@mikro-orm/core/cache/MemoryCacheAdapter.js

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.

/** In-memory cache adapter with time-based expiration. Used as the default result cache. */
export class MemoryCacheAdapter {
    #data = new Map();
    #options;
    constructor(options) {
        this.#options = options;
    }
    /**
     * @inheritDoc
     */
    get(name) {
        const data = this.#data.get(name);
        if (data) {
            if (data.expiration < Date.now()) {
                this.#data.delete(name);
            }
            else {
                return data.data;
            }
        }
        return undefined;
    }
    /**
     * @inheritDoc
     */
    set(name, data, origin, expiration) {
        this.#data.set(name, { data, expiration: Date.now() + (expiration ?? this.#options.expiration) });
    }
    /**
     * @inheritDoc
     */
    remove(name) {
        this.#data.delete(name);
    }
    /**
     * @inheritDoc
     */
    clear() {
        this.#data.clear();
    }
}