sveltekit-rate-limiter/dist/server/stores/retryAfterStore.js

A modular rate limiter for SvelteKit. Use in password resets, account registration, etc.

import TTLCache from '@isaacs/ttlcache';
export class RetryAfterStore {
    cache;
    constructor(maxItems = Infinity) {
        this.cache = new TTLCache({
            max: maxItems,
            noUpdateTTL: true
        });
    }
    async clear() {
        return this.cache.clear();
    }
    async add(hash, ttl) {
        const currentRate = this.cache.get(hash);
        if (currentRate)
            return this.cache.get(hash) ?? 0;
        const retryAfter = Date.now() + ttl;
        this.cache.set(hash, retryAfter, { ttl });
        return retryAfter;
    }
}