json2lines

This package is designed to take JSON files of any size with multiple
sub-documents and produce a JSONL or JSON Lines file from the data.
Take the example document:

``json
{
"fruits": [
{
"name": "Apple",
"color": "red"
},
{
"name": "Orange",
"color": "red"
}
]
}
`

Run it through json2lines package:

`shell

npx json2lines --input input.json --output output.jsonl --filter fruits.*

`

Will result in the following JSON Lines to the output.jsonl file:

`json
{"name":"Apple","color":"red"}
{"name":"Orange","color":"orange"}

`

Filtering

In the example above, you can see we passed the filter foods.*. This tells
us to extract the object in the foods array in the root object. For this
functionality we make use of JSONStream`. For more information on filters, you
can visit the documentation here:

https://github.com/dominictarr/JSONStream#jsonstreamparsepath

Performance

Memory wise the program stays near baseline for Node.JS, with a 2.6GB file with
374k entries running at <50MB in the Task Manager on a Windows 10 x64 machine.
The file took roughly 6m40s on a AMD FX-8120 and Budget SSD doing both reads and
writes.