GJSON
gabs
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GJSON
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Rob Pike: Gobs of data (2011)
Someone made a benchmark of serialization libraries in go [1], and I was surprised to see gobs is one of the slowest ones, specially for decoding. I suspect part of the reason is that the API doesn't not allow reusing decoders [2]. From my explorations it seems like both JSON [3], message-pack [4] and CBOR [5] are better alternatives.
By the way, in Go there are a like a million JSON encoders because a lot of things in the std library are not really coded for maximum performance but more for easy of usage, it seems. Perhaps this is the right balance for certain things (ex: the http library, see [6]).
There are also a bunch of libraries that allow you to modify a JSON file "in place", without having to fully deserialize into structs (ex: GJSON/SJSON [7] [8]). This sounds very convenient and more efficient that fully de/serializing if we just need to change the data a little.
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1: https://github.com/alecthomas/go_serialization_benchmarks
2: https://github.com/golang/go/issues/29766#issuecomment-45492...
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3: https://github.com/goccy/go-json
4: https://github.com/vmihailenco/msgpack
5: https://github.com/fxamacker/cbor
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6: https://github.com/valyala/fasthttp#faq
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7: https://github.com/tidwall/gjson
8: https://github.com/tidwall/sjson
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Jj: JSON Stream Editor
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I don't think there is a way to sort an array, though. However, there is an option to have keys sorted. Personally, I don't think there is much annoyance in that. One could just pipe `jj` output to `sort | uniq -c`.
[0]: https://github.com/tidwall/gjson/blob/master/SYNTAX.md
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Library to analyze an arbitrary JSON string
I’m using GJSON, so far so good!
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Mapping json fields in api calls to a struct to store them in a database or cache
If the fields you need are just a small subset of the whole json, maybe https://github.com/tidwall/gjson might be of use to read only those (using jsonpath) without needing to create complete corresponding structs.
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Which CPU to buy based on profiling
Thank you for the reminder, it's never too much of it :) Didn't say it, but the code was pprof-iled many times and i can really say it's well optimized. I use own libraries with on-the-fly equations (sums, avgs, emas, stds, ...) wherever possible and also made custom json parser as json messages are in fixed format, so the parser is about 10x faster than gjson. I optimized it to the point that I avoided using maps, and rather iterate via slice where ever possible.
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Jetro - transform and query JSON format
You are right, for learning purposes this fit my needs, but I can imagine an approach similar to this repo: https://github.com/tidwall/gjson
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Any way to convert unknown/dynamic json to generic object structure
https://github.com/tidwall/gjson is a relatively sensible library if this is something you need to deal with and the structure is actually unknowable.
- Need help with getting the grandchild in nested JSON
- Double down on python or learn Go
- Ad hoc JSON parsing
gabs
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6 🔥 Awesome Golang packages (web devs)
GitHub repo: https://github.com/Jeffail/gabs
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Ask HN: What are some Golang tools you can't live without?
gabs [0]. It helps with dealing with dynamic JSONs with unknown structures.
[0]: https://github.com/Jeffail/gabs
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High-performance JSON parsing in Go
Nice article, I've often found gabs very useful for parsing structless/dynamic json
- Any way to convert unknown/dynamic json to generic object structure
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Polygon: Json Database System designed to run on small servers (as low as 16MB) and still be fast and flexible.
Gabs v2 (github.com/Jeffail/gabs/v2 ), this just makes working with interfaces more easier.
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Wasm difficulties in Rust, Haskell, and Go
gabs depends on reflect
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Is there a way to parse unstructured data?
This might be of interest: https://github.com/Jeffail/gabs
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Jumping execution of function
Hi there, I'm trying to develop a service that picks from a MariaDB database entries with two fields: id (int) and field2(json). I've managed to read the json field by using gabs and with the code arranged like this:
What are some alternatives?
jsoniter - A high-performance 100% compatible drop-in replacement of "encoding/json"
wasi-sockets - WASI API proposal for managing sockets
go-json - Fast JSON encoder/decoder compatible with encoding/json for Go
PolygonDB - PolygonDB is an alternative to MongoDB that provides a developer-friendly experience and less resources hungry.
intrinsic
jsonparser - One of the fastest alternative JSON parser for Go that does not require schema
gojson - Automatically generate Go (golang) struct definitions from example JSON
go-codec - idiomatic codec and rpc lib for msgpack, cbor, json, etc. msgpack.org[Go]
hub - A command-line tool that makes git easier to use with GitHub.
json - A simple dynamic JSON parser.
ngrok - Unified ingress for developers
ffjson - faster JSON serialization for Go