@types/keyv

What is @types/keyv?

The @types/keyv package provides TypeScript type definitions for Keyv, a simple key-value storage with support for multiple backends. It allows TypeScript users to work with Keyv more effectively by offering type checking and IntelliSense features in their IDEs. Keyv itself is a simple, promisified key-value storage solution that supports various storage backends like Redis, MongoDB, SQLite, and more.

What are @types/keyv's main functionalities?

Basic Key-Value Operations

This feature demonstrates basic CRUD operations: setting, getting, deleting, and clearing key-value pairs. It's the core functionality of Keyv, allowing simple data storage and retrieval.

{"import Keyv from 'keyv';
const keyv = new Keyv();

// Set a value
await keyv.set('foo', 'bar');

// Get a value
const value = await keyv.get('foo');
console.log(value); // 'bar'

// Delete a value
await keyv.delete('foo');

// Clear all keys
await keyv.clear();"}

Using Namespaces

This feature shows how to use namespaces to separate different types of data within the same database or storage backend. It's useful for organizing data and preventing key collisions.

{"import Keyv from 'keyv';
const users = new Keyv('sqlite://path/to/database.sqlite', { namespace: 'users' });
const cache = new Keyv('sqlite://path/to/database.sqlite', { namespace: 'cache' });

// Set and get values in the 'users' namespace
await users.set('john', { age: 30 });
const john = await users.get('john');
console.log(john); // { age: 30 }

// The 'cache' namespace remains unaffected
const cacheValue = await cache.get('john');
console.log(cacheValue); // undefined"}

Custom Storage Backend

This feature illustrates how to use a custom storage backend, in this case, Redis, with Keyv. It demonstrates Keyv's flexibility in supporting different storage solutions.

{"import Keyv from 'keyv';
import KeyvRedis from '@keyv/redis';
const keyv = new Keyv({ store: new KeyvRedis('redis://user:pass@localhost:6379') });

// Now Keyv will use Redis as its storage backend
await keyv.set('hello', 'world');
const value = await keyv.get('hello');
console.log(value); // 'world'"}

Other packages similar to @types/keyv

node-cache

node-cache is an in-memory key-value store similar to Keyv but lacks built-in support for multiple backends like Redis or MongoDB. It's simpler but not as flexible for different storage requirements.

levelup

levelup is a wrapper for LevelDB. It provides a flexible key-value database with a simple interface. Unlike Keyv, levelup is more focused on LevelDB and does not natively support multiple backends without additional plugins.

ioredis

ioredis is a robust, performance-focused Redis client for Node.js. While it offers advanced Redis-specific functionalities, it doesn't provide the backend-agnostic key-value storage interface that Keyv does.

README

Installation

npm install --save @types/keyv

Summary

This package contains type definitions for keyv (https://github.com/lukechilds/keyv).

Details

Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/keyv.

Additional Details

• Last updated: Tue, 07 Sep 2021 09:31:23 GMT
• Dependencies: @types/node
• Global values: none

Credits

These definitions were written by AryloYeung, and BendingBender.