jsonparser VS gron

In this article, I will introduce you to a new package called astjson that I have been working on for the last couple of weeks. It is a Go package that allows you to transform and merge JSON objects with unmatched speed. It is based on the jsonparser package by buger aka Leonid Bugaev and extends it with the ability to transform and merge JSON objects at unparalleled performance.

Use this to extract the data value, and handle/unmarshal it accordingly.

jsonparser can decode, but can't encode

Best I've found is this: https://github.com/buger/jsonparser

I was actually just trying to get it into a []byte to use this package which claims it works well for unknown data structures.

`jj` is a little tool I wrote that uses https://github.com/buger/jsonparser

If you don't know the schema or you only need to access one or two fields in a much larger JSON object, I would recommend https://github.com/buger/jsonparser as it provides an easy API to access specific values without fully unmarshaling. This is an unusual use case though, 9 times out of 10 I would tend to use easyjson.

Reading and navigating arbitrary JSON: I've used https://github.com/tidwall/gjson, many others like https://github.com/buger/jsonparser are also out there.

gron (https://github.com/tomnomnom/gron) to transform it and query and then invert the transformation?

It buffers all of its output statements in memory before writing to stdout:

https://github.com/tomnomnom/gron/blob/master/main.go#L204

Have you tried `gron`?

It converts your nested json into a line by line format which plays better with tools like `grep`

From the project's README:

▶ gron "https://api.github.com/repos/tomnomnom/gron/commits?per_page..." | fgrep "commit.author"

json[0].commit.author = {};

json[0].commit.author.date = "2016-07-02T10:51:21Z";

json[0].commit.author.email = "[email protected]";

json[0].commit.author.name = "Tom Hudson";

https://github.com/tomnomnom/gron

It was suggested to me in HN comments on an article I wrote about `jq`, and I have found myself using it a lot in my day to day workflow

> So all I want is a tool to go from json => line oriented and I will do the rest with the vast library of experience I already have at transformations on the command line.*

The tool for that is likely https://github.com/tomnomnom/gron

If JQ is too much, see GRON &| Miller

gron transforms JSON into discrete assignments to make it easier to grep for what you want https://github.com/tomnomnom/gron

Miller is like awk, sed, cut, join, and sort for data formats such as CSV, TSV, JSON, JSON https://github.com/johnkerl/miller

And jless [1] and gron [2].

This is the first I'm hearing of gron, but adding here for completeness sake. Meanwhile, JSON seems to be becoming a standard for CLI tools. Ideal scenario would be if every CLI tool has a --json flag or something similar, so that jc is not needed anymore.

[1] https://jless.io/

[2] https://github.com/tomnomnom/gron