.size; // > 1
ttl.clear();
ttl.size; // > 0
Events
Usage:
ttl.addEventListener("set", (event) => {
// event.key, event.val, event.expire
});
function onhit(event: TTLEvent<string>) {
// event.key, event.val, event.expire
}
ttl.addEventListener("hit", onhit);
ttl.removeEventListener("hit", onhit);
set
- The key has been added or changed.del
- The key has been removed manually or due to expiry.expired
- The key was expired.hit
- The key was found in TTL cache.miss
- The key was not found in TTL cache.drop
- The key was not been added.
License
deno_ttl is released under the MIT License. See the bundled LICENSE file for details.