JQLite (lemmy.ml)

submitted 1 week ago by jay0072007@lemmy.ml to c/opensource@lemmy.ml

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JQLite - The query language for JSON

Created a simple query language in Typescript,

however this is not any replacement for existing tools, but a side/learning project.

Features:

Basic query selection
Fallback Mechanism
Wildcard support
Array Slices
Multiple Key Selection
Key Omission
Single Key Omission
Functions
Comparison Operators
Conditions
Configurable

Here's an example to get the name of all the products which has a price greater than 1500

$.products[?(@.price > 1500)][*].name

Documentation site: https://jqlite.vercel.app/

GitHub: https://github.com/Jay-Karia/jqlite

NPM Package: https://www.npmjs.com/package/jqlite-ts

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[-] HelloRoot@lemy.lol 11 points 1 week ago* (last edited 1 week ago)

I prefer the native js/ts approach that is readable by humans and doesn't need an extra dependency:

const result = data.products
  .filter(p => p.price > 1500)
  .map(p => p.name);

[-] eager_eagle@lemmy.world 2 points 1 week ago

Forget the dependency, I don't want another language in my code.

[-] ptman@sopuli.xyz 4 points 1 week ago

There exists JSONPath

[-] sxan@midwest.social 2 points 1 week ago

Yeah, but the implementations are really sparse. JQuery sucked all of the air out of the room.

I much prefer JSONPath, although it's a little rough in some areas where JSON's design doesn't align 1:1 with XML and XPath.

Do you use it? Is there a good CLI tool for it? Every few years I get mighty sick of jq and go looking for an alternative, and I haven't found a good JSONPath implementation yet.

this post was submitted on 12 May 2025

33 points (83.7% liked)

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