unstorage

A universal key-value storage API provides a single consistent interface for runtime-agnostic data operations. You can use async methods with automatic JSON serialization to cache or persist data across Node, Bun, Deno, and edge Workers without coupling logic to a specific backend.

Mounting multiple storage drivers at namespace prefixes allows you to combine Redis, filesystem, and Cloudflare KV backends under scoped paths. This enables layered overlays and multi-backend mounting so application logic can interact with different storage engines through a unified key-value API.

Creating a custom driver involves defining lifecycle hooks for a specialized backend. The universal key-value storage API allows you to implement custom driver logic so your application can interact with proprietary or unsupported storage systems using the same async methods.

Caching data with TTL and managing sessions is supported through driver-specific options. You can configure in-memory or persistent key-value storage backends with TTL settings, base paths, and watch events to handle session stores and cache invalidation efficiently.

Snapshot and restore capabilities allow you to capture and reinstate key-value storage data. This is useful for creating backups, seeding test databases, or migrating state, ensuring you can easily save and load the entire contents of your storage instance across different drivers.

Pluggable key-value storage supports remote access via an HTTP driver and server access. This enables remote data operations and watch events over HTTP, allowing separate applications or edge Workers to interact with the same persistent storage instance.