npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@node-redis/json

v1.0.2

Published

This package provides support for the [RedisJSON](https://redisjson.io) module, which adds JSON as a native data type to Redis. It extends the [Node Redis client](https://github.com/redis/node-redis) to include functions for each of the RedisJSON command

Downloads

282,746

Readme

@node-redis/json

This package provides support for the RedisJSON module, which adds JSON as a native data type to Redis. It extends the Node Redis client to include functions for each of the RedisJSON commands.

To use these extra commands, your Redis server must have the RedisJSON module installed.

Usage

For a complete example, see managing-json.js in the Node Redis examples folder.

Storing JSON Documents in Redis

The JSON.SET command stores a JSON value at a given JSON Path in a Redis key.

Here, we'll store a JSON document in the root of the Redis key "mydoc":

import { createClient } from 'redis';

...
await client.json.set('noderedis:jsondata', '$', {
  name: 'Roberta McDonald',
  pets: [
    {
    name: 'Rex',
    species: 'dog',
    age: 3,
    isMammal: true
    },
    {
    name: 'Goldie',
    species: 'fish',
    age: 2,
    isMammal: false
    }
  ]
});

For more information about RedisJSON's path syntax, check out the documentation.

Retrieving JSON Documents from Redis

With RedisJSON, we can retrieve all or part(s) of a JSON document using the JSON.GET command and one or more JSON Paths. Let's get the name and age of one of the pets:

const results = await client.json.get('noderedis:jsondata', {
  path: [
    '.pets[1].name',
    '.pets[1].age'
  ]
});

results will contain the following:

 { '.pets[1].name': 'Goldie', '.pets[1].age': 2 }

Performing Atomic Updates on JSON Documents Stored in Redis

RedisJSON includes commands that can atomically update values in a JSON document, in place in Redis without having to first retrieve the entire document.

Using the JSON.NUMINCRBY command, we can update the age of one of the pets like this:

await client.json.numIncrBy('noderedis:jsondata', '.pets[1].age', 1);

And we can add a new object to the pets array with the JSON.ARRAPPEND command:

 await client.json.arrAppend('noderedis:jsondata', '.pets', {
    name: 'Robin',
    species: 'bird',
    age: 1,
    isMammal: false
  });