nik-rev

nik-rev / serde-cursor

Public

Easily and efficiently extract deeply nested data in Rust

14
0
100% credibility
Found Mar 21, 2026 at 14 stars -- GitGems finds repos before they trend. Get early access to the next one.
Sign Up Free
AI Analysis
Rust
AI Summary

A Rust library for declaratively extracting specific nested fields from data files using simple path queries, avoiding full data loading.

How It Works

1
📁 Spot the need

You're working with a config file full of nested settings and just want to grab one specific detail like a version number.

2
🔍 Discover the tool

You learn about a handy helper that lets you point right to that detail using a simple path description.

3
📝 Describe your path

You write a short, easy path like 'workspace.package.version' to tell it exactly where to look.

4
✨ Pull the data

The tool reads the file and instantly fetches just that one piece, skipping all the rest.

5
✅ Use your info

You get the clean value ready to use in your work, feeling quick and lightweight.

🎉 Mission accomplished

Now you effortlessly extract any nested info from files whenever you need it, saving time and hassle.

Sign up to see the full architecture

4 more

Sign Up Free

Star Growth

See how this repo grew from 14 to 14 stars Sign Up Free
Repurpose This Repo

Repurpose is a Pro feature

Generate ready-to-use prompts for X threads, LinkedIn posts, blog posts, YouTube scripts, and more -- with full repo context baked in.

Unlock Repurpose
AI-Generated Review

What is serde-cursor?

Serde-cursor lets Rust developers easily and efficiently extract deeply nested data from serde-compatible formats like JSON or TOML using a jq-like cursor syntax in a macro. Instead of defining full struct hierarchies to drill down to a value, you write `Cursor!(path.to.field)` and deserialize directly to your target type, skipping unnecessary memory loads. It handles fields, array indices, and wildcards for collecting lists without boilerplate.

Why is it gaining traction?

It beats alternatives like serde-query by being more concise—no attribute strings or full structs needed, just inline macro paths that expand at compile time. Developers notice the crisp error messages pinpointing failures like ".author.id: expected i32", plus seamless serde_with integration for structs. The efficiency shines on large docs, pulling only what you need without full parsing.

Who should use this?

Rust backend devs parsing config files like Cargo.toml or lockfiles to grab versions and deps. API consumers extracting fields from bloated JSON responses, or log processors filtering nested events into Vec without intermediate models. Ideal for CLI tools or scripts where serde deserialization feels heavy.

Verdict

Try it for targeted extractions in serde workflows—solid docs and examples make onboarding fast, but with 14 stars and 1.0% credibility, it's early-stage; pair with tests until maturity grows. Worth starring if jq-style paths fit your stack.

(178 words)

Sign up to read the full AI review Sign Up Free

Similar repos coming soon.