Parsing JSON in 500 lines of Rust

1. json

   1 43 5,236 8.5 Rust

   Strongly typed JSON library for Rust (by serde-rs)

   

   I have to commend on the simplicity and clarity of thought in the write up. I could see what you were up to just by a skim through it (also thanks for the ready reference)!

   I'm pretty sure you'd already know of this, but once you've written your own version, it might help to compare and take notes from a popular, well-established, benchmarked library: https://github.com/serde-rs/json.

2. Stream

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3. sonny-jim

   2 1 4 6.9 Rust

   Yet another JSON library for rust

   

   I need to work on my rust JSON parser some more[0]. I intended it handle deeply nested (malicious) objects gracefully and with little memory allocations. It's also pretty fast.

   I had a goal of making it "async", so it could periodically yield for large input strings, but I'm not so sure it matters much.

   Currently the API is pretty impractical to use, because of the arena structure that is set up. It could be improved

   [0] https://github.com/conradludgate/sonny-jim

4. criterion.rs

   3 32 5,123 7.2 Rust

   Statistics-driven benchmarking library for Rust

   

   Regarding the 'sudo' issue: Doing a benchmark by just running an example executable is not really recommended because there's a ton of reasons why you might get differing performance.

   It's probably better to set up an actual benchmark using a crate like Criterion instead [0].

   [0] https://github.com/bheisler/criterion.rs

5. iter.json

   4 1 3 4.2 Go

   ezpkg.io/iter.json

   

6. ujson

   5 2 82 3.8 Go

   µjson - A fast and minimal JSON parser and transformer that works on unstructured JSON

   

7. nom

   6 92 9,993 8.1 Rust

   Rust parser combinator framework

   

   And on a related note, this project was for educational purposes, but if the author wants to do more parsing in Rust, there's the excellent `nom` crate [1], which provides a JSON parser as an example [2].

   It uses a very similar paradigm to what the author used in the article, and provides a lot of helper utilities. I used it to parse a (very, very small) subset of Markdown recently [3] and enjoyed the experience.

   [1] https://github.com/rust-bakery/nom

   [2] https://github.com/rust-bakery/nom/blob/main/examples/json.r...

   [3] https://git.sr.ht/~bsprague/logseq-to-linkwarden

8. jsonparser

   7 1 0 5.9 Rust

   JSON parser creating Rust objects in-memory. (by rectalogic)

   

   I changed it to use Cow, performance improved from 121.02 MB/s to 278.66 MB/s

   https://github.com/rectalogic/jsonparser

9. InfluxDB

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10. jsb

    8 3 3 6.7 C

    Fast json <=> binary serializer library for C

    

    That sounds a little like what I came up with a little while back. My lib can stream JSON to/from my own compact binary format that is easy to traverse/emit in C:

    https://github.com/nwpierce/jsb/

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